configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-avconv         disable avconv build
  85   --disable-ffplay         disable ffplay build
  86   --disable-ffprobe        disable ffprobe build
  87   --disable-ffserver       disable ffserver build
  88   --disable-avdevice       disable libavdevice build
  89   --disable-avcodec        disable libavcodec build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --disable-postproc       disable libpostproc build
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --enable-gray            enable full grayscale support (slower color)
  99   --disable-swscale-alpha  disable alpha channel support in swscale
 100   --disable-fastdiv        disable table-based division
 101   --enable-small           optimize for size instead of speed
 102   --disable-aandct         disable AAN DCT code
 103   --disable-dct            disable DCT code
 104   --disable-fft            disable FFT code
 105   --disable-golomb         disable Golomb code
 106   --disable-huffman        disable Huffman code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --enable-vaapi           enable VAAPI code [autodetect]
 111   --enable-vdpau           enable VDPAU code [autodetect]
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
 165   --enable-frei0r          enable frei0r video filtering
 166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 168   --enable-libopencv       enable video filtering via libopencv [no]
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libfreetype     enable libfreetype [no]
 174   --enable-libgsm          enable GSM support via libgsm [no]
 175   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 176   --enable-libnut          enable NUT (de)muxing via libnut,
 177                            native (de)muxer exists [no]
 178   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 179   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 180   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 181   --enable-libspeex        enable Speex decoding via libspeex [no]
 182   --enable-libtheora       enable Theora encoding via libtheora [no]
 183   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 184   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 185   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 186                            native implementation exists [no]
 187   --enable-libvpx          enable VP8 support via libvpx [no]
 188   --enable-libx264         enable H.264 encoding via x264 [no]
 189   --enable-libxavs         enable AVS encoding via xavs [no]
 190   --enable-libxvid         enable Xvid encoding via xvidcore,
 191                            native MPEG-4/Xvid encoder exists [no]
 192   --enable-openal          enable OpenAL 1.1 capture support [no]
 193   --enable-mlib            enable Sun medialib [no]
 194   --enable-zlib            enable zlib [autodetect]
 195
 196 Advanced options (experts only):
 197   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 198   --enable-cross-compile   assume a cross-compiler is used
 199   --sysroot=PATH           root of cross-build tree
 200   --sysinclude=PATH        location of cross-build system headers
 201   --target-os=OS           compiler targets OS [$target_os]
 202   --target-exec=CMD        command to run executables on target
 203   --target-path=DIR        path to view of build directory on target
 204   --nm=NM                  use nm tool
 205   --ar=AR                  use archive tool AR [$ar_default]
 206   --as=AS                  use assembler AS [$as_default]
 207   --cc=CC                  use C compiler CC [$cc_default]
 208   --ld=LD                  use linker LD
 209   --host-cc=HOSTCC         use host C compiler HOSTCC
 210   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 211   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 212   --host-libs=HLIBS        use libs HLIBS when linking for host
 213   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 214   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 215   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 216   --extra-version=STRING   version string suffix []
 217   --build-suffix=SUFFIX    library name suffix []
 218   --arch=ARCH              select architecture [$arch]
 219   --cpu=CPU                select the minimum required CPU (affects
 220                            instruction selection, may crash on older CPUs)
 221   --disable-asm            disable all assembler optimizations
 222   --disable-altivec        disable AltiVec optimizations
 223   --disable-amd3dnow       disable 3DNow! optimizations
 224   --disable-amd3dnowext    disable 3DNow! extended optimizations
 225   --disable-mmx            disable MMX optimizations
 226   --disable-mmx2           disable MMX2 optimizations
 227   --disable-sse            disable SSE optimizations
 228   --disable-ssse3          disable SSSE3 optimizations
 229   --disable-avx            disable AVX optimizations
 230   --disable-armv5te        disable armv5te optimizations
 231   --disable-armv6          disable armv6 optimizations
 232   --disable-armv6t2        disable armv6t2 optimizations
 233   --disable-armvfp         disable ARM VFP optimizations
 234   --disable-iwmmxt         disable iwmmxt optimizations
 235   --disable-mmi            disable MMI optimizations
 236   --disable-neon           disable neon optimizations
 237   --disable-vis            disable VIS optimizations
 238   --disable-yasm           disable use of yasm assembler
 239   --enable-pic             build position-independent code
 240   --malloc-prefix=PFX      prefix malloc and related names with PFX
 241   --enable-sram            allow use of on-chip SRAM
 242   --disable-symver         disable symbol versioning
 243   --optflags               override optimization-related compiler flags
 244
 245 Developer options (useful when working on FFmpeg itself):
 246   --disable-debug          disable debugging symbols
 247   --enable-debug=LEVEL     set the debug level [$debuglevel]
 248   --disable-optimizations  disable compiler optimizations
 249   --enable-extra-warnings  enable more compiler warnings
 250   --disable-stripping      disable stripping of executables and shared libraries
 251   --samples=PATH           location of test samples for FATE, if not set use
 252                            \$FATE_SAMPLES at make invocation time.
 253
 254 NOTE: Object files are built at the place where configure is launched.
 255 EOF
 256   exit 0
 257 }
 258
 259 quotes='""'
 260
 261 log(){
 262     echo "$@" >> $logfile
 263 }
 264
 265 log_file(){
 266     log BEGIN $1
 267     pr -n -t $1 >> $logfile
 268     log END $1
 269 }
 270
 271 echolog(){
 272     log "$@"
 273     echo "$@"
 274 }
 275
 276 warn(){
 277     log "WARNING: $*"
 278     WARNINGS="${WARNINGS}WARNING: $*\n"
 279 }
 280
 281 die(){
 282     echolog "$@"
 283     cat <<EOF
 284
 285 If you think configure made a mistake, make sure you are using the latest
 286 version from Git.  If the latest version fails, report the problem to the
 287 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 288 EOF
 289     if disabled logging; then
 290         cat <<EOF
 291 Rerun configure with logging enabled (do not use --disable-logging), and
 292 include the log this produces with your report.
 293 EOF
 294     else
 295 cat <<EOF
 296 Include the log file "$logfile" produced by configure as this will help
 297 solving the problem.
 298 EOF
 299     fi
 300     exit 1
 301 }
 302
 303 # Avoid locale weirdness, besides we really just want to translate ASCII.
 304 toupper(){
 305     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 306 }
 307
 308 tolower(){
 309     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 310 }
 311
 312 c_escape(){
 313     echo "$*" | sed 's/["\\]/\\\0/g'
 314 }
 315
 316 sh_quote(){
 317     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 318     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 319     echo "$v"
 320 }
 321
 322 cleanws(){
 323     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 324 }
 325
 326 filter(){
 327     pat=$1
 328     shift
 329     for v; do
 330         eval "case $v in $pat) echo $v ;; esac"
 331     done
 332 }
 333
 334 filter_out(){
 335     pat=$1
 336     shift
 337     for v; do
 338         eval "case $v in $pat) ;; *) echo $v ;; esac"
 339     done
 340 }
 341
 342 map(){
 343     m=$1
 344     shift
 345     for v; do eval $m; done
 346 }
 347
 348 set_all(){
 349     value=$1
 350     shift
 351     for var in $*; do
 352         eval $var=$value
 353     done
 354 }
 355
 356 set_weak(){
 357     value=$1
 358     shift
 359     for var; do
 360         eval : \${$var:=$value}
 361     done
 362 }
 363
 364 set_safe(){
 365     var=$1
 366     shift
 367     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 368 }
 369
 370 get_safe(){
 371     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 372 }
 373
 374 pushvar(){
 375     for var in $*; do
 376         eval level=\${${var}_level:=0}
 377         eval ${var}_${level}="\$$var"
 378         eval ${var}_level=$(($level+1))
 379     done
 380 }
 381
 382 popvar(){
 383     for var in $*; do
 384         eval level=\${${var}_level:-0}
 385         test $level = 0 && continue
 386         eval level=$(($level-1))
 387         eval $var="\${${var}_${level}}"
 388         eval ${var}_level=$level
 389         eval unset ${var}_${level}
 390     done
 391 }
 392
 393 enable(){
 394     set_all yes $*
 395 }
 396
 397 disable(){
 398     set_all no $*
 399 }
 400
 401 enable_weak(){
 402     set_weak yes $*
 403 }
 404
 405 disable_weak(){
 406     set_weak no $*
 407 }
 408
 409 enable_safe(){
 410     for var; do
 411         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 412     done
 413 }
 414
 415 disable_safe(){
 416     for var; do
 417         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 418     done
 419 }
 420
 421 do_enable_deep(){
 422     for var; do
 423         enabled $var && continue
 424         eval sel="\$${var}_select"
 425         eval sgs="\$${var}_suggest"
 426         pushvar var sgs
 427         enable_deep $sel
 428         popvar sgs
 429         enable_deep_weak $sgs
 430         popvar var
 431     done
 432 }
 433
 434 enable_deep(){
 435     do_enable_deep $*
 436     enable $*
 437 }
 438
 439 enable_deep_weak(){
 440     do_enable_deep $*
 441     enable_weak $*
 442 }
 443
 444 enabled(){
 445     test "${1#!}" = "$1" && op== || op=!=
 446     eval test "x\$${1#!}" $op "xyes"
 447 }
 448
 449 disabled(){
 450     test "${1#!}" = "$1" && op== || op=!=
 451     eval test "x\$${1#!}" $op "xno"
 452 }
 453
 454 enabled_all(){
 455     for opt; do
 456         enabled $opt || return 1
 457     done
 458 }
 459
 460 disabled_all(){
 461     for opt; do
 462         disabled $opt || return 1
 463     done
 464 }
 465
 466 enabled_any(){
 467     for opt; do
 468         enabled $opt && return 0
 469     done
 470 }
 471
 472 disabled_any(){
 473     for opt; do
 474         disabled $opt && return 0
 475     done
 476     return 1
 477 }
 478
 479 set_default(){
 480     for opt; do
 481         eval : \${$opt:=\$${opt}_default}
 482     done
 483 }
 484
 485 is_in(){
 486     value=$1
 487     shift
 488     for var in $*; do
 489         [ $var = $value ] && return 0
 490     done
 491     return 1
 492 }
 493
 494 check_deps(){
 495     for cfg; do
 496         cfg="${cfg#!}"
 497         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 498         disabled ${cfg}_checking && continue
 499         enable ${cfg}_checking
 500
 501         eval dep_all="\$${cfg}_deps"
 502         eval dep_any="\$${cfg}_deps_any"
 503         eval dep_sel="\$${cfg}_select"
 504         eval dep_sgs="\$${cfg}_suggest"
 505         eval dep_ifa="\$${cfg}_if"
 506         eval dep_ifn="\$${cfg}_if_any"
 507
 508         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 509         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 510         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 511
 512         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 513         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 514         enabled_all  $dep_all || disable $cfg
 515         enabled_any  $dep_any || disable $cfg
 516         disabled_any $dep_sel && disable $cfg
 517
 518         if enabled $cfg; then
 519             eval dep_extralibs="\$${cfg}_extralibs"
 520             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 521             enable_deep $dep_sel
 522             enable_deep_weak $dep_sgs
 523         fi
 524
 525         disable ${cfg}_checking
 526     done
 527 }
 528
 529 print_config_h(){
 530     enabled $1 && v=1 || v=0
 531     echo "#define $2 $v"
 532 }
 533
 534 print_config_mak(){
 535     enabled $1 && v= || v=!
 536     echo "$v$2=yes"
 537 }
 538
 539 print_config_asm(){
 540     enabled $1 && echo "%define $2"
 541 }
 542
 543 print_config(){
 544     pfx=$1
 545     files=$2
 546     shift 2
 547     for cfg; do
 548         ucname="$(toupper $cfg)"
 549         for f in $files; do
 550             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 551         done
 552     done
 553 }
 554
 555 print_enabled(){
 556     test "$1" = -n && end=" " && shift || end="\n"
 557     suf=$1
 558     shift
 559     for v; do
 560         enabled $v && printf "%s$end" ${v%$suf};
 561     done
 562 }
 563
 564 append(){
 565     var=$1
 566     shift
 567     eval "$var=\"\$$var $*\""
 568 }
 569
 570 prepend(){
 571     var=$1
 572     shift
 573     eval "$var=\"$* \$$var\""
 574 }
 575
 576 add_cppflags(){
 577     append CPPFLAGS $($filter_cppflags "$@")
 578 }
 579
 580 add_cflags(){
 581     append CFLAGS $($filter_cflags "$@")
 582 }
 583
 584 add_asflags(){
 585     append ASFLAGS $($filter_asflags "$@")
 586 }
 587
 588 add_ldflags(){
 589     append LDFLAGS "$@"
 590 }
 591
 592 add_extralibs(){
 593     prepend extralibs "$@"
 594 }
 595
 596 check_cmd(){
 597     log "$@"
 598     "$@" >> $logfile 2>&1
 599 }
 600
 601 check_cc(){
 602     log check_cc "$@"
 603     cat > $TMPC
 604     log_file $TMPC
 605     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 606 }
 607
 608 check_cpp(){
 609     log check_cpp "$@"
 610     cat > $TMPC
 611     log_file $TMPC
 612     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 613 }
 614
 615 check_as(){
 616     log check_as "$@"
 617     cat > $TMPC
 618     log_file $TMPC
 619     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 620 }
 621
 622 check_asm(){
 623     log check_asm "$@"
 624     name="$1"
 625     code="$2"
 626     shift 2
 627     disable $name
 628     check_as "$@" <<EOF && enable $name
 629 void foo(void){ __asm__ volatile($code); }
 630 EOF
 631 }
 632
 633 check_yasm(){
 634     log check_yasm "$@"
 635     echo "$1" > $TMPS
 636     log_file $TMPS
 637     shift 1
 638     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 639 }
 640
 641 check_ld(){
 642     log check_ld "$@"
 643     flags=''
 644     libs=''
 645     for f; do
 646         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 647     done
 648     check_cc $($filter_cflags $flags) || return
 649     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 650 }
 651
 652 check_cppflags(){
 653     log check_cppflags "$@"
 654     set -- $($filter_cppflags "$@")
 655     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 656 int x;
 657 EOF
 658 }
 659
 660 check_cflags(){
 661     log check_cflags "$@"
 662     set -- $($filter_cflags "$@")
 663     check_cc "$@" <<EOF && append CFLAGS "$@"
 664 int x;
 665 EOF
 666 }
 667
 668 test_ldflags(){
 669     log test_ldflags "$@"
 670     check_ld "$@" <<EOF
 671 int main(void){ return 0; }
 672 EOF
 673 }
 674
 675 check_ldflags(){
 676     log check_ldflags "$@"
 677     test_ldflags "$@" && add_ldflags "$@"
 678 }
 679
 680 check_header(){
 681     log check_header "$@"
 682     header=$1
 683     shift
 684     disable_safe $header
 685     check_cpp "$@" <<EOF && enable_safe $header
 686 #include <$header>
 687 int x;
 688 EOF
 689 }
 690
 691 check_func(){
 692     log check_func "$@"
 693     func=$1
 694     shift
 695     disable $func
 696     check_ld "$@" <<EOF && enable $func
 697 extern int $func();
 698 int main(void){ $func(); }
 699 EOF
 700 }
 701
 702 check_mathfunc(){
 703     log check_mathfunc "$@"
 704     func=$1
 705     shift
 706     disable $func
 707     check_ld "$@" <<EOF && enable $func
 708 #include <math.h>
 709 float foo(float f) { return $func(f); }
 710 int main(void){ return 0; }
 711 EOF
 712 }
 713
 714 check_func_headers(){
 715     log check_func_headers "$@"
 716     headers=$1
 717     funcs=$2
 718     shift 2
 719     {
 720         for hdr in $headers; do
 721             echo "#include <$hdr>"
 722         done
 723         for func in $funcs; do
 724             echo "long check_$func(void) { return (long) $func; }"
 725         done
 726         echo "int main(void) { return 0; }"
 727     } | check_ld "$@" && enable $funcs && enable_safe $headers
 728 }
 729
 730 check_cpp_condition(){
 731     log check_cpp_condition "$@"
 732     header=$1
 733     condition=$2
 734     shift 2
 735     check_cpp $($filter_cppflags "$@") <<EOF
 736 #include <$header>
 737 #if !($condition)
 738 #error "unsatisfied condition: $condition"
 739 #endif
 740 EOF
 741 }
 742
 743 check_lib(){
 744     log check_lib "$@"
 745     header="$1"
 746     func="$2"
 747     shift 2
 748     check_header $header && check_func $func "$@" && add_extralibs "$@"
 749 }
 750
 751 check_lib2(){
 752     log check_lib2 "$@"
 753     headers="$1"
 754     funcs="$2"
 755     shift 2
 756     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 757 }
 758
 759 check_pkg_config(){
 760     log check_pkg_config "$@"
 761     pkg="$1"
 762     headers="$2"
 763     funcs="$3"
 764     shift 3
 765     $pkg_config --exists $pkg 2>/dev/null || return
 766     pkg_cflags=$($pkg_config --cflags $pkg)
 767     pkg_libs=$($pkg_config --libs $pkg)
 768     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 769         set_safe ${pkg}_cflags $pkg_cflags   &&
 770         set_safe ${pkg}_libs   $pkg_libs
 771 }
 772
 773 check_exec(){
 774     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 775 }
 776
 777 check_exec_crash(){
 778     code=$(cat)
 779
 780     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 781     # are safe but may not be available everywhere.  Thus we use
 782     # raise(SIGTERM) instead.  The check is run in a subshell so we
 783     # can redirect the "Terminated" message from the shell.  SIGBUS
 784     # is not defined by standard C so it is used conditionally.
 785
 786     (check_exec "$@") >> $logfile 2>&1 <<EOF
 787 #include <signal.h>
 788 static void sighandler(int sig){
 789     raise(SIGTERM);
 790 }
 791 int main(void){
 792     signal(SIGILL, sighandler);
 793     signal(SIGFPE, sighandler);
 794     signal(SIGSEGV, sighandler);
 795 #ifdef SIGBUS
 796     signal(SIGBUS, sighandler);
 797 #endif
 798     { $code }
 799 }
 800 EOF
 801 }
 802
 803 check_type(){
 804     log check_type "$@"
 805     headers=$1
 806     type=$2
 807     shift 2
 808     disable_safe "$type"
 809     incs=""
 810     for hdr in $headers; do
 811         incs="$incs
 812 #include <$hdr>"
 813     done
 814     check_cc "$@" <<EOF && enable_safe "$type"
 815 $incs
 816 $type v;
 817 EOF
 818 }
 819
 820 check_struct(){
 821     log check_type "$@"
 822     headers=$1
 823     struct=$2
 824     member=$3
 825     shift 3
 826     disable_safe "${struct}_${member}"
 827     incs=""
 828     for hdr in $headers; do
 829         incs="$incs
 830 #include <$hdr>"
 831     done
 832     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 833 $incs
 834 const void *p = &(($struct *)0)->$member;
 835 EOF
 836 }
 837
 838 require(){
 839     name="$1"
 840     header="$2"
 841     func="$3"
 842     shift 3
 843     check_lib $header $func "$@" || die "ERROR: $name not found"
 844 }
 845
 846 require2(){
 847     name="$1"
 848     headers="$2"
 849     func="$3"
 850     shift 3
 851     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 852 }
 853
 854 require_pkg_config(){
 855     pkg="$1"
 856     check_pkg_config "$@" || die "ERROR: $pkg not found"
 857     add_cflags    $(get_safe ${pkg}_cflags)
 858     add_extralibs $(get_safe ${pkg}_libs)
 859 }
 860
 861 check_host_cc(){
 862     log check_host_cc "$@"
 863     cat > $TMPC
 864     log_file $TMPC
 865     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 866 }
 867
 868 check_host_cflags(){
 869     log check_host_cflags "$@"
 870     check_host_cc "$@" <<EOF && append host_cflags "$@"
 871 int x;
 872 EOF
 873 }
 874
 875 apply(){
 876     file=$1
 877     shift
 878     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 879 }
 880
 881 cp_if_changed(){
 882     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 883     mkdir -p "$(dirname $2)"
 884     cp -f "$1" "$2"
 885 }
 886
 887 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 888 # system-dependent things.
 889
 890 COMPONENT_LIST="
 891     bsfs
 892     decoders
 893     demuxers
 894     encoders
 895     filters
 896     hwaccels
 897     indevs
 898     muxers
 899     outdevs
 900     parsers
 901     protocols
 902 "
 903
 904 CONFIG_LIST="
 905     $COMPONENT_LIST
 906     aandct
 907     ac3dsp
 908     avcodec
 909     avdevice
 910     avfilter
 911     avformat
 912     avisynth
 913     bzlib
 914     crystalhd
 915     dct
 916     doc
 917     dwt
 918     dxva2
 919     fastdiv
 920     ffmpeg
 921     avconv
 922     ffplay
 923     ffprobe
 924     ffserver
 925     fft
 926     frei0r
 927     golomb
 928     gpl
 929     gray
 930     h264dsp
 931     h264pred
 932     hardcoded_tables
 933     huffman
 934     libcelt
 935     libdc1394
 936     libdirac
 937     libfaac
 938     libfreetype
 939     libgsm
 940     libmp3lame
 941     libnut
 942     libopencore_amrnb
 943     libopencore_amrwb
 944     libopencv
 945     libopenjpeg
 946     librtmp
 947     libschroedinger
 948     libspeex
 949     libtheora
 950     libvo_aacenc
 951     libvo_amrwbenc
 952     libvorbis
 953     libvpx
 954     libx264
 955     libxavs
 956     libxvid
 957     lpc
 958     lsp
 959     mdct
 960     memalign_hack
 961     mlib
 962     mpegaudiodsp
 963     network
 964     nonfree
 965     openal
 966     pic
 967     postproc
 968     rdft
 969     rtpdec
 970     runtime_cpudetect
 971     shared
 972     sinewin
 973     small
 974     sram
 975     static
 976     swscale
 977     swscale_alpha
 978     thumb
 979     vaapi
 980     vdpau
 981     version3
 982     x11grab
 983     zlib
 984 "
 985
 986 THREADS_LIST='
 987     pthreads
 988     w32threads
 989 '
 990
 991 ARCH_LIST='
 992     alpha
 993     arm
 994     avr32
 995     avr32_ap
 996     avr32_uc
 997     bfin
 998     ia64
 999     m68k
1000     mips
1001     mips64
1002     parisc
1003     ppc
1004     ppc64
1005     s390
1006     sh4
1007     sparc
1008     sparc64
1009     tomi
1010     x86
1011     x86_32
1012     x86_64
1013 '
1014
1015 ARCH_EXT_LIST='
1016     altivec
1017     amd3dnow
1018     amd3dnowext
1019     armv5te
1020     armv6
1021     armv6t2
1022     armvfp
1023     avx
1024     iwmmxt
1025     mmi
1026     mmx
1027     mmx2
1028     neon
1029     ppc4xx
1030     sse
1031     ssse3
1032     vfpv3
1033     vis
1034 '
1035
1036 HAVE_LIST_PUB='
1037     bigendian
1038     fast_unaligned
1039 '
1040
1041 HAVE_LIST="
1042     $ARCH_EXT_LIST
1043     $HAVE_LIST_PUB
1044     $THREADS_LIST
1045     aligned_stack
1046     alsa_asoundlib_h
1047     altivec_h
1048     arpa_inet_h
1049     attribute_may_alias
1050     attribute_packed
1051     bswap
1052     closesocket
1053     cmov
1054     dcbzl
1055     dev_bktr_ioctl_bt848_h
1056     dev_bktr_ioctl_meteor_h
1057     dev_ic_bt8xx_h
1058     dev_video_meteor_ioctl_meteor_h
1059     dev_video_bktr_ioctl_bt848_h
1060     dlfcn_h
1061     dlopen
1062     dos_paths
1063     ebp_available
1064     ebx_available
1065     exp2
1066     exp2f
1067     fast_64bit
1068     fast_clz
1069     fast_cmov
1070     fcntl
1071     fork
1072     getaddrinfo
1073     gethrtime
1074     GetProcessMemoryInfo
1075     GetProcessTimes
1076     getrusage
1077     gnu_as
1078     struct_rusage_ru_maxrss
1079     ibm_asm
1080     inet_aton
1081     inline_asm
1082     isatty
1083     kbhit
1084     ldbrx
1085     llrint
1086     llrintf
1087     local_aligned_16
1088     local_aligned_8
1089     localtime_r
1090     log2
1091     log2f
1092     loongson
1093     lrint
1094     lrintf
1095     lzo1x_999_compress
1096     machine_ioctl_bt848_h
1097     machine_ioctl_meteor_h
1098     malloc_h
1099     MapViewOfFile
1100     memalign
1101     mkstemp
1102     mmap
1103     posix_memalign
1104     round
1105     roundf
1106     sdl
1107     sdl_video_size
1108     setmode
1109     sndio_h
1110     socklen_t
1111     soundcard_h
1112     poll_h
1113     setrlimit
1114     strerror_r
1115     strptime
1116     strtok_r
1117     struct_addrinfo
1118     struct_ipv6_mreq
1119     struct_sockaddr_in6
1120     struct_sockaddr_sa_len
1121     struct_sockaddr_storage
1122     symver
1123     symver_gnu_asm
1124     symver_asm_label
1125     sys_mman_h
1126     sys_resource_h
1127     sys_select_h
1128     sys_soundcard_h
1129     sys_videoio_h
1130     termios_h
1131     threads
1132     trunc
1133     truncf
1134     vfp_args
1135     VirtualAlloc
1136     winsock2_h
1137     xform_asm
1138     xmm_clobbers
1139     yasm
1140 "
1141
1142 # options emitted with CONFIG_ prefix but not available on command line
1143 CONFIG_EXTRA="
1144     avutil
1145     gplv3
1146     lgplv3
1147 "
1148
1149 CMDLINE_SELECT="
1150     $ARCH_EXT_LIST
1151     $CONFIG_LIST
1152     $THREADS_LIST
1153     asm
1154     cross_compile
1155     debug
1156     extra_warnings
1157     logging
1158     optimizations
1159     stripping
1160     symver
1161     yasm
1162 "
1163
1164 PATHS_LIST='
1165     bindir
1166     datadir
1167     incdir
1168     libdir
1169     mandir
1170     prefix
1171     shlibdir
1172 '
1173
1174 CMDLINE_SET="
1175     $PATHS_LIST
1176     ar
1177     arch
1178     as
1179     build_suffix
1180     cc
1181     cpu
1182     cross_prefix
1183     dep_cc
1184     extra_version
1185     host_cc
1186     host_cflags
1187     host_ldflags
1188     host_libs
1189     host_os
1190     install
1191     ld
1192     logfile
1193     malloc_prefix
1194     nm
1195     optflags
1196     pkg_config
1197     samples
1198     strip
1199     sysinclude
1200     sysroot
1201     target_exec
1202     target_os
1203     target_path
1204 "
1205
1206 CMDLINE_APPEND="
1207     extra_cflags
1208 "
1209
1210 # code dependency declarations
1211
1212 # architecture extensions
1213
1214 armv5te_deps="arm"
1215 armv6_deps="arm"
1216 armv6t2_deps="arm"
1217 armvfp_deps="arm"
1218 iwmmxt_deps="arm"
1219 neon_deps="arm"
1220 vfpv3_deps="armvfp"
1221
1222 mmi_deps="mips"
1223
1224 altivec_deps="ppc"
1225 ppc4xx_deps="ppc"
1226
1227 vis_deps="sparc"
1228
1229 x86_64_suggest="cmov fast_cmov"
1230 amd3dnow_deps="mmx"
1231 amd3dnowext_deps="amd3dnow"
1232 mmx_deps="x86"
1233 mmx2_deps="mmx"
1234 sse_deps="mmx"
1235 ssse3_deps="sse"
1236 avx_deps="ssse3"
1237
1238 aligned_stack_if_any="ppc x86"
1239 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1240 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1241 fast_unaligned_if_any="armv6 ppc x86"
1242
1243 need_memalign="altivec neon sse"
1244 inline_asm_deps="!tms470"
1245
1246 symver_if_any="symver_asm_label symver_gnu_asm"
1247
1248 # subsystems
1249 dct_select="rdft"
1250 mdct_select="fft"
1251 rdft_select="fft"
1252 mpegaudiodsp_select="dct"
1253
1254 # decoders / encoders / hardware accelerators
1255 aac_decoder_select="mdct sinewin"
1256 aac_encoder_select="mdct sinewin"
1257 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1258 ac3_decoder_select="mdct ac3dsp ac3_parser"
1259 ac3_encoder_select="mdct ac3dsp"
1260 ac3_fixed_encoder_select="mdct ac3dsp"
1261 alac_encoder_select="lpc"
1262 amrnb_decoder_select="lsp"
1263 amrwb_decoder_select="lsp"
1264 atrac1_decoder_select="mdct sinewin"
1265 atrac3_decoder_select="mdct"
1266 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1267 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1268 cavs_decoder_select="golomb"
1269 cook_decoder_select="mdct sinewin"
1270 cscd_decoder_suggest="zlib"
1271 dca_decoder_select="mdct"
1272 dnxhd_encoder_select="aandct"
1273 dxa_decoder_select="zlib"
1274 eac3_decoder_select="ac3_decoder"
1275 eac3_encoder_select="mdct ac3dsp"
1276 eamad_decoder_select="aandct"
1277 eatgq_decoder_select="aandct"
1278 eatqi_decoder_select="aandct"
1279 ffv1_decoder_select="golomb"
1280 flac_decoder_select="golomb"
1281 flac_encoder_select="golomb lpc"
1282 flashsv_decoder_select="zlib"
1283 flashsv_encoder_select="zlib"
1284 flashsv2_encoder_select="zlib"
1285 flashsv2_decoder_select="zlib"
1286 flv_decoder_select="h263_decoder"
1287 flv_encoder_select="h263_encoder"
1288 fraps_decoder_select="huffman"
1289 h261_encoder_select="aandct"
1290 h263_decoder_select="h263_parser"
1291 h263_encoder_select="aandct"
1292 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1293 h263i_decoder_select="h263_decoder"
1294 h263p_encoder_select="h263_encoder"
1295 h264_decoder_select="golomb h264dsp h264pred"
1296 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1297 h264_dxva2_hwaccel_deps="dxva2api_h"
1298 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1299 h264_vaapi_hwaccel_select="vaapi"
1300 h264_vdpau_decoder_select="vdpau h264_decoder"
1301 imc_decoder_select="fft mdct sinewin"
1302 jpegls_decoder_select="golomb"
1303 jpegls_encoder_select="golomb"
1304 ljpeg_encoder_select="aandct"
1305 loco_decoder_select="golomb"
1306 mjpeg_encoder_select="aandct"
1307 mlp_decoder_select="mlp_parser"
1308 mp1_decoder_select="mpegaudiodsp"
1309 mp2_decoder_select="mpegaudiodsp"
1310 mp3adu_decoder_select="mpegaudiodsp"
1311 mp3_decoder_select="mpegaudiodsp"
1312 mp3on4_decoder_select="mpegaudiodsp"
1313 mp1float_decoder_select="mpegaudiodsp"
1314 mp2float_decoder_select="mpegaudiodsp"
1315 mp3adufloat_decoder_select="mpegaudiodsp"
1316 mp3float_decoder_select="mpegaudiodsp"
1317 mp3on4float_decoder_select="mpegaudiodsp"
1318 mpeg1video_encoder_select="aandct"
1319 mpeg2video_encoder_select="aandct"
1320 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1321 mpeg4_encoder_select="h263_encoder"
1322 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1323 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1324 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1325 mpeg2_crystalhd_decoder_select="crystalhd"
1326 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1327 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1328 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1329 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1330 mpeg4_crystalhd_decoder_select="crystalhd"
1331 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1332 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1333 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1334 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1335 msmpeg4_crystalhd_decoder_select="crystalhd"
1336 msmpeg4v1_decoder_select="h263_decoder"
1337 msmpeg4v1_encoder_select="h263_encoder"
1338 msmpeg4v2_decoder_select="h263_decoder"
1339 msmpeg4v2_encoder_select="h263_encoder"
1340 msmpeg4v3_decoder_select="h263_decoder"
1341 msmpeg4v3_encoder_select="h263_encoder"
1342 nellymoser_decoder_select="mdct sinewin"
1343 nellymoser_encoder_select="mdct sinewin"
1344 png_decoder_select="zlib"
1345 png_encoder_select="zlib"
1346 qcelp_decoder_select="lsp"
1347 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1348 ra_144_encoder_select="lpc"
1349 rv10_decoder_select="h263_decoder"
1350 rv10_encoder_select="h263_encoder"
1351 rv20_decoder_select="h263_decoder"
1352 rv20_encoder_select="h263_encoder"
1353 rv30_decoder_select="golomb h264pred"
1354 rv40_decoder_select="golomb h264pred"
1355 shorten_decoder_select="golomb"
1356 sipr_decoder_select="lsp"
1357 snow_decoder_select="dwt"
1358 snow_encoder_select="aandct dwt"
1359 sonic_decoder_select="golomb"
1360 sonic_encoder_select="golomb"
1361 sonic_ls_encoder_select="golomb"
1362 svq1_encoder_select="aandct"
1363 svq3_decoder_select="golomb h264dsp h264pred"
1364 svq3_decoder_suggest="zlib"
1365 theora_decoder_select="vp3_decoder"
1366 tiff_decoder_suggest="zlib"
1367 tiff_encoder_suggest="zlib"
1368 truehd_decoder_select="mlp_decoder"
1369 tscc_decoder_select="zlib"
1370 twinvq_decoder_select="mdct lsp sinewin"
1371 vc1_decoder_select="h263_decoder"
1372 vc1_crystalhd_decoder_select="crystalhd"
1373 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1374 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1375 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1376 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1377 vc1image_decoder_select="vc1_decoder"
1378 vorbis_decoder_select="mdct"
1379 vorbis_encoder_select="mdct"
1380 vp6_decoder_select="huffman"
1381 vp6a_decoder_select="vp6_decoder"
1382 vp6f_decoder_select="vp6_decoder"
1383 vp8_decoder_select="h264pred"
1384 wmapro_decoder_select="mdct sinewin"
1385 wmav1_decoder_select="mdct sinewin"
1386 wmav1_encoder_select="mdct sinewin"
1387 wmav2_decoder_select="mdct sinewin"
1388 wmav2_encoder_select="mdct sinewin"
1389 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1390 wmv1_decoder_select="h263_decoder"
1391 wmv1_encoder_select="h263_encoder"
1392 wmv2_decoder_select="h263_decoder"
1393 wmv2_encoder_select="h263_encoder"
1394 wmv3_decoder_select="vc1_decoder"
1395 wmv3_crystalhd_decoder_select="crystalhd"
1396 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1397 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1398 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1399 wmv3image_decoder_select="wmv3_decoder"
1400 zlib_decoder_select="zlib"
1401 zlib_encoder_select="zlib"
1402 zmbv_decoder_select="zlib"
1403 zmbv_encoder_select="zlib"
1404
1405 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1406 vaapi_deps="va_va_h"
1407 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1408
1409 # parsers
1410 h264_parser_select="golomb h264dsp h264pred"
1411
1412 # external libraries
1413 libcelt_decoder_deps="libcelt"
1414 libdirac_decoder_deps="libdirac !libschroedinger"
1415 libdirac_encoder_deps="libdirac"
1416 libfaac_encoder_deps="libfaac"
1417 libgsm_decoder_deps="libgsm"
1418 libgsm_encoder_deps="libgsm"
1419 libgsm_ms_decoder_deps="libgsm"
1420 libgsm_ms_encoder_deps="libgsm"
1421 libmp3lame_encoder_deps="libmp3lame"
1422 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1423 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1424 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1425 libopenjpeg_decoder_deps="libopenjpeg"
1426 libschroedinger_decoder_deps="libschroedinger"
1427 libschroedinger_encoder_deps="libschroedinger"
1428 libspeex_decoder_deps="libspeex"
1429 libtheora_encoder_deps="libtheora"
1430 libvo_aacenc_encoder_deps="libvo_aacenc"
1431 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1432 libvorbis_encoder_deps="libvorbis"
1433 libvpx_decoder_deps="libvpx"
1434 libvpx_encoder_deps="libvpx"
1435 libx264_encoder_deps="libx264"
1436 libxavs_encoder_deps="libxavs"
1437 libxvid_encoder_deps="libxvid"
1438
1439 # demuxers / muxers
1440 ac3_demuxer_select="ac3_parser"
1441 asf_stream_muxer_select="asf_muxer"
1442 avisynth_demuxer_deps="avisynth"
1443 dirac_demuxer_select="dirac_parser"
1444 eac3_demuxer_select="ac3_parser"
1445 flac_demuxer_select="flac_parser"
1446 ipod_muxer_select="mov_muxer"
1447 libnut_demuxer_deps="libnut"
1448 libnut_muxer_deps="libnut"
1449 matroska_audio_muxer_select="matroska_muxer"
1450 matroska_demuxer_suggest="zlib bzlib"
1451 mov_demuxer_suggest="zlib"
1452 mp3_demuxer_select="mpegaudio_parser"
1453 mp4_muxer_select="mov_muxer"
1454 mpegtsraw_demuxer_select="mpegts_demuxer"
1455 mxf_d10_muxer_select="mxf_muxer"
1456 ogg_demuxer_select="golomb"
1457 psp_muxer_select="mov_muxer"
1458 rtp_demuxer_select="sdp_demuxer"
1459 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1460 rtsp_demuxer_select="http_protocol rtpdec"
1461 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1462 sap_demuxer_select="sdp_demuxer"
1463 sap_muxer_select="rtp_muxer rtp_protocol"
1464 sdp_demuxer_select="rtpdec"
1465 spdif_muxer_select="aac_parser"
1466 tg2_muxer_select="mov_muxer"
1467 tgp_muxer_select="mov_muxer"
1468 w64_demuxer_deps="wav_demuxer"
1469
1470 # indevs / outdevs
1471 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1472 alsa_outdev_deps="alsa_asoundlib_h"
1473 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1474 dshow_indev_deps="IBaseFilter"
1475 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1476 dv1394_indev_deps="dv1394 dv_demuxer"
1477 fbdev_indev_deps="linux_fb_h"
1478 jack_indev_deps="jack_jack_h sem_timedwait"
1479 lavfi_indev_deps="avfilter"
1480 libdc1394_indev_deps="libdc1394"
1481 openal_indev_deps="openal"
1482 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1483 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1484 sdl_outdev_deps="sdl"
1485 sndio_indev_deps="sndio_h"
1486 sndio_outdev_deps="sndio_h"
1487 v4l_indev_deps="linux_videodev_h"
1488 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1489 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1490 vfwcap_indev_extralibs="-lavicap32"
1491 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1492 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1493
1494 # protocols
1495 gopher_protocol_deps="network"
1496 http_protocol_deps="network"
1497 http_protocol_select="tcp_protocol"
1498 mmsh_protocol_select="http_protocol"
1499 mmst_protocol_deps="network"
1500 rtmp_protocol_select="tcp_protocol"
1501 rtp_protocol_select="udp_protocol"
1502 tcp_protocol_deps="network"
1503 udp_protocol_deps="network"
1504
1505 # filters
1506 abuffer_filter_deps="strtok_r"
1507 aformat_filter_deps="strtok_r"
1508 blackframe_filter_deps="gpl"
1509 boxblur_filter_deps="gpl"
1510 cropdetect_filter_deps="gpl"
1511 delogo_filter_deps="gpl"
1512 drawtext_filter_deps="libfreetype"
1513 frei0r_filter_deps="frei0r dlopen strtok_r"
1514 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1515 hqdn3d_filter_deps="gpl"
1516 movie_filter_deps="avcodec avformat"
1517 mp_filter_deps="gpl avcodec"
1518 mptestsrc_filter_deps="gpl"
1519 negate_filter_deps="lut_filter"
1520 ocv_filter_deps="libopencv"
1521 scale_filter_deps="swscale"
1522 yadif_filter_deps="gpl"
1523
1524 # libraries
1525 avdevice_deps="avcodec avformat"
1526 avformat_deps="avcodec"
1527 postproc_deps="gpl"
1528
1529 # programs
1530 ffmpeg_deps="avcodec avformat swscale"
1531 ffmpeg_select="buffer_filter buffersink_filter"
1532 av_deps="avcodec avformat swscale"
1533 av_select="buffer_filter"
1534 ffplay_deps="avcodec avformat swscale sdl"
1535 ffplay_select="buffersink_filter rdft"
1536 ffprobe_deps="avcodec avformat"
1537 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1538 ffserver_extralibs='$ldl'
1539
1540 doc_deps="texi2html"
1541
1542 # tests
1543
1544 test_deps(){
1545     suf1=$1
1546     suf2=$2
1547     shift 2
1548     for v; do
1549         dep=${v%=*}
1550         tests=${v#*=}
1551         for name in ${tests}; do
1552             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1553         done
1554     done
1555 }
1556
1557 test_deps _encoder _decoder                                             \
1558     adpcm_g726=g726                                                     \
1559     adpcm_ima_qt                                                        \
1560     adpcm_ima_wav                                                       \
1561     adpcm_ms                                                            \
1562     adpcm_swf                                                           \
1563     adpcm_yamaha=adpcm_yam                                              \
1564     alac                                                                \
1565     asv1                                                                \
1566     asv2                                                                \
1567     bmp                                                                 \
1568     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1569     dvvideo="dv dv50"                                                   \
1570     ffv1                                                                \
1571     flac                                                                \
1572     flashsv                                                             \
1573     flv                                                                 \
1574     gif                                                                 \
1575     h261                                                                \
1576     h263="h263 h263p"                                                   \
1577     huffyuv                                                             \
1578     jpegls                                                              \
1579     mjpeg="jpg mjpeg ljpeg"                                             \
1580     mp2                                                                 \
1581     mpeg1video="mpeg mpeg1b"                                            \
1582     mpeg2video="mpeg2 mpeg2thread"                                      \
1583     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1584     msmpeg4v3=msmpeg4                                                   \
1585     msmpeg4v2                                                           \
1586     pbm=pbmpipe                                                         \
1587     pcx                                                                 \
1588     pgm="pgm pgmpipe"                                                   \
1589     png                                                                 \
1590     ppm="ppm ppmpipe"                                                   \
1591     rawvideo="rgb yuv"                                                  \
1592     roq                                                                 \
1593     rv10                                                                \
1594     rv20                                                                \
1595     sgi                                                                 \
1596     snow="snow snowll"                                                  \
1597     svq1                                                                \
1598     targa=tga                                                           \
1599     tiff                                                                \
1600     wmav1                                                               \
1601     wmav2                                                               \
1602     wmv1                                                                \
1603     wmv2                                                                \
1604
1605 test_deps _muxer _demuxer                                               \
1606     aiff                                                                \
1607     pcm_alaw=alaw                                                       \
1608     asf                                                                 \
1609     au                                                                  \
1610     avi                                                                 \
1611     dv=dv_fmt                                                           \
1612     ffm                                                                 \
1613     flv=flv_fmt                                                         \
1614     gxf                                                                 \
1615     matroska=mkv                                                        \
1616     mmf                                                                 \
1617     mov                                                                 \
1618     pcm_mulaw=mulaw                                                     \
1619     mxf="mxf mxf_d10"                                                   \
1620     nut                                                                 \
1621     ogg                                                                 \
1622     rawvideo=pixfmt                                                     \
1623     rm                                                                  \
1624     swf                                                                 \
1625     mpegts=ts                                                           \
1626     voc                                                                 \
1627     wav                                                                 \
1628     yuv4mpegpipe=yuv4mpeg                                               \
1629
1630 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1631 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1632
1633 # default parameters
1634
1635 logfile="config.log"
1636
1637 # installation paths
1638 prefix_default="/usr/local"
1639 bindir_default='${prefix}/bin'
1640 datadir_default='${prefix}/share/ffmpeg'
1641 incdir_default='${prefix}/include'
1642 libdir_default='${prefix}/lib'
1643 mandir_default='${prefix}/share/man'
1644 shlibdir_default="$libdir_default"
1645
1646 # toolchain
1647 ar_default="ar"
1648 cc_default="gcc"
1649 cc_version=\"unknown\"
1650 host_cc_default="gcc"
1651 install="install"
1652 ln_s="ln -sf"
1653 nm_default="nm"
1654 objformat="elf"
1655 pkg_config_default=pkg-config
1656 ranlib="ranlib"
1657 strip_default="strip"
1658 yasmexe="yasm"
1659 nogas=":"
1660
1661 nm_opts='-g'
1662
1663 # machine
1664 arch_default=$(uname -m)
1665 cpu="generic"
1666
1667 # OS
1668 target_os_default=$(tolower $(uname -s))
1669 host_os=$target_os_default
1670
1671 # configurable options
1672 enable avcodec
1673 enable avdevice
1674 enable avfilter
1675 enable avformat
1676 enable avutil
1677 enable asm
1678 enable debug
1679 enable doc
1680 enable fastdiv
1681 enable ffmpeg
1682 enable avconv
1683 enable ffplay
1684 enable ffprobe
1685 enable ffserver
1686 enable network
1687 enable optimizations
1688 enable postproc
1689 enable protocols
1690 enable static
1691 enable stripping
1692 enable swscale
1693 enable swscale_alpha
1694
1695 # build settings
1696 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1697 FFSERVERLDFLAGS=-Wl,-E
1698 LIBPREF="lib"
1699 LIBSUF=".a"
1700 FULLNAME='$(NAME)$(BUILDSUF)'
1701 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1702 SLIBPREF="lib"
1703 SLIBSUF=".so"
1704 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1705 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1706 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1707 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1708 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1709 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1710
1711 AS_O='-o $@'
1712 CC_O='-o $@'
1713
1714 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1715 host_libs='-lm'
1716
1717 target_path='$(CURDIR)'
1718
1719 # since the object filename is not given with the -MM flag, the compiler
1720 # is only able to print the basename, and we must add the path ourselves
1721 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1722 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1723
1724 # find source path
1725 if test -f configure; then
1726     source_path=.
1727 else
1728     source_path=$(cd $(dirname "$0"); pwd)
1729     echo "$source_path" | grep -q '[[:blank:]]' &&
1730         die "Out of tree builds are impossible with whitespace in source path."
1731     test -e "$source_path/config.h" &&
1732         die "Out of tree builds are impossible with config.h in source dir."
1733 fi
1734
1735 for v in "$@"; do
1736     r=${v#*=}
1737     l=${v%"$r"}
1738     r=$(sh_quote "$r")
1739     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1740 done
1741
1742 find_things(){
1743     thing=$1
1744     pattern=$2
1745     file=$source_path/$3
1746     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1747 }
1748
1749 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1750 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1751 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1752 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1753 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1754 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1755 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1756 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1757 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1758 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1759 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1760
1761 find_tests(){
1762     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1763 }
1764
1765 ACODEC_TESTS=$(find_tests acodec)
1766 VCODEC_TESTS=$(find_tests vsynth1)
1767 LAVF_TESTS=$(find_tests lavf)
1768 LAVFI_TESTS=$(find_tests lavfi)
1769 SEEK_TESTS=$(find_tests seek seek_)
1770
1771 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1772
1773 for n in $COMPONENT_LIST; do
1774     v=$(toupper ${n%s})_LIST
1775     eval enable \$$v
1776     eval ${n}_if_any="\$$v"
1777 done
1778
1779 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1780
1781 die_unknown(){
1782     echo "Unknown option \"$1\"."
1783     echo "See $0 --help for available options."
1784     exit 1
1785 }
1786
1787 show_list() {
1788     suffix=_$1
1789     shift
1790     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1791     exit 0
1792 }
1793
1794 for opt do
1795     optval="${opt#*=}"
1796     case "$opt" in
1797     --extra-ldflags=*) add_ldflags $optval
1798     ;;
1799     --extra-libs=*) add_extralibs $optval
1800     ;;
1801     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1802     ;;
1803     --enable-debug=*) debuglevel="$optval"
1804     ;;
1805     --disable-everything)
1806     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1807     ;;
1808     --enable-*=*|--disable-*=*)
1809     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1810     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1811     eval list=\$$(toupper $thing)_LIST
1812     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1813     $action $(filter "$name" $list)
1814     ;;
1815     --enable-?*|--disable-?*)
1816     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1817     if is_in $option $COMPONENT_LIST; then
1818         test $action = disable && action=unset
1819         eval $action \$$(toupper ${option%s})_LIST
1820     elif is_in $option $CMDLINE_SELECT; then
1821         $action $option
1822     else
1823         die_unknown $opt
1824     fi
1825     ;;
1826     --list-*)
1827         NAME="${opt#--list-}"
1828         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1829         NAME=${NAME%s}
1830         eval show_list $NAME \$$(toupper $NAME)_LIST
1831     ;;
1832     --help|-h) show_help
1833     ;;
1834     *)
1835     optname="${opt%%=*}"
1836     optname="${optname#--}"
1837     optname=$(echo "$optname" | sed 's/-/_/g')
1838     if is_in $optname $CMDLINE_SET; then
1839         eval $optname='$optval'
1840     elif is_in $optname $CMDLINE_APPEND; then
1841         append $optname "$optval"
1842     else
1843          die_unknown $opt
1844     fi
1845     ;;
1846     esac
1847 done
1848
1849 disabled logging && logfile=/dev/null
1850
1851 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1852 set >> $logfile
1853
1854 test -n "$cross_prefix" && enable cross_compile
1855
1856 if enabled cross_compile; then
1857     test -n "$arch" && test -n "$target_os" ||
1858         die "Must specify target arch and OS when cross-compiling"
1859 fi
1860
1861 set_default arch target_os
1862
1863 ar_default="${cross_prefix}${ar_default}"
1864 cc_default="${cross_prefix}${cc_default}"
1865 nm_default="${cross_prefix}${nm_default}"
1866 pkg_config_default="${cross_prefix}${pkg_config_default}"
1867 ranlib="${cross_prefix}${ranlib}"
1868 strip_default="${cross_prefix}${strip_default}"
1869
1870 sysinclude_default="${sysroot}/usr/include"
1871
1872 set_default cc nm pkg_config strip sysinclude
1873 enabled cross_compile || host_cc_default=$cc
1874 set_default host_cc
1875
1876 if ! $pkg_config --version >/dev/null 2>&1; then
1877     warn "$pkg_config not found, library detection may fail."
1878     pkg_config=false
1879 fi
1880
1881 exesuf() {
1882     case $1 in
1883         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1884     esac
1885 }
1886
1887 EXESUF=$(exesuf $target_os)
1888 HOSTEXESUF=$(exesuf $host_os)
1889
1890 # set temporary file name
1891 : ${TMPDIR:=$TEMPDIR}
1892 : ${TMPDIR:=$TMP}
1893 : ${TMPDIR:=/tmp}
1894
1895 if ! check_cmd mktemp -u XXXXXX; then
1896     # simple replacement for missing mktemp
1897     # NOT SAFE FOR GENERAL USE
1898     mktemp(){
1899         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1900     }
1901 fi
1902
1903 tmpfile(){
1904     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1905         (set -C; exec > $tmp) 2>/dev/null ||
1906         die "Unable to create temporary file in $TMPDIR."
1907     append TMPFILES $tmp
1908     eval $1=$tmp
1909 }
1910
1911 trap 'rm -f -- $TMPFILES' EXIT
1912
1913 tmpfile TMPC  .c
1914 tmpfile TMPE  $EXESUF
1915 tmpfile TMPH  .h
1916 tmpfile TMPO  .o
1917 tmpfile TMPS  .S
1918 tmpfile TMPV  .ver
1919 tmpfile TMPSH .sh
1920 tmpfile TMPASM .asm
1921
1922 unset -f mktemp
1923
1924 chmod +x $TMPE
1925
1926 # make sure we can execute files in $TMPDIR
1927 cat > $TMPSH 2>> $logfile <<EOF
1928 #! /bin/sh
1929 EOF
1930 chmod +x $TMPSH >> $logfile 2>&1
1931 if ! $TMPSH >> $logfile 2>&1; then
1932     cat <<EOF
1933 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1934 variable to another directory and make sure that it is not mounted noexec.
1935 EOF
1936     die "Sanity test failed."
1937 fi
1938
1939 filter_cflags=echo
1940 filter_cppflags=echo
1941 filter_asflags=echo
1942
1943 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1944     cc_type=llvm_gcc
1945     cc_version=__VERSION__
1946     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1947     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1948     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1949     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1950     speed_cflags='-O3'
1951     size_cflags='-Os'
1952 elif $cc -v 2>&1 | grep -qi ^gcc; then
1953     cc_type=gcc
1954     cc_version=__VERSION__
1955     gcc_version=$($cc --version | head -n1)
1956     gcc_basever=$($cc -dumpversion)
1957     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1958     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1959     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1960     if ! $cc -dumpversion | grep -q '^2\.'; then
1961         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1962         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1963     fi
1964     speed_cflags='-O3'
1965     size_cflags='-Os'
1966 elif $cc --version 2>/dev/null | grep -q Intel; then
1967     cc_type=icc
1968     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1969     cc_ident=$($cc --version | head -n1)
1970     icc_version=$($cc -dumpversion)
1971     CC_DEPFLAGS='-MMD'
1972     AS_DEPFLAGS='-MMD'
1973     speed_cflags='-O3'
1974     size_cflags='-Os'
1975     noopt_cflags='-O1'
1976 elif $cc -v 2>&1 | grep -q xlc; then
1977     cc_type=xlc
1978     cc_version="AV_STRINGIFY(__IBMC__)"
1979     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1980     speed_cflags='-O5'
1981     size_cflags='-O5 -qcompact'
1982 elif $cc -V 2>/dev/null | grep -q Compaq; then
1983     cc_type=ccc
1984     cc_version="AV_STRINGIFY(__DECC_VER)"
1985     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1986     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1987     debuglevel=3
1988     add_ldflags -Wl,-z,now # calls to libots crash without this
1989     speed_cflags='-fast'
1990     size_cflags='-O1'
1991 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1992     test -d "$sysroot" || die "No valid sysroot specified."
1993     cc_type=armcc
1994     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1995     cc_ident=$($cc --vsn | head -n1)
1996     armcc_conf="$PWD/armcc.conf"
1997     $cc --arm_linux_configure                 \
1998         --arm_linux_config_file="$armcc_conf" \
1999         --configure_sysroot="$sysroot"        \
2000         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2001         die "Error creating armcc configuration file."
2002     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2003     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2004     as_default="${cross_prefix}gcc"
2005     CC_DEPFLAGS='-MMD'
2006     AS_DEPFLAGS='-MMD'
2007     speed_cflags='-O3'
2008     size_cflags='-Os'
2009     filter_asflags="filter_out -W${armcc_opt}*"
2010 elif $cc -version 2>/dev/null | grep -q TMS470; then
2011     cc_type=tms470
2012     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2013     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2014     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2015     CC_O='-fr=$(@D)'
2016     as_default="${cross_prefix}gcc"
2017     ld_default="${cross_prefix}gcc"
2018     TMPO=$(basename $TMPC .c).o
2019     append TMPFILES $TMPO
2020     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2021     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2022     AS_DEPFLAGS='-MMD'
2023     speed_cflags='-O3 -mf=5'
2024     size_cflags='-O3 -mf=2'
2025     filter_cflags=tms470_flags
2026     tms470_flags(){
2027         for flag; do
2028             case $flag in
2029                 -march=*|-mcpu=*)
2030                     case "${flag#*=}" in
2031                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2032                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2033                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2034                         armv6*|arm11*)          echo -mv=6   ;;
2035                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2036                                                 echo -mv=5e  ;;
2037                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2038                     esac
2039                     ;;
2040                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2041                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2042                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2043                 -msoft-float)   echo --float_support=vfplib       ;;
2044                 -O[0-3]|-mf=*)  echo $flag                        ;;
2045                 -g)             echo -g -mn                       ;;
2046                 -pds=*)         echo $flag                        ;;
2047             esac
2048         done
2049     }
2050 elif $cc -v 2>&1 | grep -q clang; then
2051     cc_type=clang
2052     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2053         cc_version=__clang_version__ || cc_version=__VERSION__
2054     cc_ident=$($cc --version | head -n1)
2055     CC_DEPFLAGS='-MMD'
2056     AS_DEPFLAGS='-MMD'
2057     speed_cflags='-O3'
2058     size_cflags='-Os'
2059 elif $cc -V 2>&1 | grep -q Sun; then
2060     cc_type=suncc
2061     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2062     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2063     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2064     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2065     add_ldflags -xc99
2066     speed_cflags='-O5'
2067     size_cflags='-O5 -xspace'
2068     filter_cflags=suncc_flags
2069     suncc_flags(){
2070         for flag; do
2071             case $flag in
2072                 -march=*|-mcpu=*)
2073                     case "${flag#*=}" in
2074                         native)                   echo -xtarget=native       ;;
2075                         v9|niagara)               echo -xarch=sparc          ;;
2076                         ultrasparc)               echo -xarch=sparcvis       ;;
2077                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2078                         i586|pentium)             echo -xchip=pentium        ;;
2079                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2080                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2081                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2082                         pentium4*)          echo -xtarget=pentium4           ;;
2083                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2084                         *-sse3)             echo -xarch=sse3                 ;;
2085                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2086                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2087                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2088                         k8|opteron|athlon64|athlon-fx)
2089                                                   echo -xarch=sse2a          ;;
2090                         athlon*)                  echo -xarch=pentium_proa   ;;
2091                     esac
2092                     ;;
2093                 -std=c99)             echo -xc99              ;;
2094                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2095                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2096                 -W*,*)                echo $flag              ;;
2097                 -f*-*|-W*)                                    ;;
2098                 *)                    echo $flag              ;;
2099             esac
2100         done
2101     }
2102 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2103     cc_type=pathscale
2104     cc_version=__PATHSCALE__
2105     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2106     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2107     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2108     speed_cflags='-O2'
2109     size_cflags='-Os'
2110     filter_cflags='filter_out -Wdisabled-optimization'
2111 elif $cc -v 2>&1 | grep -q Open64; then
2112     cc_type=open64
2113     cc_version=__OPEN64__
2114     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2115     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2116     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2117     speed_cflags='-O2'
2118     size_cflags='-Os'
2119     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2120 fi
2121
2122 test -n "$cc_type" && enable $cc_type ||
2123     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2124
2125 : ${as_default:=$cc}
2126 : ${dep_cc_default:=$cc}
2127 : ${ld_default:=$cc}
2128 set_default ar as dep_cc ld
2129
2130 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2131 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2132
2133 add_cflags $extra_cflags
2134 add_asflags $extra_cflags
2135
2136 if test -n "$sysroot"; then
2137     case "$cc_type" in
2138         gcc|llvm_gcc|clang)
2139             add_cppflags --sysroot="$sysroot"
2140             add_ldflags --sysroot="$sysroot"
2141         ;;
2142         tms470)
2143             add_cppflags -I"$sysinclude"
2144             add_ldflags  --sysroot="$sysroot"
2145         ;;
2146     esac
2147 fi
2148
2149 if test "$cpu" = host; then
2150     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2151
2152     case "$cc_type" in
2153         gcc|llvm_gcc)
2154             check_native(){
2155                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2156                 sed -n "/cc1.*$1=/{
2157                             s/.*$1=\\([^ ]*\\).*/\\1/
2158                             p
2159                             q
2160                         }" $TMPE
2161             }
2162             cpu=$(check_native -march || check_native -mcpu)
2163         ;;
2164     esac
2165
2166     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2167 fi
2168
2169 # Deal with common $arch aliases
2170 case "$arch" in
2171     arm*)
2172         arch="arm"
2173     ;;
2174     mips|mipsel|IP*)
2175         arch="mips"
2176     ;;
2177     mips64*)
2178         arch="mips"
2179         subarch="mips64"
2180     ;;
2181     parisc|hppa)
2182         arch="parisc"
2183     ;;
2184     parisc64|hppa64)
2185         arch="parisc"
2186         subarch="parisc64"
2187     ;;
2188     "Power Macintosh"|ppc|powerpc)
2189         arch="ppc"
2190     ;;
2191     ppc64|powerpc64)
2192         arch="ppc"
2193         subarch="ppc64"
2194     ;;
2195     s390|s390x)
2196         arch="s390"
2197     ;;
2198     sh4|sh)
2199         arch="sh4"
2200     ;;
2201     sun4u|sparc64)
2202         arch="sparc"
2203         subarch="sparc64"
2204     ;;
2205     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2206         arch="x86"
2207     ;;
2208 esac
2209
2210 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2211 enable $arch
2212
2213 # Add processor-specific flags
2214 if test "$cpu" = generic; then
2215     : do nothing
2216 elif enabled ppc; then
2217
2218     case $(tolower $cpu) in
2219         601|ppc601|powerpc601)
2220             cpuflags="-mcpu=601"
2221             disable altivec
2222         ;;
2223         603*|ppc603*|powerpc603*)
2224             cpuflags="-mcpu=603"
2225             disable altivec
2226         ;;
2227         604*|ppc604*|powerpc604*)
2228             cpuflags="-mcpu=604"
2229             disable altivec
2230         ;;
2231         g3|75*|ppc75*|powerpc75*)
2232             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2233             disable altivec
2234         ;;
2235         g4|745*|ppc745*|powerpc745*)
2236             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2237         ;;
2238         74*|ppc74*|powerpc74*)
2239             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2240         ;;
2241         g5|970|ppc970|powerpc970|power4*)
2242             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2243         ;;
2244         cell)
2245             cpuflags="-mcpu=cell"
2246             enable ldbrx
2247         ;;
2248         e500v2)
2249             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2250             disable altivec
2251         ;;
2252         e500)
2253             cpuflags="-mcpu=8540 -mhard-float"
2254             disable altivec
2255         ;;
2256     esac
2257
2258 elif enabled x86; then
2259
2260     case $cpu in
2261         i[345]86|pentium)
2262             cpuflags="-march=$cpu"
2263             disable mmx
2264         ;;
2265         # targets that do NOT support conditional mov (cmov)
2266         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2267             cpuflags="-march=$cpu"
2268             disable cmov
2269         ;;
2270         # targets that do support conditional mov (cmov)
2271         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2272             cpuflags="-march=$cpu"
2273             enable cmov
2274             enable fast_cmov
2275         ;;
2276         # targets that do support conditional mov but on which it's slow
2277         pentium4|pentium4m|prescott|nocona)
2278             cpuflags="-march=$cpu"
2279             enable cmov
2280             disable fast_cmov
2281         ;;
2282     esac
2283
2284 elif enabled sparc; then
2285
2286     case $cpu in
2287         niagara)
2288             cpuflags="-mcpu=$cpu"
2289             disable vis
2290         ;;
2291         sparc64)
2292             cpuflags="-mcpu=v9"
2293         ;;
2294     esac
2295
2296 elif enabled arm; then
2297
2298     case $cpu in
2299         armv*)
2300             cpuflags="-march=$cpu"
2301             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2302         ;;
2303         *)
2304             cpuflags="-mcpu=$cpu"
2305             case $cpu in
2306                 cortex-a*)                               subarch=armv7a  ;;
2307                 cortex-r*)                               subarch=armv7r  ;;
2308                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2309                 arm11*)                                  subarch=armv6   ;;
2310                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2311                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2312             esac
2313         ;;
2314     esac
2315
2316 elif enabled alpha; then
2317
2318     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2319
2320 elif enabled bfin; then
2321
2322     cpuflags="-mcpu=$cpu"
2323
2324 elif enabled mips; then
2325
2326     cpuflags="-march=$cpu"
2327
2328 elif enabled avr32; then
2329
2330     case $cpu in
2331         ap7[02]0[0-2])
2332             subarch="avr32_ap"
2333             cpuflags="-mpart=$cpu"
2334         ;;
2335         ap)
2336             subarch="avr32_ap"
2337             cpuflags="-march=$cpu"
2338         ;;
2339         uc3[ab]*)
2340             subarch="avr32_uc"
2341             cpuflags="-mcpu=$cpu"
2342         ;;
2343         uc)
2344             subarch="avr32_uc"
2345             cpuflags="-march=$cpu"
2346         ;;
2347     esac
2348
2349 fi
2350
2351 add_cflags $cpuflags
2352 add_asflags $cpuflags
2353
2354 # compiler sanity check
2355 check_exec <<EOF
2356 int main(void){ return 0; }
2357 EOF
2358 if test "$?" != 0; then
2359     echo "$cc is unable to create an executable file."
2360     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2361         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2362         echo "Only do this if you know what cross compiling means."
2363     fi
2364     die "C compiler test failed."
2365 fi
2366
2367 add_cppflags -D_ISOC99_SOURCE
2368 check_cflags -std=c99
2369 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2370 #include <stdlib.h>
2371 EOF
2372 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2373 #include <stdlib.h>
2374 EOF
2375
2376 check_host_cflags -std=c99
2377 check_host_cflags -Wall
2378
2379 case "$arch" in
2380     alpha|ia64|mips|parisc|sparc)
2381         spic=$shared
2382     ;;
2383     x86)
2384         subarch="x86_32"
2385         check_cc <<EOF && subarch="x86_64"
2386         int test[(int)sizeof(char*) - 7];
2387 EOF
2388         if test "$subarch" = "x86_64"; then
2389             spic=$shared
2390         fi
2391     ;;
2392 esac
2393
2394 enable $subarch
2395 enabled spic && enable pic
2396
2397 # OS specific
2398 case $target_os in
2399     haiku)
2400         prefix_default="/boot/common"
2401         network_extralibs="-lnetwork"
2402         host_libs=
2403         ;;
2404     sunos)
2405         FFSERVERLDFLAGS=""
2406         SHFLAGS='-shared -Wl,-h,$$(@F)'
2407         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2408         network_extralibs="-lsocket -lnsl"
2409         add_cppflags -D__EXTENSIONS__
2410         nm_opts='-P -g'
2411         ;;
2412     netbsd)
2413         disable symver
2414         oss_indev_extralibs="-lossaudio"
2415         oss_outdev_extralibs="-lossaudio"
2416         ;;
2417     openbsd)
2418         enable malloc_aligned
2419         # On OpenBSD 4.5. the compiler does not use PIC unless
2420         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2421         # however the generated executable will not do anything
2422         # (simply quits with exit-code 1, no crash, no output).
2423         # Thus explicitly enable PIC here.
2424         enable pic
2425         disable symver
2426         SHFLAGS='-shared'
2427         oss_indev_extralibs="-lossaudio"
2428         oss_outdev_extralibs="-lossaudio"
2429         ;;
2430     dragonfly)
2431         enable malloc_aligned
2432         disable symver
2433         ;;
2434     freebsd)
2435         enable malloc_aligned
2436         ;;
2437     bsd/os)
2438         add_extralibs -lpoll -lgnugetopt
2439         strip="strip -d"
2440         ;;
2441     darwin)
2442         enable malloc_aligned
2443         gas="gas-preprocessor.pl $cc"
2444         enabled ppc && add_asflags -force_cpusubtype_ALL
2445         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2446         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2447         strip="${strip} -x"
2448         add_ldflags -Wl,-dynamic,-search_paths_first
2449         SLIBSUF=".dylib"
2450         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2451         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2452         FFSERVERLDFLAGS=-Wl,-bind_at_load
2453         objformat="macho"
2454         enabled x86_64 && objformat="macho64"
2455         enabled_any pic shared ||
2456             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2457         ;;
2458     mingw32*)
2459         if test $target_os = "mingw32ce"; then
2460             disable network
2461         else
2462             target_os=mingw32
2463         fi
2464         LIBTARGET=i386
2465         if enabled x86_64; then
2466             enable malloc_aligned
2467             LIBTARGET=x64
2468         elif enabled arm; then
2469             LIBTARGET=arm-wince
2470         fi
2471         shlibdir_default="$bindir_default"
2472         SLIBPREF=""
2473         SLIBSUF=".dll"
2474         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2475         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2476         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2477         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2478         SLIB_INSTALL_LINKS=
2479         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2480         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2481         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'
2482         objformat="win32"
2483         enable dos_paths
2484         check_cflags -fno-common
2485         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2486                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2487                 die "ERROR: MinGW runtime version must be >= 3.15."
2488         add_cppflags -U__STRICT_ANSI__
2489         ;;
2490     cygwin*)
2491         target_os=cygwin
2492         shlibdir_default="$bindir_default"
2493         SLIBPREF="cyg"
2494         SLIBSUF=".dll"
2495         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2496         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2497         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2498         objformat="win32"
2499         enable dos_paths
2500         check_cflags -fno-common
2501         add_cppflags -U__STRICT_ANSI__
2502         ;;
2503     *-dos|freedos|opendos)
2504         network_extralibs="-lsocket"
2505         objformat="coff"
2506         enable dos_paths
2507         add_cppflags -U__STRICT_ANSI__
2508         ;;
2509     linux)
2510         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2511         enable dv1394
2512         ;;
2513     irix*)
2514         target_os=irix
2515         ranlib="echo ignoring ranlib"
2516         ;;
2517     os/2*)
2518         strip="lxlite -CS"
2519         ln_s="cp -f"
2520         objformat="aout"
2521         add_cppflags -D_GNU_SOURCE
2522         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2523         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2524         FFSERVERLDFLAGS=""
2525         LIBSUF="_s.a"
2526         SLIBPREF=""
2527         SLIBSUF=".dll"
2528         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2529         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2530         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2531           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2532           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2533           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2534           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2535           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2536         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2537           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2538         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2539         enable dos_paths
2540         ;;
2541     gnu/kfreebsd)
2542         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2543         ;;
2544     gnu)
2545         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2546         ;;
2547     qnx)
2548         add_cppflags -D_QNX_SOURCE
2549         network_extralibs="-lsocket"
2550         ;;
2551     symbian)
2552         SLIBSUF=".dll"
2553         enable dos_paths
2554         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2555         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2556         add_ldflags -Wl,--target1-abs,--no-undefined \
2557                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2558                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2559         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2560                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2561                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2562         ;;
2563     none)
2564         ;;
2565     *)
2566         die "Unknown OS '$target_os'."
2567         ;;
2568 esac
2569
2570 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2571
2572 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2573
2574 set_default $PATHS_LIST
2575
2576 # we need to build at least one lib type
2577 if ! enabled_any static shared; then
2578     cat <<EOF
2579 At least one library type must be built.
2580 Specify --enable-static to build the static libraries or --enable-shared to
2581 build the shared libraries as well. To only build the shared libraries specify
2582 --disable-static in addition to --enable-shared.
2583 EOF
2584     exit 1;
2585 fi
2586
2587 die_license_disabled() {
2588     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2589 }
2590
2591 die_license_disabled gpl libx264
2592 die_license_disabled gpl libxavs
2593 die_license_disabled gpl libxvid
2594 die_license_disabled gpl x11grab
2595
2596 die_license_disabled nonfree libfaac
2597
2598 die_license_disabled version3 libopencore_amrnb
2599 die_license_disabled version3 libopencore_amrwb
2600 die_license_disabled version3 libvo_aacenc
2601 die_license_disabled version3 libvo_amrwbenc
2602
2603 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2604
2605 disabled optimizations || check_cflags -fomit-frame-pointer
2606
2607 enable_pic() {
2608     enable pic
2609     add_cppflags -DPIC
2610     add_cflags   -fPIC
2611     add_asflags  -fPIC
2612 }
2613
2614 enabled pic && enable_pic
2615
2616 check_cc <<EOF || die "Symbol mangling check failed."
2617 int ff_extern;
2618 EOF
2619 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2620 extern_prefix=${sym%%ff_extern*}
2621
2622 check_cc <<EOF && enable inline_asm
2623 void foo(void) { __asm__ volatile ("" ::); }
2624 EOF
2625
2626 _restrict=
2627 for restrict_keyword in restrict __restrict__ __restrict; do
2628     check_cc <<EOF && _restrict=$restrict_keyword && break
2629 void foo(char * $restrict_keyword p);
2630 EOF
2631 done
2632
2633 check_cc <<EOF && enable attribute_packed
2634 struct { int x; } __attribute__((packed)) x;
2635 EOF
2636
2637 check_cc <<EOF && enable attribute_may_alias
2638 union { int x; } __attribute__((may_alias)) x;
2639 EOF
2640
2641 check_cc <<EOF || die "endian test failed"
2642 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2643 EOF
2644 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2645
2646 if enabled alpha; then
2647
2648     check_cflags -mieee
2649
2650 elif enabled arm; then
2651
2652     enabled thumb && check_cflags -mthumb || check_cflags -marm
2653     nogas=die
2654
2655     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2656         enable vfp_args
2657     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2658         case "${cross_prefix:-$cc}" in
2659             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2660             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2661 __asm__ (".eabi_attribute 28, 1");
2662 int main(void) { return 0; }
2663 EOF
2664         esac
2665         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2666     fi
2667
2668     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2669     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2670     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2671     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2672     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2673     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2674     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2675
2676     enabled_all armv6t2 shared !pic && enable_pic
2677
2678 elif enabled mips; then
2679
2680     check_asm loongson '"dmult.g $1, $2, $3"'
2681     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2682
2683 elif enabled ppc; then
2684
2685     enable local_aligned_8 local_aligned_16
2686
2687     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2688     check_asm ibm_asm   '"add 0, 0, 0"'
2689     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2690     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2691
2692     # AltiVec flags: The FSF version of GCC differs from the Apple version
2693     if enabled altivec; then
2694         nogas=warn
2695         check_cflags -maltivec -mabi=altivec &&
2696         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2697         check_cflags -faltivec
2698
2699         # check if our compiler supports Motorola AltiVec C API
2700         check_cc <<EOF || disable altivec
2701 $inc_altivec_h
2702 int main(void) {
2703     vector signed int v1, v2, v3;
2704     v1 = vec_add(v2,v3);
2705     return 0;
2706 }
2707 EOF
2708
2709         # check if our compiler supports braces for vector declarations
2710         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2711 $inc_altivec_h
2712 int main (void) { (vector int) {1}; return 0; }
2713 EOF
2714     fi
2715
2716 elif enabled sparc; then
2717
2718     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2719         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2720
2721 elif enabled x86; then
2722
2723     enable local_aligned_8 local_aligned_16
2724
2725     # check whether EBP is available on x86
2726     # As 'i' is stored on the stack, this program will crash
2727     # if the base pointer is used to access it because the
2728     # base pointer is cleared in the inline assembly code.
2729     check_exec_crash <<EOF && enable ebp_available
2730     volatile int i=0;
2731     __asm__ volatile (
2732         "xorl %%ebp, %%ebp"
2733     ::: "%ebp");
2734     return i;
2735 EOF
2736
2737     # check whether EBX is available on x86
2738     check_asm ebx_available '""::"b"(0)' &&
2739         check_asm ebx_available '"":::"%ebx"'
2740
2741     # check whether xmm clobbers are supported
2742     check_asm xmm_clobbers '"":::"%xmm0"'
2743
2744     # check whether binutils is new enough to compile SSSE3/MMX2
2745     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2746     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2747
2748     check_asm bswap '"bswap %%eax" ::: "%eax"'
2749
2750     if ! disabled_any asm mmx yasm; then
2751         if check_cmd $yasmexe --version; then
2752             enabled x86_64 && yasm_extra="-m amd64"
2753             yasm_debug="-g dwarf2"
2754         elif check_cmd nasm -v; then
2755             yasmexe=nasm
2756             yasm_debug="-g -F dwarf"
2757             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2758         fi
2759
2760         YASMFLAGS="-f $objformat $yasm_extra"
2761         enabled pic               && append YASMFLAGS "-DPIC"
2762         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2763         case "$objformat" in
2764             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2765         esac
2766
2767         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2768             die "yasm not found, use --disable-yasm for a crippled build"
2769         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2770     fi
2771
2772     case "$cpu" in
2773         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2774             disable fast_clz
2775         ;;
2776     esac
2777
2778 fi
2779
2780 if enabled asm; then
2781     as=${gas:=$as}
2782     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2783         $nogas "GNU assembler not found, install gas-preprocessor"
2784 fi
2785
2786 check_ldflags -Wl,--as-needed
2787
2788 if check_func dlopen; then
2789     ldl=
2790 elif check_func dlopen -ldl; then
2791     ldl=-ldl
2792 fi
2793
2794 if enabled network; then
2795     check_type "sys/types.h sys/socket.h" socklen_t
2796     check_type netdb.h "struct addrinfo"
2797     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2798     check_type netinet/in.h "struct sockaddr_in6"
2799     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2800     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2801     # Prefer arpa/inet.h over winsock2
2802     if check_header arpa/inet.h ; then
2803         check_func closesocket
2804     elif check_header winsock2.h ; then
2805         check_func_headers winsock2.h closesocket -lws2 && \
2806             network_extralibs="-lws2" || \
2807         { check_func_headers winsock2.h closesocket -lws2_32 && \
2808             network_extralibs="-lws2_32"; }
2809         check_type ws2tcpip.h socklen_t
2810         check_type ws2tcpip.h "struct addrinfo"
2811         check_type ws2tcpip.h "struct ipv6_mreq"
2812         check_type ws2tcpip.h "struct sockaddr_in6"
2813         check_type ws2tcpip.h "struct sockaddr_storage"
2814         check_struct winsock2.h "struct sockaddr" sa_len
2815     else
2816         disable network
2817     fi
2818 fi
2819
2820 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2821 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2822
2823 check_func  fcntl
2824 check_func  fork
2825 check_func  getaddrinfo $network_extralibs
2826 check_func  gethrtime
2827 check_func  getrusage
2828 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2829 check_func  inet_aton $network_extralibs
2830 check_func  isatty
2831 check_func  localtime_r
2832 check_func  ${malloc_prefix}memalign            && enable memalign
2833 check_func  mkstemp
2834 check_func  mmap
2835 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2836 check_func  setrlimit
2837 check_func  strerror_r
2838 check_func  strptime
2839 check_func  strtok_r
2840 check_func_headers conio.h kbhit
2841 check_func_headers io.h setmode
2842 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2843 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2844 check_func_headers windows.h GetProcessTimes
2845 check_func_headers windows.h MapViewOfFile
2846 check_func_headers windows.h VirtualAlloc
2847
2848 check_header dlfcn.h
2849 check_header dxva2api.h
2850 check_header libcrystalhd/libcrystalhd_if.h
2851 check_header malloc.h
2852 check_header poll.h
2853 check_header sys/mman.h
2854 check_header sys/resource.h
2855 check_header sys/select.h
2856 check_header termios.h
2857 check_header vdpau/vdpau.h
2858 check_header vdpau/vdpau_x11.h
2859 check_header X11/extensions/XvMClib.h
2860
2861 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2862
2863 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2864 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2865
2866 # check for some common methods of building with pthread support
2867 # do this before the optional library checks as some of them require pthreads
2868 if ! disabled pthreads && ! enabled w32threads; then
2869     enable pthreads
2870     if check_func pthread_create; then
2871         :
2872     elif check_func pthread_create -pthread; then
2873         add_cflags -pthread
2874         add_extralibs -pthread
2875     elif check_func pthread_create -pthreads; then
2876         add_cflags -pthreads
2877         add_extralibs -pthreads
2878     elif check_func pthread_create -lpthreadGC2; then
2879         add_extralibs -lpthreadGC2
2880     elif ! check_lib pthread.h pthread_create -lpthread; then
2881         disable pthreads
2882     fi
2883 fi
2884
2885 for thread in $THREADS_LIST; do
2886     if enabled $thread; then
2887         test -n "$thread_type" &&
2888             die "ERROR: Only one thread type must be selected." ||
2889             thread_type="$thread"
2890     fi
2891 done
2892
2893 check_lib math.h sin -lm && LIBM="-lm"
2894 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2895 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2896
2897 check_mathfunc exp2
2898 check_mathfunc exp2f
2899 check_mathfunc llrint
2900 check_mathfunc llrintf
2901 check_mathfunc log2
2902 check_mathfunc log2f
2903 check_mathfunc lrint
2904 check_mathfunc lrintf
2905 check_mathfunc round
2906 check_mathfunc roundf
2907 check_mathfunc trunc
2908 check_mathfunc truncf
2909
2910 # these are off by default, so fail if requested and not available
2911 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2912 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2913 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2914 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2915 enabled libdirac   && require_pkg_config dirac                          \
2916     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2917     "dirac_decoder_init dirac_encoder_init"
2918 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2919 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2920 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2921 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2922 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2923 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2924 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2925 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2926 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2927 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2928 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2929 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2930 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2931 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2932 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2933 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2934 enabled libvpx     && {
2935     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2936                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2937     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2938                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2939 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2940                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2941                         die "ERROR: libx264 version must be >= 0.115."; }
2942 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2943 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2944 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2945                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2946                         die "ERROR: openal not found"; } &&
2947                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2948                         die "ERROR: openal version must be 1.1 or compatible"; }
2949 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2950
2951 SDL_CONFIG="${cross_prefix}sdl-config"
2952 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2953     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2954     enable sdl &&
2955     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2956 else
2957   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2958     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2959     sdl_libs=$("${SDL_CONFIG}" --libs)
2960     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2961     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2962     enable sdl &&
2963     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2964   fi
2965 fi
2966 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2967
2968 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2969
2970 check_header linux/fb.h
2971 check_header linux/videodev.h
2972 check_header linux/videodev2.h
2973 check_header sys/videoio.h
2974
2975 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2976 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2977 # w32api 3.12 had it defined wrong
2978 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2979
2980 check_type "dshow.h" IBaseFilter
2981
2982 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2983 { check_header dev/bktr/ioctl_meteor.h &&
2984   check_header dev/bktr/ioctl_bt848.h; } ||
2985 { check_header machine/ioctl_meteor.h &&
2986   check_header machine/ioctl_bt848.h; } ||
2987 { check_header dev/video/meteor/ioctl_meteor.h &&
2988   check_header dev/video/bktr/ioctl_bt848.h; } ||
2989 check_header dev/ic/bt8xx.h
2990
2991 check_header sndio.h
2992 if check_struct sys/soundcard.h audio_buf_info bytes; then
2993     enable_safe sys/soundcard.h
2994 else
2995     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2996     #include <sys/soundcard.h>
2997     audio_buf_info abc;
2998 EOF
2999 fi
3000 check_header soundcard.h
3001
3002 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3003
3004 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3005
3006 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3007
3008 enabled x11grab                         &&
3009 check_header X11/Xlib.h                 &&
3010 check_header X11/extensions/XShm.h      &&
3011 check_header X11/extensions/Xfixes.h    &&
3012 check_func XOpenDisplay -lX11           &&
3013 check_func XShmCreateImage -lX11 -lXext &&
3014 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3015
3016 if ! disabled vaapi; then
3017     check_lib va/va.h vaInitialize -lva && {
3018         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3019         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3020     } || disable vaapi
3021 fi
3022
3023 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3024 check_cpp_condition \
3025     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3026     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3027       disable vdpau; }
3028 fi
3029
3030 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3031
3032 # add some useful compiler flags if supported
3033 check_cflags -Wdeclaration-after-statement
3034 check_cflags -Wall
3035 check_cflags -Wno-parentheses
3036 check_cflags -Wno-switch
3037 check_cflags -Wno-format-zero-length
3038 check_cflags -Wdisabled-optimization
3039 check_cflags -Wpointer-arith
3040 check_cflags -Wredundant-decls
3041 check_cflags -Wno-pointer-sign
3042 check_cflags -Wcast-qual
3043 check_cflags -Wwrite-strings
3044 check_cflags -Wtype-limits
3045 check_cflags -Wundef
3046 check_cflags -Wmissing-prototypes
3047 check_cflags -Wno-pointer-to-int-cast
3048 enabled extra_warnings && check_cflags -Winline
3049
3050 # add some linker flags
3051 check_ldflags -Wl,--warn-common
3052 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3053 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3054
3055 echo "X{};" > $TMPV
3056 if test_ldflags -Wl,--version-script,$TMPV; then
3057     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3058     check_cc <<EOF && enable symver_asm_label
3059 void ff_foo(void) __asm__ ("av_foo@VERSION");
3060 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3061 EOF
3062     check_cc <<EOF && enable symver_gnu_asm
3063 __asm__(".symver ff_foo,av_foo@VERSION");
3064 void ff_foo(void) {}
3065 EOF
3066 fi
3067
3068 if [ -n "$optflags" ]; then
3069     add_cflags $optflags
3070 elif enabled small; then
3071     add_cflags $size_cflags
3072 elif enabled optimizations; then
3073     add_cflags $speed_cflags
3074 else
3075     add_cflags $noopt_cflags
3076 fi
3077 check_cflags -fno-math-errno
3078 check_cflags -fno-signed-zeros
3079
3080 if enabled icc; then
3081     # Just warnings, no remarks
3082     check_cflags -w1
3083     # -wd: Disable following warnings
3084     # 144, 167, 556: -Wno-pointer-sign
3085     # 1292: attribute "foo" ignored
3086     # 10006: ignoring unknown option -fno-signed-zeros
3087     # 10148: ignoring unknown option -Wno-parentheses
3088     # 10156: ignoring option '-W'; no argument required
3089     check_cflags -wd144,167,556,1292,10006,10148,10156
3090     # 11030: Warning unknown option --as-needed
3091     # 10156: ignoring option '-export'; no argument required
3092     check_ldflags -wd10156,11030
3093     # Allow to compile with optimizations
3094     check_ldflags -march=$cpu
3095     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3096     enable ebp_available
3097     if enabled x86_32; then
3098         test ${icc_version%%.*} -ge 11 && \
3099             check_cflags -falign-stack=maintain-16-byte || \
3100             disable aligned_stack
3101     fi
3102 elif enabled ccc; then
3103     # disable some annoying warnings
3104     add_cflags -msg_disable cvtu32to64
3105     add_cflags -msg_disable embedcomment
3106     add_cflags -msg_disable needconstext
3107     add_cflags -msg_disable nomainieee
3108     add_cflags -msg_disable ptrmismatch1
3109     add_cflags -msg_disable unreachcode
3110 elif enabled gcc; then
3111     check_cflags -fno-tree-vectorize
3112     check_cflags -Werror=implicit-function-declaration
3113     check_cflags -Werror=missing-prototypes
3114 elif enabled llvm_gcc; then
3115     check_cflags -mllvm -stack-alignment=16
3116 elif enabled clang; then
3117     check_cflags -mllvm -stack-alignment=16
3118     check_cflags -Qunused-arguments
3119 elif enabled armcc; then
3120     # 2523: use of inline assembler is deprecated
3121     add_cflags -W${armcc_opt},--diag_suppress=2523
3122     add_cflags -W${armcc_opt},--diag_suppress=1207
3123     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3124     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3125     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3126     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3127 elif enabled tms470; then
3128     add_cflags -pds=824 -pds=837
3129 elif enabled pathscale; then
3130     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3131 fi
3132
3133 enabled_any $THREADS_LIST      && enable threads
3134
3135 check_deps $CONFIG_LIST       \
3136            $CONFIG_EXTRA      \
3137            $HAVE_LIST         \
3138            $DECODER_LIST      \
3139            $ENCODER_LIST      \
3140            $HWACCEL_LIST      \
3141            $PARSER_LIST       \
3142            $BSF_LIST          \
3143            $DEMUXER_LIST      \
3144            $MUXER_LIST        \
3145            $FILTER_LIST       \
3146            $INDEV_LIST        \
3147            $OUTDEV_LIST       \
3148            $PROTOCOL_LIST     \
3149            $ACODEC_TESTS      \
3150            $VCODEC_TESTS      \
3151            $LAVF_TESTS        \
3152            $LAVFI_TESTS       \
3153            $SEEK_TESTS        \
3154
3155 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3156
3157 if test $target_os == "haiku"; then
3158     disable memalign
3159     disable posix_memalign
3160 fi
3161
3162 ! enabled_any memalign posix_memalign malloc_aligned &&
3163     enabled_any $need_memalign && enable memalign_hack
3164
3165 echo "install prefix            $prefix"
3166 echo "source path               $source_path"
3167 echo "C compiler                $cc"
3168 echo "ARCH                      $arch ($cpu)"
3169 if test "$build_suffix" != ""; then
3170     echo "build suffix              $build_suffix"
3171 fi
3172 if test "$extra_version" != ""; then
3173     echo "version string suffix     $extra_version"
3174 fi
3175 echo "big-endian                ${bigendian-no}"
3176 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3177 if enabled x86; then
3178     echo "${yasmexe}                      ${yasm-no}"
3179     echo "MMX enabled               ${mmx-no}"
3180     echo "MMX2 enabled              ${mmx2-no}"
3181     echo "3DNow! enabled            ${amd3dnow-no}"
3182     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3183     echo "SSE enabled               ${sse-no}"
3184     echo "SSSE3 enabled             ${ssse3-no}"
3185     echo "AVX enabled               ${avx-no}"
3186     echo "CMOV enabled              ${cmov-no}"
3187     echo "CMOV is fast              ${fast_cmov-no}"
3188     echo "EBX available             ${ebx_available-no}"
3189     echo "EBP available             ${ebp_available-no}"
3190 fi
3191 if enabled arm; then
3192     echo "ARMv5TE enabled           ${armv5te-no}"
3193     echo "ARMv6 enabled             ${armv6-no}"
3194     echo "ARMv6T2 enabled           ${armv6t2-no}"
3195     echo "ARM VFP enabled           ${armvfp-no}"
3196     echo "IWMMXT enabled            ${iwmmxt-no}"
3197     echo "NEON enabled              ${neon-no}"
3198 fi
3199 if enabled mips; then
3200     echo "MMI enabled               ${mmi-no}"
3201 fi
3202 if enabled ppc; then
3203     echo "AltiVec enabled           ${altivec-no}"
3204     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3205     echo "dcbzl available           ${dcbzl-no}"
3206 fi
3207 if enabled sparc; then
3208     echo "VIS enabled               ${vis-no}"
3209 fi
3210 echo "debug symbols             ${debug-no}"
3211 echo "strip symbols             ${stripping-no}"
3212 echo "optimize for size         ${small-no}"
3213 echo "optimizations             ${optimizations-no}"
3214 echo "static                    ${static-no}"
3215 echo "shared                    ${shared-no}"
3216 echo "postprocessing support    ${postproc-no}"
3217 echo "new filter support        ${avfilter-no}"
3218 echo "network support           ${network-no}"
3219 echo "threading support         ${thread_type-no}"
3220 echo "SDL support               ${sdl-no}"
3221 echo "Sun medialib support      ${mlib-no}"
3222 echo "libdxva2 enabled          ${dxva2-no}"
3223 echo "libva enabled             ${vaapi-no}"
3224 echo "libvdpau enabled          ${vdpau-no}"
3225 echo "AVISynth enabled          ${avisynth-no}"
3226 echo "libcelt enabled           ${libcelt-no}"
3227 echo "frei0r enabled            ${frei0r-no}"
3228 echo "libdc1394 support         ${libdc1394-no}"
3229 echo "libdirac enabled          ${libdirac-no}"
3230 echo "libfaac enabled           ${libfaac-no}"
3231 echo "libgsm enabled            ${libgsm-no}"
3232 echo "libmp3lame enabled        ${libmp3lame-no}"
3233 echo "libnut enabled            ${libnut-no}"
3234 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3235 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3236 echo "libopencv support         ${libopencv-no}"
3237 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3238 echo "librtmp enabled           ${librtmp-no}"
3239 echo "libschroedinger enabled   ${libschroedinger-no}"
3240 echo "libspeex enabled          ${libspeex-no}"
3241 echo "libtheora enabled         ${libtheora-no}"
3242 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3243 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3244 echo "libvorbis enabled         ${libvorbis-no}"
3245 echo "libvpx enabled            ${libvpx-no}"
3246 echo "libx264 enabled           ${libx264-no}"
3247 echo "libxavs enabled           ${libxavs-no}"
3248 echo "libxvid enabled           ${libxvid-no}"
3249 echo "openal enabled            ${openal-no}"
3250 echo "zlib enabled              ${zlib-no}"
3251 echo "bzlib enabled             ${bzlib-no}"
3252 echo
3253
3254 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3255     echo "Enabled ${type}s:"
3256     eval list=\$$(toupper $type)_LIST
3257     print_enabled '_*' $list | sort | pr -r -3 -t
3258     echo
3259 done
3260
3261 license="LGPL version 2.1 or later"
3262 if enabled nonfree; then
3263     license="nonfree and unredistributable"
3264 elif enabled gplv3; then
3265     license="GPL version 3 or later"
3266 elif enabled lgplv3; then
3267     license="LGPL version 3 or later"
3268 elif enabled gpl; then
3269     license="GPL version 2 or later"
3270 fi
3271
3272 echo "License: $license"
3273
3274 echo "Creating config.mak and config.h..."
3275
3276 test -e Makefile || $ln_s "$source_path/Makefile" .
3277
3278 enabled stripping || strip="echo skipping strip"
3279
3280 config_files="$TMPH config.mak"
3281
3282 cat > config.mak <<EOF
3283 # Automatically generated by configure - do not modify!
3284 ifndef FFMPEG_CONFIG_MAK
3285 FFMPEG_CONFIG_MAK=1
3286 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3287 prefix=$prefix
3288 LIBDIR=\$(DESTDIR)$libdir
3289 SHLIBDIR=\$(DESTDIR)$shlibdir
3290 INCDIR=\$(DESTDIR)$incdir
3291 BINDIR=\$(DESTDIR)$bindir
3292 DATADIR=\$(DESTDIR)$datadir
3293 MANDIR=\$(DESTDIR)$mandir
3294 SRC_PATH=$source_path
3295 ifndef MAIN_MAKEFILE
3296 SRC_PATH:=\$(SRC_PATH:.%=..%)
3297 endif
3298 CC_IDENT=$cc_ident
3299 ARCH=$arch
3300 CC=$cc
3301 AS=$as
3302 LD=$ld
3303 DEPCC=$dep_cc
3304 YASM=$yasmexe
3305 YASMDEP=$yasmexe
3306 AR=$ar
3307 RANLIB=$ranlib
3308 CP=cp -p
3309 LN_S=$ln_s
3310 STRIP=$strip
3311 CPPFLAGS=$CPPFLAGS
3312 CFLAGS=$CFLAGS
3313 ASFLAGS=$ASFLAGS
3314 AS_O=$CC_O
3315 CC_O=$CC_O
3316 LDFLAGS=$LDFLAGS
3317 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3318 SHFLAGS=$SHFLAGS
3319 YASMFLAGS=$YASMFLAGS
3320 BUILDSUF=$build_suffix
3321 FULLNAME=$FULLNAME
3322 LIBPREF=$LIBPREF
3323 LIBSUF=$LIBSUF
3324 LIBNAME=$LIBNAME
3325 SLIBPREF=$SLIBPREF
3326 SLIBSUF=$SLIBSUF
3327 EXESUF=$EXESUF
3328 EXTRA_VERSION=$extra_version
3329 DEPFLAGS=$DEPFLAGS
3330 CCDEP=$CCDEP
3331 ASDEP=$ASDEP
3332 CC_DEPFLAGS=$CC_DEPFLAGS
3333 AS_DEPFLAGS=$AS_DEPFLAGS
3334 HOSTCC=$host_cc
3335 HOSTCFLAGS=$host_cflags
3336 HOSTEXESUF=$HOSTEXESUF
3337 HOSTLDFLAGS=$host_ldflags
3338 HOSTLIBS=$host_libs
3339 TARGET_EXEC=$target_exec
3340 TARGET_PATH=$target_path
3341 SDL_LIBS=$sdl_libs
3342 SDL_CFLAGS=$sdl_cflags
3343 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3344 EXTRALIBS=$extralibs
3345 INSTALL=$install
3346 LIBTARGET=${LIBTARGET}
3347 SLIBNAME=${SLIBNAME}
3348 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3349 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3350 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3351 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3352 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3353 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3354 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3355 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3356 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3357 EOF
3358
3359 get_version(){
3360     name=$1
3361     file=$source_path/$2
3362     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3363     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3364     lcname=$(tolower $name)
3365     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3366     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3367 }
3368
3369 get_version LIBSWSCALE  libswscale/swscale.h
3370 get_version LIBPOSTPROC libpostproc/postprocess.h
3371 get_version LIBAVCODEC  libavcodec/version.h
3372 get_version LIBAVDEVICE libavdevice/avdevice.h
3373 get_version LIBAVFORMAT libavformat/version.h
3374 get_version LIBAVUTIL   libavutil/avutil.h
3375 get_version LIBAVFILTER libavfilter/avfilter.h
3376
3377 cat > $TMPH <<EOF
3378 /* Automatically generated by configure - do not modify! */
3379 #ifndef FFMPEG_CONFIG_H
3380 #define FFMPEG_CONFIG_H
3381 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3382 #define FFMPEG_LICENSE "$(c_escape $license)"
3383 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3384 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3385 #define CC_TYPE "$cc_type"
3386 #define CC_VERSION $cc_version
3387 #define restrict $_restrict
3388 #define EXTERN_PREFIX "${extern_prefix}"
3389 #define EXTERN_ASM ${extern_prefix}
3390 #define SLIBSUF "$SLIBSUF"
3391 EOF
3392
3393 test -n "$malloc_prefix" &&
3394     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3395
3396 if enabled small || disabled optimizations; then
3397     echo "#undef  av_always_inline"  >> $TMPH
3398     if enabled small; then
3399         echo "#define av_always_inline inline"  >> $TMPH
3400     else
3401         echo "#define av_always_inline av_unused"  >> $TMPH
3402     fi
3403 fi
3404
3405 if enabled yasm; then
3406     append config_files $TMPASM
3407     printf '' >$TMPASM
3408 fi
3409
3410 print_config ARCH_   "$config_files" $ARCH_LIST
3411 print_config HAVE_   "$config_files" $HAVE_LIST
3412 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3413                                      $CONFIG_EXTRA      \
3414                                      $DECODER_LIST      \
3415                                      $ENCODER_LIST      \
3416                                      $HWACCEL_LIST      \
3417                                      $PARSER_LIST       \
3418                                      $BSF_LIST          \
3419                                      $DEMUXER_LIST      \
3420                                      $MUXER_LIST        \
3421                                      $FILTER_LIST       \
3422                                      $PROTOCOL_LIST     \
3423                                      $INDEV_LIST        \
3424                                      $OUTDEV_LIST       \
3425
3426 cat >>config.mak <<EOF
3427 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3428 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3429 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3430 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3431 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3432 EOF
3433
3434 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3435 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3436
3437 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3438 cp_if_changed $TMPH config.h
3439 touch .config
3440
3441 enabled yasm && cp_if_changed $TMPASM config.asm
3442
3443 cat > $TMPH <<EOF
3444 /* Generated by ffconf */
3445 #ifndef AVUTIL_AVCONFIG_H
3446 #define AVUTIL_AVCONFIG_H
3447 EOF
3448
3449 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3450
3451 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3452
3453 cp_if_changed $TMPH libavutil/avconfig.h
3454
3455 test -n "$WARNINGS" && printf "\n$WARNINGS"
3456
3457 # build pkg-config files
3458
3459 pkgconfig_generate(){
3460 name=$1
3461 shortname=${name#lib}${build_suffix}
3462 comment=$2
3463 version=$3
3464 libs=$4
3465 requires=$5
3466 enabled ${name#lib} || return 0
3467 mkdir -p $name
3468 cat <<EOF > $name/$name.pc
3469 prefix=$prefix
3470 exec_prefix=\${prefix}
3471 libdir=$libdir
3472 includedir=$incdir
3473
3474 Name: $name
3475 Description: $comment
3476 Version: $version
3477 Requires: $(enabled shared || echo $requires)
3478 Requires.private: $(enabled shared && echo $requires)
3479 Conflicts:
3480 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3481 Libs.private: $(enabled shared && echo $libs)
3482 Cflags: -I\${includedir}
3483 EOF
3484 cat <<EOF > $name/$name-uninstalled.pc
3485 prefix=
3486 exec_prefix=
3487 libdir=\${pcfiledir}
3488 includedir=${source_path}
3489
3490 Name: $name
3491 Description: $comment
3492 Version: $version
3493 Requires: $requires
3494 Conflicts:
3495 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3496 Cflags: -I\${includedir}
3497 EOF
3498 }
3499
3500 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3501 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3502 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3503 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3504 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3505 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3506 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"