configure

   1 #!/bin/sh
   2 #
   3 # Libav 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 LIBAV, 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 Libav."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --disable-postproc       disable libpostproc build
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --enable-vaapi           enable VAAPI code
 110   --enable-vdpau           enable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-frei0r          enable frei0r video filtering
 164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 166   --enable-libopencv       enable video filtering via libopencv [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libfreetype     enable libfreetype [no]
 172   --enable-libgsm          enable GSM support via libgsm [no]
 173   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 174   --enable-libnut          enable NUT (de)muxing via libnut,
 175                            native (de)muxer exists [no]
 176   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 177   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 178   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 179   --enable-libspeex        enable Speex decoding via libspeex [no]
 180   --enable-libtheora       enable Theora encoding via libtheora [no]
 181   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 182   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 183   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 184                            native implementation exists [no]
 185   --enable-libvpx          enable VP8 support via libvpx [no]
 186   --enable-libx264         enable H.264 encoding via x264 [no]
 187   --enable-libxavs         enable AVS encoding via xavs [no]
 188   --enable-libxvid         enable Xvid encoding via xvidcore,
 189                            native MPEG-4/Xvid encoder exists [no]
 190   --enable-mlib            enable Sun medialib [no]
 191   --enable-zlib            enable zlib [autodetect]
 192
 193 Advanced options (experts only):
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-avx            disable AVX optimizations
 227   --disable-armv5te        disable armv5te optimizations
 228   --disable-armv6          disable armv6 optimizations
 229   --disable-armv6t2        disable armv6t2 optimizations
 230   --disable-armvfp         disable ARM VFP optimizations
 231   --disable-iwmmxt         disable iwmmxt optimizations
 232   --disable-mmi            disable MMI optimizations
 233   --disable-neon           disable neon optimizations
 234   --disable-vis            disable VIS optimizations
 235   --disable-yasm           disable use of yasm assembler
 236   --enable-pic             build position-independent code
 237   --malloc-prefix=PFX      prefix malloc and related names with PFX
 238   --enable-sram            allow use of on-chip SRAM
 239   --disable-symver         disable symbol versioning
 240   --optflags               override optimization-related compiler flags
 241
 242 Developer options (useful when working on Libav itself):
 243   --disable-debug          disable debugging symbols
 244   --enable-debug=LEVEL     set the debug level [$debuglevel]
 245   --disable-optimizations  disable compiler optimizations
 246   --enable-extra-warnings  enable more compiler warnings
 247   --samples=PATH           location of test samples for FATE, if not set use
 248                            \$FATE_SAMPLES at make invocation time.
 249
 250 NOTE: Object files are built at the place where configure is launched.
 251 EOF
 252   exit 0
 253 }
 254
 255 quotes='""'
 256
 257 log(){
 258     echo "$@" >> $logfile
 259 }
 260
 261 log_file(){
 262     log BEGIN $1
 263     pr -n -t $1 >> $logfile
 264     log END $1
 265 }
 266
 267 echolog(){
 268     log "$@"
 269     echo "$@"
 270 }
 271
 272 warn(){
 273     log "WARNING: $*"
 274     WARNINGS="${WARNINGS}WARNING: $*\n"
 275 }
 276
 277 die(){
 278     echolog "$@"
 279     cat <<EOF
 280
 281 If you think configure made a mistake, make sure you are using the latest
 282 version from Git.  If the latest version fails, report the problem to the
 283 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 284 EOF
 285     if disabled logging; then
 286         cat <<EOF
 287 Rerun configure with logging enabled (do not use --disable-logging), and
 288 include the log this produces with your report.
 289 EOF
 290     else
 291 cat <<EOF
 292 Include the log file "$logfile" produced by configure as this will help
 293 solving the problem.
 294 EOF
 295     fi
 296     exit 1
 297 }
 298
 299 # Avoid locale weirdness, besides we really just want to translate ASCII.
 300 toupper(){
 301     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 302 }
 303
 304 tolower(){
 305     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 306 }
 307
 308 c_escape(){
 309     echo "$*" | sed 's/["\\]/\\\0/g'
 310 }
 311
 312 sh_quote(){
 313     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 314     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 315     echo "$v"
 316 }
 317
 318 cleanws(){
 319     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 320 }
 321
 322 filter(){
 323     pat=$1
 324     shift
 325     for v; do
 326         eval "case $v in $pat) echo $v ;; esac"
 327     done
 328 }
 329
 330 filter_out(){
 331     pat=$1
 332     shift
 333     for v; do
 334         eval "case $v in $pat) ;; *) echo $v ;; esac"
 335     done
 336 }
 337
 338 map(){
 339     m=$1
 340     shift
 341     for v; do eval $m; done
 342 }
 343
 344 set_all(){
 345     value=$1
 346     shift
 347     for var in $*; do
 348         eval $var=$value
 349     done
 350 }
 351
 352 set_weak(){
 353     value=$1
 354     shift
 355     for var; do
 356         eval : \${$var:=$value}
 357     done
 358 }
 359
 360 set_safe(){
 361     var=$1
 362     shift
 363     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 364 }
 365
 366 get_safe(){
 367     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 368 }
 369
 370 pushvar(){
 371     for var in $*; do
 372         eval level=\${${var}_level:=0}
 373         eval ${var}_${level}="\$$var"
 374         eval ${var}_level=$(($level+1))
 375     done
 376 }
 377
 378 popvar(){
 379     for var in $*; do
 380         eval level=\${${var}_level:-0}
 381         test $level = 0 && continue
 382         eval level=$(($level-1))
 383         eval $var="\${${var}_${level}}"
 384         eval ${var}_level=$level
 385         eval unset ${var}_${level}
 386     done
 387 }
 388
 389 enable(){
 390     set_all yes $*
 391 }
 392
 393 disable(){
 394     set_all no $*
 395 }
 396
 397 enable_weak(){
 398     set_weak yes $*
 399 }
 400
 401 disable_weak(){
 402     set_weak no $*
 403 }
 404
 405 enable_safe(){
 406     for var; do
 407         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 408     done
 409 }
 410
 411 disable_safe(){
 412     for var; do
 413         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 414     done
 415 }
 416
 417 do_enable_deep(){
 418     for var; do
 419         enabled $var && continue
 420         eval sel="\$${var}_select"
 421         eval sgs="\$${var}_suggest"
 422         pushvar var sgs
 423         enable_deep $sel
 424         popvar sgs
 425         enable_deep_weak $sgs
 426         popvar var
 427     done
 428 }
 429
 430 enable_deep(){
 431     do_enable_deep $*
 432     enable $*
 433 }
 434
 435 enable_deep_weak(){
 436     do_enable_deep $*
 437     enable_weak $*
 438 }
 439
 440 enabled(){
 441     test "${1#!}" = "$1" && op== || op=!=
 442     eval test "x\$${1#!}" $op "xyes"
 443 }
 444
 445 disabled(){
 446     test "${1#!}" = "$1" && op== || op=!=
 447     eval test "x\$${1#!}" $op "xno"
 448 }
 449
 450 enabled_all(){
 451     for opt; do
 452         enabled $opt || return 1
 453     done
 454 }
 455
 456 disabled_all(){
 457     for opt; do
 458         disabled $opt || return 1
 459     done
 460 }
 461
 462 enabled_any(){
 463     for opt; do
 464         enabled $opt && return 0
 465     done
 466 }
 467
 468 disabled_any(){
 469     for opt; do
 470         disabled $opt && return 0
 471     done
 472     return 1
 473 }
 474
 475 set_default(){
 476     for opt; do
 477         eval : \${$opt:=\$${opt}_default}
 478     done
 479 }
 480
 481 is_in(){
 482     value=$1
 483     shift
 484     for var in $*; do
 485         [ $var = $value ] && return 0
 486     done
 487     return 1
 488 }
 489
 490 check_deps(){
 491     for cfg; do
 492         cfg="${cfg#!}"
 493         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 494         disabled ${cfg}_checking && continue
 495         enable ${cfg}_checking
 496
 497         eval dep_all="\$${cfg}_deps"
 498         eval dep_any="\$${cfg}_deps_any"
 499         eval dep_sel="\$${cfg}_select"
 500         eval dep_sgs="\$${cfg}_suggest"
 501         eval dep_ifa="\$${cfg}_if"
 502         eval dep_ifn="\$${cfg}_if_any"
 503
 504         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 505         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 506         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507
 508         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 509         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 510         enabled_all  $dep_all || disable $cfg
 511         enabled_any  $dep_any || disable $cfg
 512         disabled_any $dep_sel && disable $cfg
 513
 514         if enabled $cfg; then
 515             eval dep_extralibs="\$${cfg}_extralibs"
 516             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 517             enable_deep $dep_sel
 518             enable_deep_weak $dep_sgs
 519         fi
 520
 521         disable ${cfg}_checking
 522     done
 523 }
 524
 525 print_config_h(){
 526     enabled $1 && v=1 || v=0
 527     echo "#define $2 $v"
 528 }
 529
 530 print_config_mak(){
 531     enabled $1 && v= || v=!
 532     echo "$v$2=yes"
 533 }
 534
 535 print_config_asm(){
 536     enabled $1 && echo "%define $2"
 537 }
 538
 539 print_config(){
 540     pfx=$1
 541     files=$2
 542     shift 2
 543     for cfg; do
 544         ucname="$(toupper $cfg)"
 545         for f in $files; do
 546             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 547         done
 548     done
 549 }
 550
 551 print_enabled(){
 552     test "$1" = -n && end=" " && shift || end="\n"
 553     suf=$1
 554     shift
 555     for v; do
 556         enabled $v && printf "%s$end" ${v%$suf};
 557     done
 558 }
 559
 560 append(){
 561     var=$1
 562     shift
 563     eval "$var=\"\$$var $*\""
 564 }
 565
 566 prepend(){
 567     var=$1
 568     shift
 569     eval "$var=\"$* \$$var\""
 570 }
 571
 572 add_cppflags(){
 573     append CPPFLAGS $($filter_cppflags "$@")
 574 }
 575
 576 add_cflags(){
 577     append CFLAGS $($filter_cflags "$@")
 578 }
 579
 580 add_asflags(){
 581     append ASFLAGS $($filter_asflags "$@")
 582 }
 583
 584 add_ldflags(){
 585     append LDFLAGS "$@"
 586 }
 587
 588 add_extralibs(){
 589     prepend extralibs "$@"
 590 }
 591
 592 check_cmd(){
 593     log "$@"
 594     "$@" >> $logfile 2>&1
 595 }
 596
 597 check_cc(){
 598     log check_cc "$@"
 599     cat > $TMPC
 600     log_file $TMPC
 601     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 602 }
 603
 604 check_cpp(){
 605     log check_cpp "$@"
 606     cat > $TMPC
 607     log_file $TMPC
 608     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 609 }
 610
 611 check_as(){
 612     log check_as "$@"
 613     cat > $TMPC
 614     log_file $TMPC
 615     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 616 }
 617
 618 check_asm(){
 619     log check_asm "$@"
 620     name="$1"
 621     code="$2"
 622     shift 2
 623     disable $name
 624     check_as "$@" <<EOF && enable $name
 625 void foo(void){ __asm__ volatile($code); }
 626 EOF
 627 }
 628
 629 check_yasm(){
 630     log check_yasm "$@"
 631     echo "$1" > $TMPS
 632     log_file $TMPS
 633     shift 1
 634     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 635 }
 636
 637 check_ld(){
 638     log check_ld "$@"
 639     flags=''
 640     libs=''
 641     for f; do
 642         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 643     done
 644     check_cc $($filter_cflags $flags) || return
 645     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 646 }
 647
 648 check_cppflags(){
 649     log check_cppflags "$@"
 650     set -- $($filter_cppflags "$@")
 651     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 652 int x;
 653 EOF
 654 }
 655
 656 check_cflags(){
 657     log check_cflags "$@"
 658     set -- $($filter_cflags "$@")
 659     check_cc "$@" <<EOF && append CFLAGS "$@"
 660 int x;
 661 EOF
 662 }
 663
 664 test_ldflags(){
 665     log test_ldflags "$@"
 666     check_ld "$@" <<EOF
 667 int main(void){ return 0; }
 668 EOF
 669 }
 670
 671 check_ldflags(){
 672     log check_ldflags "$@"
 673     test_ldflags "$@" && add_ldflags "$@"
 674 }
 675
 676 check_header(){
 677     log check_header "$@"
 678     header=$1
 679     shift
 680     disable_safe $header
 681     check_cpp "$@" <<EOF && enable_safe $header
 682 #include <$header>
 683 int x;
 684 EOF
 685 }
 686
 687 check_func(){
 688     log check_func "$@"
 689     func=$1
 690     shift
 691     disable $func
 692     check_ld "$@" <<EOF && enable $func
 693 extern int $func();
 694 int main(void){ $func(); }
 695 EOF
 696 }
 697
 698 check_mathfunc(){
 699     log check_mathfunc "$@"
 700     func=$1
 701     shift
 702     disable $func
 703     check_ld "$@" <<EOF && enable $func
 704 #include <math.h>
 705 float foo(float f) { return $func(f); }
 706 int main(void){ return 0; }
 707 EOF
 708 }
 709
 710 check_func_headers(){
 711     log check_func_headers "$@"
 712     headers=$1
 713     funcs=$2
 714     shift 2
 715     {
 716         for hdr in $headers; do
 717             echo "#include <$hdr>"
 718         done
 719         for func in $funcs; do
 720             echo "long check_$func(void) { return (long) $func; }"
 721         done
 722         echo "int main(void) { return 0; }"
 723     } | check_ld "$@" && enable $funcs && enable_safe $headers
 724 }
 725
 726 check_cpp_condition(){
 727     log check_cpp_condition "$@"
 728     header=$1
 729     condition=$2
 730     shift 2
 731     check_cpp $($filter_cppflags "$@") <<EOF
 732 #include <$header>
 733 #if !($condition)
 734 #error "unsatisfied condition: $condition"
 735 #endif
 736 EOF
 737 }
 738
 739 check_lib(){
 740     log check_lib "$@"
 741     header="$1"
 742     func="$2"
 743     shift 2
 744     check_header $header && check_func $func "$@" && add_extralibs "$@"
 745 }
 746
 747 check_lib2(){
 748     log check_lib2 "$@"
 749     headers="$1"
 750     funcs="$2"
 751     shift 2
 752     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 753 }
 754
 755 check_pkg_config(){
 756     log check_pkg_config "$@"
 757     pkg="$1"
 758     headers="$2"
 759     funcs="$3"
 760     shift 3
 761     $pkg_config --exists $pkg || return
 762     pkg_cflags=$($pkg_config --cflags $pkg)
 763     pkg_libs=$($pkg_config --libs $pkg)
 764     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 765         set_safe ${pkg}_cflags $pkg_cflags   &&
 766         set_safe ${pkg}_libs   $pkg_libs
 767 }
 768
 769 check_exec(){
 770     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 771 }
 772
 773 check_exec_crash(){
 774     code=$(cat)
 775
 776     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 777     # are safe but may not be available everywhere.  Thus we use
 778     # raise(SIGTERM) instead.  The check is run in a subshell so we
 779     # can redirect the "Terminated" message from the shell.  SIGBUS
 780     # is not defined by standard C so it is used conditionally.
 781
 782     (check_exec "$@") >> $logfile 2>&1 <<EOF
 783 #include <signal.h>
 784 static void sighandler(int sig){
 785     raise(SIGTERM);
 786 }
 787 int main(void){
 788     signal(SIGILL, sighandler);
 789     signal(SIGFPE, sighandler);
 790     signal(SIGSEGV, sighandler);
 791 #ifdef SIGBUS
 792     signal(SIGBUS, sighandler);
 793 #endif
 794     { $code }
 795 }
 796 EOF
 797 }
 798
 799 check_type(){
 800     log check_type "$@"
 801     headers=$1
 802     type=$2
 803     shift 2
 804     disable_safe "$type"
 805     incs=""
 806     for hdr in $headers; do
 807         incs="$incs
 808 #include <$hdr>"
 809     done
 810     check_cc "$@" <<EOF && enable_safe "$type"
 811 $incs
 812 $type v;
 813 EOF
 814 }
 815
 816 check_struct(){
 817     log check_type "$@"
 818     headers=$1
 819     struct=$2
 820     member=$3
 821     shift 3
 822     disable_safe "${struct}_${member}"
 823     incs=""
 824     for hdr in $headers; do
 825         incs="$incs
 826 #include <$hdr>"
 827     done
 828     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 829 $incs
 830 const void *p = &(($struct *)0)->$member;
 831 EOF
 832 }
 833
 834 require(){
 835     name="$1"
 836     header="$2"
 837     func="$3"
 838     shift 3
 839     check_lib $header $func "$@" || die "ERROR: $name not found"
 840 }
 841
 842 require2(){
 843     name="$1"
 844     headers="$2"
 845     func="$3"
 846     shift 3
 847     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 848 }
 849
 850 require_pkg_config(){
 851     pkg="$1"
 852     check_pkg_config "$@" || die "ERROR: $pkg not found"
 853     add_cflags    $(get_safe ${pkg}_cflags)
 854     add_extralibs $(get_safe ${pkg}_libs)
 855 }
 856
 857 check_host_cc(){
 858     log check_host_cc "$@"
 859     cat > $TMPC
 860     log_file $TMPC
 861     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 862 }
 863
 864 check_host_cflags(){
 865     log check_host_cflags "$@"
 866     check_host_cc "$@" <<EOF && append host_cflags "$@"
 867 int x;
 868 EOF
 869 }
 870
 871 apply(){
 872     file=$1
 873     shift
 874     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 875 }
 876
 877 cp_if_changed(){
 878     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 879     mkdir -p "$(dirname $2)"
 880     cp -f "$1" "$2"
 881 }
 882
 883 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 884 # system-dependent things.
 885
 886 COMPONENT_LIST="
 887     bsfs
 888     decoders
 889     demuxers
 890     encoders
 891     filters
 892     hwaccels
 893     indevs
 894     muxers
 895     outdevs
 896     parsers
 897     protocols
 898 "
 899
 900 CONFIG_LIST="
 901     $COMPONENT_LIST
 902     aandct
 903     ac3dsp
 904     avcodec
 905     avdevice
 906     avfilter
 907     avformat
 908     avisynth
 909     bzlib
 910     dct
 911     doc
 912     dwt
 913     dxva2
 914     fastdiv
 915     ffmpeg
 916     ffplay
 917     ffprobe
 918     ffserver
 919     fft
 920     frei0r
 921     golomb
 922     gpl
 923     gray
 924     h264dsp
 925     h264pred
 926     hardcoded_tables
 927     huffman
 928     libdc1394
 929     libdirac
 930     libfaac
 931     libfreetype
 932     libgsm
 933     libmp3lame
 934     libnut
 935     libopencore_amrnb
 936     libopencore_amrwb
 937     libopencv
 938     libopenjpeg
 939     librtmp
 940     libschroedinger
 941     libspeex
 942     libtheora
 943     libvo_aacenc
 944     libvo_amrwbenc
 945     libvorbis
 946     libvpx
 947     libx264
 948     libxavs
 949     libxvid
 950     lpc
 951     lsp
 952     mdct
 953     memalign_hack
 954     mlib
 955     mpegaudiodsp
 956     network
 957     nonfree
 958     pic
 959     postproc
 960     rdft
 961     rtpdec
 962     runtime_cpudetect
 963     shared
 964     sinewin
 965     small
 966     sram
 967     static
 968     swscale
 969     swscale_alpha
 970     thumb
 971     vaapi
 972     vdpau
 973     version3
 974     x11grab
 975     zlib
 976 "
 977
 978 THREADS_LIST='
 979     pthreads
 980     w32threads
 981 '
 982
 983 ARCH_LIST='
 984     alpha
 985     arm
 986     avr32
 987     avr32_ap
 988     avr32_uc
 989     bfin
 990     ia64
 991     m68k
 992     mips
 993     mips64
 994     parisc
 995     ppc
 996     ppc64
 997     s390
 998     sh4
 999     sparc
1000     sparc64
1001     tomi
1002     x86
1003     x86_32
1004     x86_64
1005 '
1006
1007 ARCH_EXT_LIST='
1008     altivec
1009     amd3dnow
1010     amd3dnowext
1011     armv5te
1012     armv6
1013     armv6t2
1014     armvfp
1015     avx
1016     iwmmxt
1017     mmi
1018     mmx
1019     mmx2
1020     neon
1021     ppc4xx
1022     sse
1023     ssse3
1024     vfpv3
1025     vis
1026 '
1027
1028 HAVE_LIST_PUB='
1029     bigendian
1030     fast_unaligned
1031 '
1032
1033 HAVE_LIST="
1034     $ARCH_EXT_LIST
1035     $HAVE_LIST_PUB
1036     $THREADS_LIST
1037     aligned_stack
1038     alsa_asoundlib_h
1039     altivec_h
1040     arpa_inet_h
1041     attribute_may_alias
1042     attribute_packed
1043     bswap
1044     closesocket
1045     cmov
1046     dcbzl
1047     dev_bktr_ioctl_bt848_h
1048     dev_bktr_ioctl_meteor_h
1049     dev_ic_bt8xx_h
1050     dev_video_meteor_ioctl_meteor_h
1051     dev_video_bktr_ioctl_bt848_h
1052     dlfcn_h
1053     dlopen
1054     dos_paths
1055     ebp_available
1056     ebx_available
1057     exp2
1058     exp2f
1059     fast_64bit
1060     fast_clz
1061     fast_cmov
1062     fcntl
1063     fork
1064     getaddrinfo
1065     gethrtime
1066     GetProcessMemoryInfo
1067     GetProcessTimes
1068     getrusage
1069     gnu_as
1070     struct_rusage_ru_maxrss
1071     ibm_asm
1072     inet_aton
1073     inline_asm
1074     isatty
1075     ldbrx
1076     libdc1394_1
1077     libdc1394_2
1078     llrint
1079     llrintf
1080     local_aligned_16
1081     local_aligned_8
1082     localtime_r
1083     log2
1084     log2f
1085     loongson
1086     lrint
1087     lrintf
1088     lzo1x_999_compress
1089     machine_ioctl_bt848_h
1090     machine_ioctl_meteor_h
1091     malloc_h
1092     MapViewOfFile
1093     memalign
1094     mkstemp
1095     mmap
1096     pld
1097     posix_memalign
1098     round
1099     roundf
1100     sdl
1101     sdl_video_size
1102     setmode
1103     sndio_h
1104     socklen_t
1105     soundcard_h
1106     poll_h
1107     setrlimit
1108     strerror_r
1109     strtok_r
1110     struct_addrinfo
1111     struct_ipv6_mreq
1112     struct_sockaddr_in6
1113     struct_sockaddr_sa_len
1114     struct_sockaddr_storage
1115     symver
1116     symver_gnu_asm
1117     symver_asm_label
1118     sys_mman_h
1119     sys_resource_h
1120     sys_select_h
1121     sys_soundcard_h
1122     sys_videoio_h
1123     threads
1124     trunc
1125     truncf
1126     vfp_args
1127     VirtualAlloc
1128     winsock2_h
1129     xform_asm
1130     xmm_clobbers
1131     yasm
1132 "
1133
1134 # options emitted with CONFIG_ prefix but not available on command line
1135 CONFIG_EXTRA="
1136     avutil
1137     gplv3
1138     lgplv3
1139 "
1140
1141 CMDLINE_SELECT="
1142     $ARCH_EXT_LIST
1143     $CONFIG_LIST
1144     $THREADS_LIST
1145     asm
1146     cross_compile
1147     debug
1148     extra_warnings
1149     logging
1150     optimizations
1151     symver
1152     yasm
1153 "
1154
1155 PATHS_LIST='
1156     bindir
1157     datadir
1158     incdir
1159     libdir
1160     mandir
1161     prefix
1162     shlibdir
1163 '
1164
1165 CMDLINE_SET="
1166     $PATHS_LIST
1167     ar
1168     arch
1169     as
1170     build_suffix
1171     cc
1172     cpu
1173     cross_prefix
1174     dep_cc
1175     extra_version
1176     host_cc
1177     host_cflags
1178     host_ldflags
1179     host_libs
1180     host_os
1181     ld
1182     logfile
1183     malloc_prefix
1184     nm
1185     optflags
1186     pkg_config
1187     samples
1188     sysinclude
1189     sysroot
1190     target_exec
1191     target_os
1192     target_path
1193 "
1194
1195 CMDLINE_APPEND="
1196     extra_cflags
1197 "
1198
1199 # code dependency declarations
1200
1201 # architecture extensions
1202
1203 armv5te_deps="arm"
1204 armv6_deps="arm"
1205 armv6t2_deps="arm"
1206 armvfp_deps="arm"
1207 iwmmxt_deps="arm"
1208 neon_deps="arm"
1209 vfpv3_deps="armvfp"
1210
1211 mmi_deps="mips"
1212
1213 altivec_deps="ppc"
1214 ppc4xx_deps="ppc"
1215
1216 vis_deps="sparc"
1217
1218 x86_64_suggest="cmov fast_cmov"
1219 amd3dnow_deps="mmx"
1220 amd3dnowext_deps="amd3dnow"
1221 mmx_deps="x86"
1222 mmx2_deps="mmx"
1223 sse_deps="mmx"
1224 ssse3_deps="sse"
1225 avx_deps="ssse3"
1226
1227 aligned_stack_if_any="ppc x86"
1228 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1229 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1230 fast_unaligned_if_any="armv6 ppc x86"
1231
1232 need_memalign="altivec neon sse"
1233 inline_asm_deps="!tms470"
1234
1235 symver_if_any="symver_asm_label symver_gnu_asm"
1236
1237 # subsystems
1238 dct_select="rdft"
1239 mdct_select="fft"
1240 rdft_select="fft"
1241 mpegaudiodsp_select="dct"
1242
1243 # decoders / encoders / hardware accelerators
1244 aac_decoder_select="mdct sinewin"
1245 aac_encoder_select="mdct sinewin"
1246 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1247 ac3_decoder_select="mdct ac3dsp ac3_parser"
1248 ac3_encoder_select="mdct ac3dsp"
1249 ac3_fixed_encoder_select="mdct ac3dsp"
1250 alac_encoder_select="lpc"
1251 amrnb_decoder_select="lsp"
1252 amrwb_decoder_select="lsp"
1253 atrac1_decoder_select="mdct sinewin"
1254 atrac3_decoder_select="mdct"
1255 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1256 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1257 cavs_decoder_select="golomb"
1258 cook_decoder_select="mdct sinewin"
1259 cscd_decoder_suggest="zlib"
1260 dca_decoder_select="mdct"
1261 dnxhd_encoder_select="aandct"
1262 dxa_decoder_select="zlib"
1263 eac3_decoder_select="ac3_decoder"
1264 eac3_encoder_select="mdct ac3dsp"
1265 eamad_decoder_select="aandct"
1266 eatgq_decoder_select="aandct"
1267 eatqi_decoder_select="aandct"
1268 ffv1_decoder_select="golomb"
1269 flac_decoder_select="golomb"
1270 flac_encoder_select="golomb lpc"
1271 flashsv_decoder_select="zlib"
1272 flashsv_encoder_select="zlib"
1273 flv_decoder_select="h263_decoder"
1274 flv_encoder_select="h263_encoder"
1275 fraps_decoder_select="huffman"
1276 h261_encoder_select="aandct"
1277 h263_decoder_select="h263_parser"
1278 h263_encoder_select="aandct"
1279 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1280 h263i_decoder_select="h263_decoder"
1281 h263p_encoder_select="h263_encoder"
1282 h264_decoder_select="golomb h264dsp h264pred"
1283 h264_dxva2_hwaccel_deps="dxva2api_h"
1284 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1285 h264_vaapi_hwaccel_select="vaapi"
1286 h264_vdpau_decoder_select="vdpau h264_decoder"
1287 imc_decoder_select="fft mdct sinewin"
1288 jpegls_decoder_select="golomb"
1289 jpegls_encoder_select="golomb"
1290 ljpeg_encoder_select="aandct"
1291 loco_decoder_select="golomb"
1292 mjpeg_encoder_select="aandct"
1293 mlp_decoder_select="mlp_parser"
1294 mp1_decoder_select="mpegaudiodsp"
1295 mp2_decoder_select="mpegaudiodsp"
1296 mp3adu_decoder_select="mpegaudiodsp"
1297 mp3_decoder_select="mpegaudiodsp"
1298 mp3on4_decoder_select="mpegaudiodsp"
1299 mp1float_decoder_select="mpegaudiodsp"
1300 mp2float_decoder_select="mpegaudiodsp"
1301 mp3adufloat_decoder_select="mpegaudiodsp"
1302 mp3float_decoder_select="mpegaudiodsp"
1303 mp3on4float_decoder_select="mpegaudiodsp"
1304 mpeg1video_encoder_select="aandct"
1305 mpeg2video_encoder_select="aandct"
1306 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1307 mpeg4_encoder_select="h263_encoder"
1308 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1309 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1310 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1311 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1312 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1313 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1314 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1315 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1316 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1317 msmpeg4v1_decoder_select="h263_decoder"
1318 msmpeg4v1_encoder_select="h263_encoder"
1319 msmpeg4v2_decoder_select="h263_decoder"
1320 msmpeg4v2_encoder_select="h263_encoder"
1321 msmpeg4v3_decoder_select="h263_decoder"
1322 msmpeg4v3_encoder_select="h263_encoder"
1323 nellymoser_decoder_select="mdct sinewin"
1324 nellymoser_encoder_select="mdct sinewin"
1325 png_decoder_select="zlib"
1326 png_encoder_select="zlib"
1327 qcelp_decoder_select="lsp"
1328 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1329 ra_144_encoder_select="lpc"
1330 rv10_decoder_select="h263_decoder"
1331 rv10_encoder_select="h263_encoder"
1332 rv20_decoder_select="h263_decoder"
1333 rv20_encoder_select="h263_encoder"
1334 rv30_decoder_select="golomb h264pred"
1335 rv40_decoder_select="golomb h264pred"
1336 shorten_decoder_select="golomb"
1337 sipr_decoder_select="lsp"
1338 snow_decoder_select="dwt"
1339 snow_encoder_select="aandct dwt"
1340 svq1_encoder_select="aandct"
1341 svq3_decoder_select="golomb h264dsp h264pred"
1342 svq3_decoder_suggest="zlib"
1343 theora_decoder_select="vp3_decoder"
1344 tiff_decoder_suggest="zlib"
1345 tiff_encoder_suggest="zlib"
1346 truehd_decoder_select="mlp_decoder"
1347 tscc_decoder_select="zlib"
1348 twinvq_decoder_select="mdct lsp sinewin"
1349 vc1_decoder_select="h263_decoder"
1350 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1351 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1352 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1353 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1354 vorbis_decoder_select="mdct"
1355 vorbis_encoder_select="mdct"
1356 vp6_decoder_select="huffman"
1357 vp6a_decoder_select="vp6_decoder"
1358 vp6f_decoder_select="vp6_decoder"
1359 vp8_decoder_select="h264pred"
1360 wmapro_decoder_select="mdct sinewin"
1361 wmav1_decoder_select="mdct sinewin"
1362 wmav1_encoder_select="mdct sinewin"
1363 wmav2_decoder_select="mdct sinewin"
1364 wmav2_encoder_select="mdct sinewin"
1365 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1366 wmv1_decoder_select="h263_decoder"
1367 wmv1_encoder_select="h263_encoder"
1368 wmv2_decoder_select="h263_decoder"
1369 wmv2_encoder_select="h263_encoder"
1370 wmv3_decoder_select="vc1_decoder"
1371 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1372 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1373 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1374 zlib_decoder_select="zlib"
1375 zlib_encoder_select="zlib"
1376 zmbv_decoder_select="zlib"
1377 zmbv_encoder_select="zlib"
1378
1379 vaapi_deps="va_va_h"
1380 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1381
1382 # parsers
1383 h264_parser_select="golomb h264dsp h264pred"
1384
1385 # external libraries
1386 libdirac_decoder_deps="libdirac !libschroedinger"
1387 libdirac_encoder_deps="libdirac"
1388 libfaac_encoder_deps="libfaac"
1389 libgsm_decoder_deps="libgsm"
1390 libgsm_encoder_deps="libgsm"
1391 libgsm_ms_decoder_deps="libgsm"
1392 libgsm_ms_encoder_deps="libgsm"
1393 libmp3lame_encoder_deps="libmp3lame"
1394 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1395 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1396 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1397 libopenjpeg_decoder_deps="libopenjpeg"
1398 libschroedinger_decoder_deps="libschroedinger"
1399 libschroedinger_encoder_deps="libschroedinger"
1400 libspeex_decoder_deps="libspeex"
1401 libtheora_encoder_deps="libtheora"
1402 libvo_aacenc_encoder_deps="libvo_aacenc"
1403 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1404 libvorbis_encoder_deps="libvorbis"
1405 libvpx_decoder_deps="libvpx"
1406 libvpx_encoder_deps="libvpx"
1407 libx264_encoder_deps="libx264"
1408 libxavs_encoder_deps="libxavs"
1409 libxvid_encoder_deps="libxvid"
1410
1411 # demuxers / muxers
1412 ac3_demuxer_select="ac3_parser"
1413 asf_stream_muxer_select="asf_muxer"
1414 avisynth_demuxer_deps="avisynth"
1415 dirac_demuxer_select="dirac_parser"
1416 eac3_demuxer_select="ac3_parser"
1417 flac_demuxer_select="flac_parser"
1418 ipod_muxer_select="mov_muxer"
1419 libnut_demuxer_deps="libnut"
1420 libnut_muxer_deps="libnut"
1421 matroska_audio_muxer_select="matroska_muxer"
1422 matroska_demuxer_suggest="zlib bzlib"
1423 mov_demuxer_suggest="zlib"
1424 mp3_demuxer_select="mpegaudio_parser"
1425 mp4_muxer_select="mov_muxer"
1426 mpegtsraw_demuxer_select="mpegts_demuxer"
1427 mxf_d10_muxer_select="mxf_muxer"
1428 ogg_demuxer_select="golomb"
1429 psp_muxer_select="mov_muxer"
1430 rtp_demuxer_select="sdp_demuxer"
1431 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1432 rtsp_demuxer_select="http_protocol rtpdec"
1433 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1434 sap_demuxer_select="sdp_demuxer"
1435 sap_muxer_select="rtp_muxer rtp_protocol"
1436 sdp_demuxer_select="rtpdec"
1437 spdif_muxer_select="aac_parser"
1438 tg2_muxer_select="mov_muxer"
1439 tgp_muxer_select="mov_muxer"
1440 w64_demuxer_deps="wav_demuxer"
1441
1442 # indevs / outdevs
1443 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1444 alsa_outdev_deps="alsa_asoundlib_h"
1445 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1446 dv1394_indev_deps="dv1394 dv_demuxer"
1447 fbdev_indev_deps="linux_fb_h"
1448 jack_indev_deps="jack_jack_h"
1449 libdc1394_indev_deps="libdc1394"
1450 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1451 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1452 sndio_indev_deps="sndio_h"
1453 sndio_outdev_deps="sndio_h"
1454 v4l_indev_deps="linux_videodev_h"
1455 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1456 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1457 vfwcap_indev_extralibs="-lavicap32"
1458 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1459 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1460
1461 # protocols
1462 gopher_protocol_deps="network"
1463 http_protocol_deps="network"
1464 http_protocol_select="tcp_protocol"
1465 mmsh_protocol_select="http_protocol"
1466 mmst_protocol_deps="network"
1467 rtmp_protocol_select="tcp_protocol"
1468 rtp_protocol_select="udp_protocol"
1469 tcp_protocol_deps="network"
1470 udp_protocol_deps="network"
1471
1472 # filters
1473 blackframe_filter_deps="gpl"
1474 cropdetect_filter_deps="gpl"
1475 drawtext_filter_deps="libfreetype"
1476 frei0r_filter_deps="frei0r dlopen strtok_r"
1477 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1478 hqdn3d_filter_deps="gpl"
1479 ocv_filter_deps="libopencv"
1480 scale_filter_deps="swscale"
1481 yadif_filter_deps="gpl"
1482
1483 # libraries
1484 avdevice_deps="avcodec avformat"
1485 avformat_deps="avcodec"
1486 postproc_deps="gpl"
1487
1488 # programs
1489 ffmpeg_deps="avcodec avformat swscale"
1490 ffmpeg_select="buffer_filter"
1491 ffplay_deps="avcodec avformat swscale sdl"
1492 ffplay_select="rdft"
1493 ffprobe_deps="avcodec avformat"
1494 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1495 ffserver_extralibs='$ldl'
1496
1497 doc_deps="texi2html"
1498
1499 # tests
1500
1501 test_deps(){
1502     suf1=$1
1503     suf2=$2
1504     shift 2
1505     for v; do
1506         dep=${v%=*}
1507         tests=${v#*=}
1508         for name in ${tests}; do
1509             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1510         done
1511     done
1512 }
1513
1514 test_deps _encoder _decoder                                             \
1515     adpcm_g726=g726                                                     \
1516     adpcm_ima_qt                                                        \
1517     adpcm_ima_wav                                                       \
1518     adpcm_ms                                                            \
1519     adpcm_swf                                                           \
1520     adpcm_yamaha=adpcm_yam                                              \
1521     alac                                                                \
1522     asv1                                                                \
1523     asv2                                                                \
1524     bmp                                                                 \
1525     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1526     dvvideo="dv dv50"                                                   \
1527     ffv1                                                                \
1528     flac                                                                \
1529     flashsv                                                             \
1530     flv                                                                 \
1531     gif                                                                 \
1532     h261                                                                \
1533     h263="h263 h263p"                                                   \
1534     huffyuv                                                             \
1535     jpegls                                                              \
1536     mjpeg="jpg mjpeg ljpeg"                                             \
1537     mp2                                                                 \
1538     mpeg1video="mpeg mpeg1b"                                            \
1539     mpeg2video="mpeg2 mpeg2thread"                                      \
1540     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1541     msmpeg4v3=msmpeg4                                                   \
1542     msmpeg4v2                                                           \
1543     pbm=pbmpipe                                                         \
1544     pcx                                                                 \
1545     pgm="pgm pgmpipe"                                                   \
1546     png                                                                 \
1547     ppm="ppm ppmpipe"                                                   \
1548     rawvideo="rgb yuv"                                                  \
1549     roq                                                                 \
1550     rv10                                                                \
1551     rv20                                                                \
1552     sgi                                                                 \
1553     snow="snow snowll"                                                  \
1554     svq1                                                                \
1555     targa=tga                                                           \
1556     tiff                                                                \
1557     wmav1                                                               \
1558     wmav2                                                               \
1559     wmv1                                                                \
1560     wmv2                                                                \
1561
1562 test_deps _muxer _demuxer                                               \
1563     aiff                                                                \
1564     pcm_alaw=alaw                                                       \
1565     asf                                                                 \
1566     au                                                                  \
1567     avi                                                                 \
1568     dv=dv_fmt                                                           \
1569     ffm                                                                 \
1570     flv=flv_fmt                                                         \
1571     gxf                                                                 \
1572     matroska=mkv                                                        \
1573     mmf                                                                 \
1574     mov                                                                 \
1575     pcm_mulaw=mulaw                                                     \
1576     mxf                                                                 \
1577     nut                                                                 \
1578     ogg                                                                 \
1579     rawvideo=pixfmt                                                     \
1580     rm                                                                  \
1581     swf                                                                 \
1582     mpegts=ts                                                           \
1583     voc                                                                 \
1584     wav                                                                 \
1585     yuv4mpegpipe=yuv4mpeg                                               \
1586
1587 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1588 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1589
1590 # default parameters
1591
1592 logfile="config.log"
1593
1594 # installation paths
1595 prefix_default="/usr/local"
1596 bindir_default='${prefix}/bin'
1597 datadir_default='${prefix}/share/ffmpeg'
1598 incdir_default='${prefix}/include'
1599 libdir_default='${prefix}/lib'
1600 mandir_default='${prefix}/share/man'
1601 shlibdir_default="$libdir_default"
1602
1603 # toolchain
1604 ar_default="ar"
1605 cc_default="gcc"
1606 cc_version=\"unknown\"
1607 host_cc_default="gcc"
1608 ln_s="ln -sf"
1609 nm_default="nm"
1610 objformat="elf"
1611 pkg_config_default=pkg-config
1612 ranlib="ranlib"
1613 yasmexe="yasm"
1614 nogas=":"
1615
1616 nm_opts='-g'
1617
1618 # machine
1619 arch_default=$(uname -m)
1620 cpu="generic"
1621
1622 # OS
1623 target_os_default=$(tolower $(uname -s))
1624 host_os=$target_os_default
1625
1626 # configurable options
1627 enable avcodec
1628 enable avdevice
1629 enable avfilter
1630 enable avformat
1631 enable avutil
1632 enable asm
1633 enable debug
1634 enable doc
1635 enable fastdiv
1636 enable ffmpeg
1637 enable ffplay
1638 enable ffprobe
1639 enable ffserver
1640 enable network
1641 enable optimizations
1642 enable postproc
1643 enable protocols
1644 enable static
1645 enable swscale
1646 enable swscale_alpha
1647
1648 # build settings
1649 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1650 FFSERVERLDFLAGS=-Wl,-E
1651 LIBPREF="lib"
1652 LIBSUF=".a"
1653 FULLNAME='$(NAME)$(BUILDSUF)'
1654 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1655 SLIBPREF="lib"
1656 SLIBSUF=".so"
1657 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1658 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1659 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1660 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1661
1662 AS_O='-o $@'
1663 CC_O='-o $@'
1664
1665 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1666 host_libs='-lm'
1667
1668 target_path='$(CURDIR)'
1669
1670 # since the object filename is not given with the -MM flag, the compiler
1671 # is only able to print the basename, and we must add the path ourselves
1672 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1673 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1674
1675 # find source path
1676 if test -f configure; then
1677     source_path=.
1678 else
1679     source_path=$(cd $(dirname "$0"); pwd)
1680     echo "$source_path" | grep -q '[[:blank:]]' &&
1681         die "Out of tree builds are impossible with whitespace in source path."
1682     test -e "$source_path/config.h" &&
1683         die "Out of tree builds are impossible with config.h in source dir."
1684 fi
1685
1686 for v in "$@"; do
1687     r=${v#*=}
1688     l=${v%"$r"}
1689     r=$(sh_quote "$r")
1690     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1691 done
1692
1693 find_things(){
1694     thing=$1
1695     pattern=$2
1696     file=$source_path/$3
1697     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1698 }
1699
1700 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1701 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1702 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1703 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1704 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1705 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1706 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1707 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1708 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1709 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1710 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1711
1712 find_tests(){
1713     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1714 }
1715
1716 ACODEC_TESTS=$(find_tests acodec)
1717 VCODEC_TESTS=$(find_tests vsynth1)
1718 LAVF_TESTS=$(find_tests lavf)
1719 LAVFI_TESTS=$(find_tests lavfi)
1720 SEEK_TESTS=$(find_tests seek seek_)
1721
1722 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1723
1724 for n in $COMPONENT_LIST; do
1725     v=$(toupper ${n%s})_LIST
1726     eval enable \$$v
1727     eval ${n}_if_any="\$$v"
1728 done
1729
1730 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1731
1732 die_unknown(){
1733     echo "Unknown option \"$1\"."
1734     echo "See $0 --help for available options."
1735     exit 1
1736 }
1737
1738 show_list() {
1739     suffix=_$1
1740     shift
1741     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1742     exit 0
1743 }
1744
1745 for opt do
1746     optval="${opt#*=}"
1747     case "$opt" in
1748     --extra-ldflags=*) add_ldflags $optval
1749     ;;
1750     --extra-libs=*) add_extralibs $optval
1751     ;;
1752     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1753     ;;
1754     --enable-debug=*) debuglevel="$optval"
1755     ;;
1756     --disable-everything)
1757     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1758     ;;
1759     --enable-*=*|--disable-*=*)
1760     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1761     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1762     eval list=\$$(toupper $thing)_LIST
1763     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1764     $action $(filter "$name" $list)
1765     ;;
1766     --enable-?*|--disable-?*)
1767     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1768     if is_in $option $COMPONENT_LIST; then
1769         test $action = disable && action=unset
1770         eval $action \$$(toupper ${option%s})_LIST
1771     elif is_in $option $CMDLINE_SELECT; then
1772         $action $option
1773     else
1774         die_unknown $opt
1775     fi
1776     ;;
1777     --list-*)
1778         NAME="${opt#--list-}"
1779         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1780         NAME=${NAME%s}
1781         eval show_list $NAME \$$(toupper $NAME)_LIST
1782     ;;
1783     --help|-h) show_help
1784     ;;
1785     *)
1786     optname="${opt%%=*}"
1787     optname="${optname#--}"
1788     optname=$(echo "$optname" | sed 's/-/_/g')
1789     if is_in $optname $CMDLINE_SET; then
1790         eval $optname='$optval'
1791     elif is_in $optname $CMDLINE_APPEND; then
1792         append $optname "$optval"
1793     else
1794          die_unknown $opt
1795     fi
1796     ;;
1797     esac
1798 done
1799
1800 disabled logging && logfile=/dev/null
1801
1802 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1803 set >> $logfile
1804
1805 test -n "$cross_prefix" && enable cross_compile
1806
1807 if enabled cross_compile; then
1808     test -n "$arch" && test -n "$target_os" ||
1809         die "Must specify target arch and OS when cross-compiling"
1810 fi
1811
1812 set_default arch target_os
1813
1814 ar_default="${cross_prefix}${ar_default}"
1815 cc_default="${cross_prefix}${cc_default}"
1816 nm_default="${cross_prefix}${nm_default}"
1817 pkg_config_default="${cross_prefix}${pkg_config_default}"
1818 ranlib="${cross_prefix}${ranlib}"
1819
1820 sysinclude_default="${sysroot}/usr/include"
1821
1822 set_default cc nm pkg_config sysinclude
1823 enabled cross_compile || host_cc_default=$cc
1824 set_default host_cc
1825
1826 if ! $pkg_config --version >/dev/null 2>&1; then
1827     warn "$pkg_config not found, library detection may fail."
1828     pkg_config=false
1829 fi
1830
1831 exesuf() {
1832     case $1 in
1833         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1834     esac
1835 }
1836
1837 EXESUF=$(exesuf $target_os)
1838 HOSTEXESUF=$(exesuf $host_os)
1839
1840 # set temporary file name
1841 : ${TMPDIR:=$TEMPDIR}
1842 : ${TMPDIR:=$TMP}
1843 : ${TMPDIR:=/tmp}
1844
1845 if ! check_cmd mktemp -u XXXXXX; then
1846     # simple replacement for missing mktemp
1847     # NOT SAFE FOR GENERAL USE
1848     mktemp(){
1849         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1850     }
1851 fi
1852
1853 tmpfile(){
1854     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1855         (set -C; exec > $tmp) 2>/dev/null ||
1856         die "Unable to create temporary file in $TMPDIR."
1857     append TMPFILES $tmp
1858     eval $1=$tmp
1859 }
1860
1861 trap 'rm -f -- $TMPFILES' EXIT
1862
1863 tmpfile TMPC  .c
1864 tmpfile TMPE  $EXESUF
1865 tmpfile TMPH  .h
1866 tmpfile TMPO  .o
1867 tmpfile TMPS  .S
1868 tmpfile TMPV  .ver
1869 tmpfile TMPSH .sh
1870 tmpfile TMPASM .asm
1871
1872 unset -f mktemp
1873
1874 chmod +x $TMPE
1875
1876 # make sure we can execute files in $TMPDIR
1877 cat > $TMPSH 2>> $logfile <<EOF
1878 #! /bin/sh
1879 EOF
1880 chmod +x $TMPSH >> $logfile 2>&1
1881 if ! $TMPSH >> $logfile 2>&1; then
1882     cat <<EOF
1883 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1884 variable to another directory and make sure that it is not mounted noexec.
1885 EOF
1886     die "Sanity test failed."
1887 fi
1888
1889 filter_cflags=echo
1890 filter_cppflags=echo
1891 filter_asflags=echo
1892
1893 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1894     cc_type=llvm_gcc
1895     cc_version=__VERSION__
1896     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1897     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1898     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1899     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1900     speed_cflags='-O3'
1901     size_cflags='-Os'
1902 elif $cc -v 2>&1 | grep -qi ^gcc; then
1903     cc_type=gcc
1904     cc_version=__VERSION__
1905     gcc_version=$($cc --version | head -n1)
1906     gcc_basever=$($cc -dumpversion)
1907     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1908     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1909     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1910     if ! $cc -dumpversion | grep -q '^2\.'; then
1911         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1912         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1913     fi
1914     speed_cflags='-O3'
1915     size_cflags='-Os'
1916 elif $cc --version 2>/dev/null | grep -q Intel; then
1917     cc_type=icc
1918     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1919     cc_ident=$($cc --version | head -n1)
1920     icc_version=$($cc -dumpversion)
1921     CC_DEPFLAGS='-MMD'
1922     AS_DEPFLAGS='-MMD'
1923     speed_cflags='-O3'
1924     size_cflags='-Os'
1925     noopt_cflags='-O1'
1926 elif $cc -v 2>&1 | grep -q xlc; then
1927     cc_type=xlc
1928     cc_version="AV_STRINGIFY(__IBMC__)"
1929     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1930     speed_cflags='-O5'
1931     size_cflags='-O5 -qcompact'
1932 elif $cc -V 2>/dev/null | grep -q Compaq; then
1933     cc_type=ccc
1934     cc_version="AV_STRINGIFY(__DECC_VER)"
1935     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1936     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1937     debuglevel=3
1938     add_ldflags -Wl,-z,now # calls to libots crash without this
1939     speed_cflags='-fast'
1940     size_cflags='-O1'
1941 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1942     test -d "$sysroot" || die "No valid sysroot specified."
1943     cc_type=armcc
1944     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1945     cc_ident=$($cc --vsn | head -n1)
1946     armcc_conf="$PWD/armcc.conf"
1947     $cc --arm_linux_configure                 \
1948         --arm_linux_config_file="$armcc_conf" \
1949         --configure_sysroot="$sysroot"        \
1950         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1951         die "Error creating armcc configuration file."
1952     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1953     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1954     as_default="${cross_prefix}gcc"
1955     CC_DEPFLAGS='-MMD'
1956     AS_DEPFLAGS='-MMD'
1957     speed_cflags='-O3'
1958     size_cflags='-Os'
1959     filter_asflags="filter_out -W${armcc_opt}*"
1960 elif $cc -version 2>/dev/null | grep -q TMS470; then
1961     cc_type=tms470
1962     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1963     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1964     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1965     CC_O='-fr=$(@D)'
1966     as_default="${cross_prefix}gcc"
1967     ld_default="${cross_prefix}gcc"
1968     TMPO=$(basename $TMPC .c).o
1969     append TMPFILES $TMPO
1970     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1971     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1972     AS_DEPFLAGS='-MMD'
1973     speed_cflags='-O3 -mf=5'
1974     size_cflags='-O3 -mf=2'
1975     filter_cflags=tms470_flags
1976     tms470_flags(){
1977         for flag; do
1978             case $flag in
1979                 -march=*|-mcpu=*)
1980                     case "${flag#*=}" in
1981                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1982                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1983                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1984                         armv6*|arm11*)          echo -mv=6   ;;
1985                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1986                                                 echo -mv=5e  ;;
1987                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1988                     esac
1989                     ;;
1990                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1991                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1992                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1993                 -msoft-float)   echo --float_support=vfplib       ;;
1994                 -O[0-3]|-mf=*)  echo $flag                        ;;
1995                 -g)             echo -g -mn                       ;;
1996                 -pds=*)         echo $flag                        ;;
1997             esac
1998         done
1999     }
2000 elif $cc -v 2>&1 | grep -q clang; then
2001     cc_type=clang
2002     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2003         cc_version=__clang_version__ || cc_version=__VERSION__
2004     cc_ident=$($cc --version | head -n1)
2005     CC_DEPFLAGS='-MMD'
2006     AS_DEPFLAGS='-MMD'
2007     speed_cflags='-O3'
2008     size_cflags='-Os'
2009 elif $cc -V 2>&1 | grep -q Sun; then
2010     cc_type=suncc
2011     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2012     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2013     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2014     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2015     speed_cflags='-O5'
2016     size_cflags='-O5 -xspace'
2017     filter_cflags=suncc_flags
2018     suncc_flags(){
2019         for flag; do
2020             case $flag in
2021                 -march=*|-mcpu=*)
2022                     case "${flag#*=}" in
2023                         native)                   echo -xtarget=native       ;;
2024                         v9|niagara)               echo -xarch=sparc          ;;
2025                         ultrasparc)               echo -xarch=sparcvis       ;;
2026                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2027                         i586|pentium)             echo -xchip=pentium        ;;
2028                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2029                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2030                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2031                         pentium4*)          echo -xtarget=pentium4           ;;
2032                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2033                         *-sse3)             echo -xarch=sse3                 ;;
2034                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2035                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2036                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2037                         k8|opteron|athlon64|athlon-fx)
2038                                                   echo -xarch=sse2a          ;;
2039                         athlon*)                  echo -xarch=pentium_proa   ;;
2040                     esac
2041                     ;;
2042                 -std=c99)             echo -xc99              ;;
2043                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2044                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2045                 -W*,*)                echo $flag              ;;
2046                 -f*-*|-W*)                                    ;;
2047                 *)                    echo $flag              ;;
2048             esac
2049         done
2050     }
2051 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2052     cc_type=pathscale
2053     cc_version=__PATHSCALE__
2054     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2055     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2056     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2057     speed_cflags='-O2'
2058     size_cflags='-Os'
2059     filter_cflags='filter_out -Wdisabled-optimization'
2060 elif $cc -v 2>&1 | grep -q Open64; then
2061     cc_type=open64
2062     cc_version=__OPEN64__
2063     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2064     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2065     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2066     speed_cflags='-O2'
2067     size_cflags='-Os'
2068     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2069 fi
2070
2071 test -n "$cc_type" && enable $cc_type ||
2072     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2073
2074 : ${as_default:=$cc}
2075 : ${dep_cc_default:=$cc}
2076 : ${ld_default:=$cc}
2077 set_default ar as dep_cc ld
2078
2079 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2080 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2081
2082 add_cflags $extra_cflags
2083 add_asflags $extra_cflags
2084
2085 if test -n "$sysroot"; then
2086     case "$cc_type" in
2087         gcc|llvm_gcc|clang)
2088             add_cppflags --sysroot="$sysroot"
2089             add_ldflags --sysroot="$sysroot"
2090         ;;
2091         tms470)
2092             add_cppflags -I"$sysinclude"
2093             add_ldflags  --sysroot="$sysroot"
2094         ;;
2095     esac
2096 fi
2097
2098 if test "$cpu" = host; then
2099     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2100
2101     case "$cc_type" in
2102         gcc|llvm_gcc)
2103             check_native(){
2104                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2105                 sed -n "/$1=/{
2106                             s/.*$1=\\([^ ]*\\).*/\\1/
2107                             p
2108                             q
2109                         }" $TMPE
2110             }
2111             cpu=$(check_native -march || check_native -mcpu)
2112         ;;
2113     esac
2114
2115     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2116 fi
2117
2118 # Deal with common $arch aliases
2119 case "$arch" in
2120     arm*)
2121         arch="arm"
2122     ;;
2123     mips|mipsel|IP*)
2124         arch="mips"
2125     ;;
2126     mips64*)
2127         arch="mips"
2128         subarch="mips64"
2129     ;;
2130     parisc|hppa)
2131         arch="parisc"
2132     ;;
2133     parisc64|hppa64)
2134         arch="parisc"
2135         subarch="parisc64"
2136     ;;
2137     "Power Macintosh"|ppc|powerpc)
2138         arch="ppc"
2139     ;;
2140     ppc64|powerpc64)
2141         arch="ppc"
2142         subarch="ppc64"
2143     ;;
2144     s390|s390x)
2145         arch="s390"
2146     ;;
2147     sh4|sh)
2148         arch="sh4"
2149     ;;
2150     sun4u|sparc64)
2151         arch="sparc"
2152         subarch="sparc64"
2153     ;;
2154     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2155         arch="x86"
2156     ;;
2157 esac
2158
2159 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2160 enable $arch
2161
2162 # Add processor-specific flags
2163 if test "$cpu" = generic; then
2164     : do nothing
2165 elif enabled ppc; then
2166
2167     case $(tolower $cpu) in
2168         601|ppc601|powerpc601)
2169             cpuflags="-mcpu=601"
2170             disable altivec
2171         ;;
2172         603*|ppc603*|powerpc603*)
2173             cpuflags="-mcpu=603"
2174             disable altivec
2175         ;;
2176         604*|ppc604*|powerpc604*)
2177             cpuflags="-mcpu=604"
2178             disable altivec
2179         ;;
2180         g3|75*|ppc75*|powerpc75*)
2181             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2182             disable altivec
2183         ;;
2184         g4|745*|ppc745*|powerpc745*)
2185             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2186         ;;
2187         74*|ppc74*|powerpc74*)
2188             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2189         ;;
2190         g5|970|ppc970|powerpc970|power4*)
2191             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2192         ;;
2193         cell)
2194             cpuflags="-mcpu=cell"
2195             enable ldbrx
2196         ;;
2197         e500v2)
2198             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2199             disable altivec
2200         ;;
2201         e500)
2202             cpuflags="-mcpu=8540 -mhard-float"
2203             disable altivec
2204         ;;
2205     esac
2206
2207 elif enabled x86; then
2208
2209     case $cpu in
2210         i[345]86|pentium)
2211             cpuflags="-march=$cpu"
2212             disable mmx
2213         ;;
2214         # targets that do NOT support conditional mov (cmov)
2215         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2216             cpuflags="-march=$cpu"
2217             disable cmov
2218         ;;
2219         # targets that do support conditional mov (cmov)
2220         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2221             cpuflags="-march=$cpu"
2222             enable cmov
2223             enable fast_cmov
2224         ;;
2225         # targets that do support conditional mov but on which it's slow
2226         pentium4|pentium4m|prescott|nocona)
2227             cpuflags="-march=$cpu"
2228             enable cmov
2229             disable fast_cmov
2230         ;;
2231     esac
2232
2233 elif enabled sparc; then
2234
2235     case $cpu in
2236         niagara)
2237             cpuflags="-mcpu=$cpu"
2238             disable vis
2239         ;;
2240         sparc64)
2241             cpuflags="-mcpu=v9"
2242         ;;
2243     esac
2244
2245 elif enabled arm; then
2246
2247     case $cpu in
2248         armv*)
2249             cpuflags="-march=$cpu"
2250             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2251         ;;
2252         *)
2253             cpuflags="-mcpu=$cpu"
2254             case $cpu in
2255                 cortex-a*)                               subarch=armv7a  ;;
2256                 cortex-r*)                               subarch=armv7r  ;;
2257                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2258                 arm11*)                                  subarch=armv6   ;;
2259                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2260                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2261             esac
2262         ;;
2263     esac
2264
2265 elif enabled alpha; then
2266
2267     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2268
2269 elif enabled bfin; then
2270
2271     cpuflags="-mcpu=$cpu"
2272
2273 elif enabled mips; then
2274
2275     cpuflags="-march=$cpu"
2276
2277 elif enabled avr32; then
2278
2279     case $cpu in
2280         ap7[02]0[0-2])
2281             subarch="avr32_ap"
2282             cpuflags="-mpart=$cpu"
2283         ;;
2284         ap)
2285             subarch="avr32_ap"
2286             cpuflags="-march=$cpu"
2287         ;;
2288         uc3[ab]*)
2289             subarch="avr32_uc"
2290             cpuflags="-mcpu=$cpu"
2291         ;;
2292         uc)
2293             subarch="avr32_uc"
2294             cpuflags="-march=$cpu"
2295         ;;
2296     esac
2297
2298 fi
2299
2300 add_cflags $cpuflags
2301 add_asflags $cpuflags
2302
2303 # compiler sanity check
2304 check_exec <<EOF
2305 int main(void){ return 0; }
2306 EOF
2307 if test "$?" != 0; then
2308     echo "$cc is unable to create an executable file."
2309     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2310         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2311         echo "Only do this if you know what cross compiling means."
2312     fi
2313     die "C compiler test failed."
2314 fi
2315
2316 add_cppflags -D_ISOC99_SOURCE
2317 check_cflags -std=c99
2318 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2319 #include <stdlib.h>
2320 EOF
2321 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2322 #include <stdlib.h>
2323 EOF
2324
2325 check_host_cflags -std=c99
2326 check_host_cflags -Wall
2327
2328 case "$arch" in
2329     alpha|ia64|mips|parisc|sparc)
2330         spic=$shared
2331     ;;
2332     x86)
2333         subarch="x86_32"
2334         check_cc <<EOF && subarch="x86_64"
2335         int test[(int)sizeof(char*) - 7];
2336 EOF
2337         if test "$subarch" = "x86_64"; then
2338             spic=$shared
2339         fi
2340     ;;
2341 esac
2342
2343 enable $subarch
2344 enabled spic && enable pic
2345
2346 # OS specific
2347 case $target_os in
2348     haiku)
2349         prefix_default="/boot/common"
2350         network_extralibs="-lnetwork"
2351         host_libs=
2352         ;;
2353     sunos)
2354         FFSERVERLDFLAGS=""
2355         SHFLAGS='-shared -Wl,-h,$$(@F)'
2356         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2357         network_extralibs="-lsocket -lnsl"
2358         add_cppflags -D__EXTENSIONS__
2359         nm_opts='-P -g'
2360         ;;
2361     netbsd)
2362         disable symver
2363         oss_indev_extralibs="-lossaudio"
2364         oss_outdev_extralibs="-lossaudio"
2365         ;;
2366     openbsd)
2367         enable malloc_aligned
2368         # On OpenBSD 4.5. the compiler does not use PIC unless
2369         # explicitly using -fPIC. Libav builds fine without PIC,
2370         # however the generated executable will not do anything
2371         # (simply quits with exit-code 1, no crash, no output).
2372         # Thus explicitly enable PIC here.
2373         enable pic
2374         disable symver
2375         SHFLAGS='-shared'
2376         oss_indev_extralibs="-lossaudio"
2377         oss_outdev_extralibs="-lossaudio"
2378         ;;
2379     dragonfly)
2380         enable malloc_aligned
2381         disable symver
2382         ;;
2383     freebsd)
2384         enable malloc_aligned
2385         ;;
2386     bsd/os)
2387         add_extralibs -lpoll -lgnugetopt
2388         ;;
2389     darwin)
2390         enable malloc_aligned
2391         gas="gas-preprocessor.pl $cc"
2392         enabled ppc && add_asflags -force_cpusubtype_ALL
2393         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2394         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2395         add_ldflags -Wl,-dynamic,-search_paths_first
2396         SLIBSUF=".dylib"
2397         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2398         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2399         FFSERVERLDFLAGS=-Wl,-bind_at_load
2400         objformat="macho"
2401         enabled x86_64 && objformat="macho64"
2402         enabled_any pic shared ||
2403             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2404         ;;
2405     mingw32*)
2406         if test $target_os = "mingw32ce"; then
2407             disable network
2408         else
2409             target_os=mingw32
2410         fi
2411         LIBTARGET=i386
2412         if enabled x86_64; then
2413             enable malloc_aligned
2414             LIBTARGET="i386:x86-64"
2415         elif enabled arm; then
2416             LIBTARGET=arm-wince
2417         fi
2418         shlibdir_default="$bindir_default"
2419         SLIBPREF=""
2420         SLIBSUF=".dll"
2421         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2422         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2423         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2424         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2425             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2426             install -d "$(LIBDIR)"; \
2427             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2428         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2429         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'
2430         objformat="win32"
2431         dlltool="${cross_prefix}dlltool"
2432         enable dos_paths
2433         check_cflags -fno-common
2434         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2435                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2436                 die "ERROR: MinGW runtime version must be >= 3.15."
2437         add_cppflags -U__STRICT_ANSI__
2438         ;;
2439     cygwin*)
2440         target_os=cygwin
2441         shlibdir_default="$bindir_default"
2442         SLIBPREF="cyg"
2443         SLIBSUF=".dll"
2444         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2445         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2446         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2447         objformat="win32"
2448         enable dos_paths
2449         check_cflags -fno-common
2450         add_cppflags -U__STRICT_ANSI__
2451         ;;
2452     *-dos|freedos|opendos)
2453         network_extralibs="-lsocket"
2454         objformat="coff"
2455         enable dos_paths
2456         add_cppflags -U__STRICT_ANSI__
2457         ;;
2458     linux)
2459         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2460         enable dv1394
2461         ;;
2462     irix*)
2463         target_os=irix
2464         ranlib="echo ignoring ranlib"
2465         ;;
2466     os/2*)
2467         ln_s="cp -f"
2468         objformat="aout"
2469         add_cppflags -D_GNU_SOURCE
2470         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2471         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2472         FFSERVERLDFLAGS=""
2473         LIBSUF="_s.a"
2474         SLIBPREF=""
2475         SLIBSUF=".dll"
2476         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2477         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2478         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2479           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2480           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2481           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2482           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2483           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2484         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2485           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2486         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2487         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2488         enable dos_paths
2489         ;;
2490     gnu/kfreebsd)
2491         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2492         ;;
2493     gnu)
2494         ;;
2495     qnx)
2496         add_cppflags -D_QNX_SOURCE
2497         network_extralibs="-lsocket"
2498         ;;
2499     symbian)
2500         SLIBSUF=".dll"
2501         enable dos_paths
2502         add_cflags --include=$sysinclude/gcce/gcce.h
2503         ;;
2504     none)
2505         ;;
2506     *)
2507         die "Unknown OS '$target_os'."
2508         ;;
2509 esac
2510
2511 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2512
2513 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2514
2515 set_default $PATHS_LIST
2516
2517 # we need to build at least one lib type
2518 if ! enabled_any static shared; then
2519     cat <<EOF
2520 At least one library type must be built.
2521 Specify --enable-static to build the static libraries or --enable-shared to
2522 build the shared libraries as well. To only build the shared libraries specify
2523 --disable-static in addition to --enable-shared.
2524 EOF
2525     exit 1;
2526 fi
2527
2528 disabled static && LIBNAME=""
2529
2530 die_license_disabled() {
2531     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2532 }
2533
2534 die_license_disabled gpl libx264
2535 die_license_disabled gpl libxavs
2536 die_license_disabled gpl libxvid
2537 die_license_disabled gpl x11grab
2538
2539 die_license_disabled nonfree libfaac
2540
2541 die_license_disabled version3 libopencore_amrnb
2542 die_license_disabled version3 libopencore_amrwb
2543 die_license_disabled version3 libvo_aacenc
2544 die_license_disabled version3 libvo_amrwbenc
2545
2546 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2547
2548 disabled optimizations || check_cflags -fomit-frame-pointer
2549
2550 enable_pic() {
2551     enable pic
2552     add_cppflags -DPIC
2553     add_cflags   -fPIC
2554     add_asflags  -fPIC
2555 }
2556
2557 enabled pic && enable_pic
2558
2559 check_cc <<EOF || die "Symbol mangling check failed."
2560 int ff_extern;
2561 EOF
2562 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2563 extern_prefix=${sym%%ff_extern*}
2564
2565 check_cc <<EOF && enable inline_asm
2566 void foo(void) { __asm__ volatile ("" ::); }
2567 EOF
2568
2569 _restrict=
2570 for restrict_keyword in restrict __restrict__ __restrict; do
2571     check_cc <<EOF && _restrict=$restrict_keyword && break
2572 void foo(char * $restrict_keyword p);
2573 EOF
2574 done
2575
2576 check_cc <<EOF && enable attribute_packed
2577 struct { int x; } __attribute__((packed)) x;
2578 EOF
2579
2580 check_cc <<EOF && enable attribute_may_alias
2581 union { int x; } __attribute__((may_alias)) x;
2582 EOF
2583
2584 check_cc <<EOF || die "endian test failed"
2585 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2586 EOF
2587 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2588
2589 if enabled alpha; then
2590
2591     check_cflags -mieee
2592
2593 elif enabled arm; then
2594
2595     enabled thumb && check_cflags -mthumb || check_cflags -marm
2596     nogas=die
2597
2598     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2599         enable vfp_args
2600     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2601         case "${cross_prefix:-$cc}" in
2602             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2603             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2604 __asm__ (".eabi_attribute 28, 1");
2605 int main(void) { return 0; }
2606 EOF
2607         esac
2608         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2609     fi
2610
2611     # We have to check if pld is a nop and disable it.
2612     check_asm pld '"pld [r0]"'
2613
2614     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2615     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2616     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2617     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2618     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2619     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2620     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2621
2622     enabled_all armv6t2 shared !pic && enable_pic
2623
2624 elif enabled mips; then
2625
2626     check_asm loongson '"dmult.g $1, $2, $3"'
2627     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2628
2629 elif enabled ppc; then
2630
2631     enable local_aligned_8 local_aligned_16
2632
2633     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2634     check_asm ibm_asm   '"add 0, 0, 0"'
2635     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2636     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2637
2638     # AltiVec flags: The FSF version of GCC differs from the Apple version
2639     if enabled altivec; then
2640         nogas=warn
2641         check_cflags -maltivec -mabi=altivec &&
2642         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2643         check_cflags -faltivec
2644
2645         # check if our compiler supports Motorola AltiVec C API
2646         check_cc <<EOF || disable altivec
2647 $inc_altivec_h
2648 int main(void) {
2649     vector signed int v1, v2, v3;
2650     v1 = vec_add(v2,v3);
2651     return 0;
2652 }
2653 EOF
2654
2655         # check if our compiler supports braces for vector declarations
2656         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2657 $inc_altivec_h
2658 int main (void) { (vector int) {1}; return 0; }
2659 EOF
2660     fi
2661
2662 elif enabled sparc; then
2663
2664     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2665         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2666
2667 elif enabled x86; then
2668
2669     enable local_aligned_8 local_aligned_16
2670
2671     # check whether EBP is available on x86
2672     # As 'i' is stored on the stack, this program will crash
2673     # if the base pointer is used to access it because the
2674     # base pointer is cleared in the inline assembly code.
2675     check_exec_crash <<EOF && enable ebp_available
2676     volatile int i=0;
2677     __asm__ volatile (
2678         "xorl %%ebp, %%ebp"
2679     ::: "%ebp");
2680     return i;
2681 EOF
2682
2683     # check whether EBX is available on x86
2684     check_asm ebx_available '""::"b"(0)' &&
2685         check_asm ebx_available '"":::"%ebx"'
2686
2687     # check whether xmm clobbers are supported
2688     check_asm xmm_clobbers '"":::"%xmm0"'
2689
2690     # check whether binutils is new enough to compile SSSE3/MMX2
2691     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2692     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2693
2694     check_asm bswap '"bswap %%eax" ::: "%eax"'
2695
2696     if ! disabled_any asm mmx yasm; then
2697         if check_cmd $yasmexe --version; then
2698             enabled x86_64 && yasm_extra="-m amd64"
2699             yasm_debug="-g dwarf2"
2700         elif check_cmd nasm -v; then
2701             yasmexe=nasm
2702             yasm_debug="-g -F dwarf"
2703             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2704         fi
2705
2706         YASMFLAGS="-f $objformat $yasm_extra"
2707         enabled pic               && append YASMFLAGS "-DPIC"
2708         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2709         case "$objformat" in
2710             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2711         esac
2712
2713         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2714             die "yasm not found, use --disable-yasm for a crippled build"
2715         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2716     fi
2717
2718     case "$cpu" in
2719         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2720             disable fast_clz
2721         ;;
2722     esac
2723
2724 fi
2725
2726 if enabled asm; then
2727     as=${gas:=$as}
2728     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2729         $nogas "GNU assembler not found, install gas-preprocessor"
2730 fi
2731
2732 check_ldflags -Wl,--as-needed
2733
2734 if check_func dlopen; then
2735     ldl=
2736 elif check_func dlopen -ldl; then
2737     ldl=-ldl
2738 fi
2739
2740 if enabled network; then
2741     check_type "sys/types.h sys/socket.h" socklen_t
2742     check_type netdb.h "struct addrinfo"
2743     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2744     check_type netinet/in.h "struct sockaddr_in6"
2745     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2746     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2747     # Prefer arpa/inet.h over winsock2
2748     if check_header arpa/inet.h ; then
2749         check_func closesocket
2750     elif check_header winsock2.h ; then
2751         check_func_headers winsock2.h closesocket -lws2 && \
2752             network_extralibs="-lws2" || \
2753         { check_func_headers winsock2.h closesocket -lws2_32 && \
2754             network_extralibs="-lws2_32"; }
2755         check_type ws2tcpip.h socklen_t
2756         check_type ws2tcpip.h "struct addrinfo"
2757         check_type ws2tcpip.h "struct ipv6_mreq"
2758         check_type ws2tcpip.h "struct sockaddr_in6"
2759         check_type ws2tcpip.h "struct sockaddr_storage"
2760         check_struct winsock2.h "struct sockaddr" sa_len
2761     else
2762         disable network
2763     fi
2764 fi
2765
2766 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2767 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2768
2769 check_func  fcntl
2770 check_func  fork
2771 check_func  getaddrinfo $network_extralibs
2772 check_func  gethrtime
2773 check_func  getrusage
2774 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2775 check_func  inet_aton $network_extralibs
2776 check_func  isatty
2777 check_func  localtime_r
2778 check_func  ${malloc_prefix}memalign            && enable memalign
2779 check_func  mkstemp
2780 check_func  mmap
2781 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2782 check_func  setrlimit
2783 check_func  strerror_r
2784 check_func  strtok_r
2785 check_func_headers io.h setmode
2786 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2787 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2788 check_func_headers windows.h GetProcessTimes
2789 check_func_headers windows.h MapViewOfFile
2790 check_func_headers windows.h VirtualAlloc
2791
2792 check_header dlfcn.h
2793 check_header dxva2api.h
2794 check_header malloc.h
2795 check_header poll.h
2796 check_header sys/mman.h
2797 check_header sys/resource.h
2798 check_header sys/select.h
2799 check_header vdpau/vdpau.h
2800 check_header vdpau/vdpau_x11.h
2801 check_header X11/extensions/XvMClib.h
2802
2803 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2804
2805 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2806 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2807
2808 # check for some common methods of building with pthread support
2809 # do this before the optional library checks as some of them require pthreads
2810 if ! disabled pthreads && ! enabled w32threads; then
2811     enable pthreads
2812     if check_func pthread_create; then
2813         :
2814     elif check_func pthread_create -pthread; then
2815         add_cflags -pthread
2816         add_extralibs -pthread
2817     elif check_func pthread_create -pthreads; then
2818         add_cflags -pthreads
2819         add_extralibs -pthreads
2820     elif check_func pthread_create -lpthreadGC2; then
2821         add_extralibs -lpthreadGC2
2822     elif ! check_lib pthread.h pthread_create -lpthread; then
2823         disable pthreads
2824     fi
2825 fi
2826
2827 for thread in $THREADS_LIST; do
2828     if enabled $thread; then
2829         test -n "$thread_type" &&
2830             die "ERROR: Only one thread type must be selected." ||
2831             thread_type="$thread"
2832     fi
2833 done
2834
2835 check_lib math.h sin -lm && LIBM="-lm"
2836 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2837
2838 check_mathfunc exp2
2839 check_mathfunc exp2f
2840 check_mathfunc llrint
2841 check_mathfunc llrintf
2842 check_mathfunc log2
2843 check_mathfunc log2f
2844 check_mathfunc lrint
2845 check_mathfunc lrintf
2846 check_mathfunc round
2847 check_mathfunc roundf
2848 check_mathfunc trunc
2849 check_mathfunc truncf
2850
2851 # these are off by default, so fail if requested and not available
2852 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2853 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2854 enabled libdirac   && require_pkg_config dirac                          \
2855     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2856     "dirac_decoder_init dirac_encoder_init"
2857 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2858 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2859 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2860 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2861 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2862 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2863 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2864 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2865 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2866 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2867 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2868 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2869 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2870 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2871 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2872 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2873 enabled libvpx     && {
2874     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2875                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2876     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2877                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2878 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2879                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2880                         die "ERROR: libx264 version must be >= 0.115."; }
2881 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2882 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2883 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2884
2885 # libdc1394 check
2886 if enabled libdc1394; then
2887     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2888         enable libdc1394_2; } ||
2889     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2890         enable libdc1394_1; } ||
2891     die "ERROR: No version of libdc1394 found "
2892 fi
2893
2894 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2895     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2896     enable sdl &&
2897     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2898 fi
2899
2900 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2901
2902 check_header linux/fb.h
2903 check_header linux/videodev.h
2904 check_header linux/videodev2.h
2905 check_header sys/videoio.h
2906
2907 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2908 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2909 # w32api 3.12 had it defined wrong
2910 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2911
2912 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2913 { check_header dev/bktr/ioctl_meteor.h &&
2914   check_header dev/bktr/ioctl_bt848.h; } ||
2915 { check_header machine/ioctl_meteor.h &&
2916   check_header machine/ioctl_bt848.h; } ||
2917 { check_header dev/video/meteor/ioctl_meteor.h &&
2918   check_header dev/video/bktr/ioctl_bt848.h; } ||
2919 check_header dev/ic/bt8xx.h
2920
2921 check_header sndio.h
2922 check_header sys/soundcard.h
2923 check_header soundcard.h
2924
2925 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2926
2927 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2928
2929 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2930
2931 enabled x11grab                         &&
2932 check_header X11/Xlib.h                 &&
2933 check_header X11/extensions/XShm.h      &&
2934 check_header X11/extensions/Xfixes.h    &&
2935 check_func XOpenDisplay -lX11           &&
2936 check_func XShmCreateImage -lX11 -lXext &&
2937 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2938
2939 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2940 check_cpp_condition \
2941     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2942     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2943       disable vdpau; }
2944 fi
2945
2946 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2947
2948 # add some useful compiler flags if supported
2949 check_cflags -Wdeclaration-after-statement
2950 check_cflags -Wall
2951 check_cflags -Wno-parentheses
2952 check_cflags -Wno-switch
2953 check_cflags -Wno-format-zero-length
2954 check_cflags -Wdisabled-optimization
2955 check_cflags -Wpointer-arith
2956 check_cflags -Wredundant-decls
2957 check_cflags -Wno-pointer-sign
2958 check_cflags -Wcast-qual
2959 check_cflags -Wwrite-strings
2960 check_cflags -Wtype-limits
2961 check_cflags -Wundef
2962 check_cflags -Wmissing-prototypes
2963 enabled extra_warnings && check_cflags -Winline
2964
2965 # add some linker flags
2966 check_ldflags -Wl,--warn-common
2967 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
2968 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2969
2970 echo "X{};" > $TMPV
2971 if test_ldflags -Wl,--version-script,$TMPV; then
2972     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2973     check_cc <<EOF && enable symver_asm_label
2974 void ff_foo(void) __asm__ ("av_foo@VERSION");
2975 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2976 EOF
2977     check_cc <<EOF && enable symver_gnu_asm
2978 __asm__(".symver ff_foo,av_foo@VERSION");
2979 void ff_foo(void) {}
2980 EOF
2981 fi
2982
2983 if [ -n "$optflags" ]; then
2984     add_cflags $optflags
2985 elif enabled small; then
2986     add_cflags $size_cflags
2987 elif enabled optimizations; then
2988     add_cflags $speed_cflags
2989 else
2990     add_cflags $noopt_cflags
2991 fi
2992 check_cflags -fno-math-errno
2993 check_cflags -fno-signed-zeros
2994
2995 if enabled icc; then
2996     # Just warnings, no remarks
2997     check_cflags -w1
2998     # -wd: Disable following warnings
2999     # 144, 167, 556: -Wno-pointer-sign
3000     # 1292: attribute "foo" ignored
3001     # 10006: ignoring unknown option -fno-signed-zeros
3002     # 10148: ignoring unknown option -Wno-parentheses
3003     # 10156: ignoring option '-W'; no argument required
3004     check_cflags -wd144,167,556,1292,10006,10148,10156
3005     # 11030: Warning unknown option --as-needed
3006     # 10156: ignoring option '-export'; no argument required
3007     check_ldflags -wd10156,11030
3008     # Allow to compile with optimizations
3009     check_ldflags -march=$cpu
3010     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3011     enable ebp_available
3012     if enabled x86_32; then
3013         test ${icc_version%%.*} -ge 11 && \
3014             check_cflags -falign-stack=maintain-16-byte || \
3015             disable aligned_stack
3016     fi
3017 elif enabled ccc; then
3018     # disable some annoying warnings
3019     add_cflags -msg_disable cvtu32to64
3020     add_cflags -msg_disable embedcomment
3021     add_cflags -msg_disable needconstext
3022     add_cflags -msg_disable nomainieee
3023     add_cflags -msg_disable ptrmismatch1
3024     add_cflags -msg_disable unreachcode
3025 elif enabled gcc; then
3026     check_cflags -fno-tree-vectorize
3027     check_cflags -Werror=implicit-function-declaration
3028     check_cflags -Werror=missing-prototypes
3029 elif enabled llvm_gcc; then
3030     check_cflags -mllvm -stack-alignment=16
3031 elif enabled clang; then
3032     check_cflags -mllvm -stack-alignment=16
3033     check_cflags -Qunused-arguments
3034 elif enabled armcc; then
3035     # 2523: use of inline assembler is deprecated
3036     add_cflags -W${armcc_opt},--diag_suppress=2523
3037     add_cflags -W${armcc_opt},--diag_suppress=1207
3038     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3039     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3040     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3041     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3042 elif enabled tms470; then
3043     add_cflags -pds=824 -pds=837
3044 elif enabled pathscale; then
3045     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3046 fi
3047
3048 enabled_any $THREADS_LIST      && enable threads
3049
3050 check_deps $CONFIG_LIST       \
3051            $CONFIG_EXTRA      \
3052            $HAVE_LIST         \
3053            $DECODER_LIST      \
3054            $ENCODER_LIST      \
3055            $HWACCEL_LIST      \
3056            $PARSER_LIST       \
3057            $BSF_LIST          \
3058            $DEMUXER_LIST      \
3059            $MUXER_LIST        \
3060            $FILTER_LIST       \
3061            $INDEV_LIST        \
3062            $OUTDEV_LIST       \
3063            $PROTOCOL_LIST     \
3064            $ACODEC_TESTS      \
3065            $VCODEC_TESTS      \
3066            $LAVF_TESTS        \
3067            $LAVFI_TESTS       \
3068            $SEEK_TESTS        \
3069
3070 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3071
3072 ! enabled_any memalign posix_memalign malloc_aligned &&
3073     enabled_any $need_memalign && enable memalign_hack
3074
3075 echo "install prefix            $prefix"
3076 echo "source path               $source_path"
3077 echo "C compiler                $cc"
3078 echo "ARCH                      $arch ($cpu)"
3079 if test "$build_suffix" != ""; then
3080     echo "build suffix              $build_suffix"
3081 fi
3082 if test "$extra_version" != ""; then
3083     echo "version string suffix     $extra_version"
3084 fi
3085 echo "big-endian                ${bigendian-no}"
3086 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3087 if enabled x86; then
3088     echo "${yasmexe}                      ${yasm-no}"
3089     echo "MMX enabled               ${mmx-no}"
3090     echo "MMX2 enabled              ${mmx2-no}"
3091     echo "3DNow! enabled            ${amd3dnow-no}"
3092     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3093     echo "SSE enabled               ${sse-no}"
3094     echo "SSSE3 enabled             ${ssse3-no}"
3095     echo "AVX enabled               ${avx-no}"
3096     echo "CMOV enabled              ${cmov-no}"
3097     echo "CMOV is fast              ${fast_cmov-no}"
3098     echo "EBX available             ${ebx_available-no}"
3099     echo "EBP available             ${ebp_available-no}"
3100 fi
3101 if enabled arm; then
3102     echo "ARMv5TE enabled           ${armv5te-no}"
3103     echo "ARMv6 enabled             ${armv6-no}"
3104     echo "ARMv6T2 enabled           ${armv6t2-no}"
3105     echo "ARM VFP enabled           ${armvfp-no}"
3106     echo "IWMMXT enabled            ${iwmmxt-no}"
3107     echo "NEON enabled              ${neon-no}"
3108 fi
3109 if enabled mips; then
3110     echo "MMI enabled               ${mmi-no}"
3111 fi
3112 if enabled ppc; then
3113     echo "AltiVec enabled           ${altivec-no}"
3114     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3115     echo "dcbzl available           ${dcbzl-no}"
3116 fi
3117 if enabled sparc; then
3118     echo "VIS enabled               ${vis-no}"
3119 fi
3120 echo "debug symbols             ${debug-no}"
3121 echo "optimize for size         ${small-no}"
3122 echo "optimizations             ${optimizations-no}"
3123 echo "static                    ${static-no}"
3124 echo "shared                    ${shared-no}"
3125 echo "postprocessing support    ${postproc-no}"
3126 echo "new filter support        ${avfilter-no}"
3127 echo "network support           ${network-no}"
3128 echo "threading support         ${thread_type-no}"
3129 echo "SDL support               ${sdl-no}"
3130 echo "Sun medialib support      ${mlib-no}"
3131 echo "AVISynth enabled          ${avisynth-no}"
3132 echo "frei0r enabled            ${frei0r-no}"
3133 echo "libdc1394 support         ${libdc1394-no}"
3134 echo "libdirac enabled          ${libdirac-no}"
3135 echo "libfaac enabled           ${libfaac-no}"
3136 echo "libgsm enabled            ${libgsm-no}"
3137 echo "libmp3lame enabled        ${libmp3lame-no}"
3138 echo "libnut enabled            ${libnut-no}"
3139 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3140 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3141 echo "libopencv support         ${libopencv-no}"
3142 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3143 echo "librtmp enabled           ${librtmp-no}"
3144 echo "libschroedinger enabled   ${libschroedinger-no}"
3145 echo "libspeex enabled          ${libspeex-no}"
3146 echo "libtheora enabled         ${libtheora-no}"
3147 echo "libva enabled             ${vaapi-no}"
3148 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3149 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3150 echo "libvorbis enabled         ${libvorbis-no}"
3151 echo "libvpx enabled            ${libvpx-no}"
3152 echo "libx264 enabled           ${libx264-no}"
3153 echo "libxavs enabled           ${libxavs-no}"
3154 echo "libxvid enabled           ${libxvid-no}"
3155 echo "zlib enabled              ${zlib-no}"
3156 echo "bzlib enabled             ${bzlib-no}"
3157 echo
3158
3159 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3160     echo "Enabled ${type}s:"
3161     eval list=\$$(toupper $type)_LIST
3162     print_enabled '_*' $list | sort | pr -r -3 -t
3163     echo
3164 done
3165
3166 license="LGPL version 2.1 or later"
3167 if enabled nonfree; then
3168     license="nonfree and unredistributable"
3169 elif enabled gplv3; then
3170     license="GPL version 3 or later"
3171 elif enabled lgplv3; then
3172     license="LGPL version 3 or later"
3173 elif enabled gpl; then
3174     license="GPL version 2 or later"
3175 fi
3176
3177 echo "License: $license"
3178
3179 echo "Creating config.mak and config.h..."
3180
3181 test -e Makefile || $ln_s "$source_path/Makefile" .
3182
3183 config_files="$TMPH config.mak"
3184
3185 cat > config.mak <<EOF
3186 # Automatically generated by configure - do not modify!
3187 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3188 prefix=$prefix
3189 LIBDIR=\$(DESTDIR)$libdir
3190 SHLIBDIR=\$(DESTDIR)$shlibdir
3191 INCDIR=\$(DESTDIR)$incdir
3192 BINDIR=\$(DESTDIR)$bindir
3193 DATADIR=\$(DESTDIR)$datadir
3194 MANDIR=\$(DESTDIR)$mandir
3195 SRC_PATH=$source_path
3196 CC_IDENT=$cc_ident
3197 ARCH=$arch
3198 CC=$cc
3199 AS=$as
3200 LD=$ld
3201 DEPCC=$dep_cc
3202 YASM=$yasmexe
3203 YASMDEP=$yasmexe
3204 AR=$ar
3205 RANLIB=$ranlib
3206 LN_S=$ln_s
3207 CPPFLAGS=$CPPFLAGS
3208 CFLAGS=$CFLAGS
3209 ASFLAGS=$ASFLAGS
3210 AS_O=$CC_O
3211 CC_O=$CC_O
3212 DLLTOOL=$dlltool
3213 LDFLAGS=$LDFLAGS
3214 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3215 SHFLAGS=$SHFLAGS
3216 YASMFLAGS=$YASMFLAGS
3217 BUILDSUF=$build_suffix
3218 FULLNAME=$FULLNAME
3219 LIBPREF=$LIBPREF
3220 LIBSUF=$LIBSUF
3221 LIBNAME=$LIBNAME
3222 SLIBPREF=$SLIBPREF
3223 SLIBSUF=$SLIBSUF
3224 EXESUF=$EXESUF
3225 EXTRA_VERSION=$extra_version
3226 DEPFLAGS=$DEPFLAGS
3227 CCDEP=$CCDEP
3228 ASDEP=$ASDEP
3229 CC_DEPFLAGS=$CC_DEPFLAGS
3230 AS_DEPFLAGS=$AS_DEPFLAGS
3231 HOSTCC=$host_cc
3232 HOSTCFLAGS=$host_cflags
3233 HOSTEXESUF=$HOSTEXESUF
3234 HOSTLDFLAGS=$host_ldflags
3235 HOSTLIBS=$host_libs
3236 TARGET_EXEC=$target_exec
3237 TARGET_PATH=$target_path
3238 SDL_LIBS=$sdl_libs
3239 SDL_CFLAGS=$sdl_cflags
3240 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3241 EXTRALIBS=$extralibs
3242 INSTALL=install
3243 LIBTARGET=${LIBTARGET}
3244 SLIBNAME=${SLIBNAME}
3245 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3246 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3247 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3248 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3249 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3250 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3251 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3252 EOF
3253
3254 get_version(){
3255     name=$1
3256     file=$source_path/$2
3257     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3258     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3259     lcname=$(tolower $name)
3260     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3261     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3262 }
3263
3264 get_version LIBSWSCALE  libswscale/swscale.h
3265 get_version LIBPOSTPROC libpostproc/postprocess.h
3266 get_version LIBAVCODEC  libavcodec/version.h
3267 get_version LIBAVDEVICE libavdevice/avdevice.h
3268 get_version LIBAVFORMAT libavformat/version.h
3269 get_version LIBAVUTIL   libavutil/avutil.h
3270 get_version LIBAVFILTER libavfilter/avfilter.h
3271
3272 cat > $TMPH <<EOF
3273 /* Automatically generated by configure - do not modify! */
3274 #ifndef LIBAV_CONFIG_H
3275 #define LIBAV_CONFIG_H
3276 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3277 #define LIBAV_LICENSE "$(c_escape $license)"
3278 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3279 #define CC_TYPE "$cc_type"
3280 #define CC_VERSION $cc_version
3281 #define restrict $_restrict
3282 #define EXTERN_PREFIX "${extern_prefix}"
3283 #define EXTERN_ASM ${extern_prefix}
3284 #define SLIBSUF "$SLIBSUF"
3285 EOF
3286
3287 test -n "$malloc_prefix" &&
3288     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3289
3290 if enabled small || disabled optimizations; then
3291     echo "#undef  av_always_inline"  >> $TMPH
3292     if enabled small; then
3293         echo "#define av_always_inline inline"  >> $TMPH
3294     else
3295         echo "#define av_always_inline av_unused"  >> $TMPH
3296     fi
3297 fi
3298
3299 if enabled yasm; then
3300     append config_files $TMPASM
3301     printf '' >$TMPASM
3302 fi
3303
3304 print_config ARCH_   "$config_files" $ARCH_LIST
3305 print_config HAVE_   "$config_files" $HAVE_LIST
3306 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3307                                      $CONFIG_EXTRA      \
3308                                      $DECODER_LIST      \
3309                                      $ENCODER_LIST      \
3310                                      $HWACCEL_LIST      \
3311                                      $PARSER_LIST       \
3312                                      $BSF_LIST          \
3313                                      $DEMUXER_LIST      \
3314                                      $MUXER_LIST        \
3315                                      $FILTER_LIST       \
3316                                      $PROTOCOL_LIST     \
3317                                      $INDEV_LIST        \
3318                                      $OUTDEV_LIST       \
3319
3320 cat >>config.mak <<EOF
3321 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3322 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3323 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3324 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3325 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3326 EOF
3327
3328 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3329
3330 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3331 cp_if_changed $TMPH config.h
3332 touch .config
3333
3334 enabled yasm && cp_if_changed $TMPASM config.asm
3335
3336 cat > $TMPH <<EOF
3337 /* Generated by ffconf */
3338 #ifndef AVUTIL_AVCONFIG_H
3339 #define AVUTIL_AVCONFIG_H
3340 EOF
3341
3342 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3343
3344 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3345
3346 cp_if_changed $TMPH libavutil/avconfig.h
3347
3348 test -n "$WARNINGS" && printf "\n$WARNINGS"
3349
3350 # build pkg-config files
3351
3352 pkgconfig_generate(){
3353 name=$1
3354 shortname=${name#lib}${build_suffix}
3355 comment=$2
3356 version=$3
3357 libs=$4
3358 requires=$5
3359 enabled ${name#lib} || return 0
3360 mkdir -p $name
3361 cat <<EOF > $name/$name.pc
3362 prefix=$prefix
3363 exec_prefix=\${prefix}
3364 libdir=$libdir
3365 includedir=$incdir
3366
3367 Name: $name
3368 Description: $comment
3369 Version: $version
3370 Requires: $(enabled shared || echo $requires)
3371 Requires.private: $(enabled shared && echo $requires)
3372 Conflicts:
3373 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3374 Libs.private: $(enabled shared && echo $libs)
3375 Cflags: -I\${includedir}
3376 EOF
3377 cat <<EOF > $name/$name-uninstalled.pc
3378 prefix=
3379 exec_prefix=
3380 libdir=\${pcfiledir}
3381 includedir=${source_path}
3382
3383 Name: $name
3384 Description: $comment
3385 Version: $version
3386 Requires: $requires
3387 Conflicts:
3388 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3389 Cflags: -I\${includedir}
3390 EOF
3391 }
3392
3393 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3394 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3395 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3396 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3397 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3398 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3399 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"