git.sesse.net Git - ffmpeg/blob - 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 vorbis_decoder_select="mdct"
1378 vorbis_encoder_select="mdct"
1379 vp6_decoder_select="huffman"
1380 vp6a_decoder_select="vp6_decoder"
1381 vp6f_decoder_select="vp6_decoder"
1382 vp8_decoder_select="h264pred"
1383 wmapro_decoder_select="mdct sinewin"
1384 wmav1_decoder_select="mdct sinewin"
1385 wmav1_encoder_select="mdct sinewin"
1386 wmav2_decoder_select="mdct sinewin"
1387 wmav2_encoder_select="mdct sinewin"
1388 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1389 wmv1_decoder_select="h263_decoder"
1390 wmv1_encoder_select="h263_encoder"
1391 wmv2_decoder_select="h263_decoder"
1392 wmv2_encoder_select="h263_encoder"
1393 wmv3_decoder_select="vc1_decoder"
1394 wmv3_crystalhd_decoder_select="crystalhd"
1395 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1396 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1397 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1398 zlib_decoder_select="zlib"
1399 zlib_encoder_select="zlib"
1400 zmbv_decoder_select="zlib"
1401 zmbv_encoder_select="zlib"
1402
1403 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1404 vaapi_deps="va_va_h"
1405 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1406
1407 # parsers
1408 h264_parser_select="golomb h264dsp h264pred"
1409
1410 # external libraries
1411 libcelt_decoder_deps="libcelt"
1412 libdirac_decoder_deps="libdirac !libschroedinger"
1413 libdirac_encoder_deps="libdirac"
1414 libfaac_encoder_deps="libfaac"
1415 libgsm_decoder_deps="libgsm"
1416 libgsm_encoder_deps="libgsm"
1417 libgsm_ms_decoder_deps="libgsm"
1418 libgsm_ms_encoder_deps="libgsm"
1419 libmp3lame_encoder_deps="libmp3lame"
1420 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1421 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1422 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1423 libopenjpeg_decoder_deps="libopenjpeg"
1424 libschroedinger_decoder_deps="libschroedinger"
1425 libschroedinger_encoder_deps="libschroedinger"
1426 libspeex_decoder_deps="libspeex"
1427 libtheora_encoder_deps="libtheora"
1428 libvo_aacenc_encoder_deps="libvo_aacenc"
1429 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1430 libvorbis_encoder_deps="libvorbis"
1431 libvpx_decoder_deps="libvpx"
1432 libvpx_encoder_deps="libvpx"
1433 libx264_encoder_deps="libx264"
1434 libxavs_encoder_deps="libxavs"
1435 libxvid_encoder_deps="libxvid"
1436
1437 # demuxers / muxers
1438 ac3_demuxer_select="ac3_parser"
1439 asf_stream_muxer_select="asf_muxer"
1440 avisynth_demuxer_deps="avisynth"
1441 dirac_demuxer_select="dirac_parser"
1442 eac3_demuxer_select="ac3_parser"
1443 flac_demuxer_select="flac_parser"
1444 ipod_muxer_select="mov_muxer"
1445 libnut_demuxer_deps="libnut"
1446 libnut_muxer_deps="libnut"
1447 matroska_audio_muxer_select="matroska_muxer"
1448 matroska_demuxer_suggest="zlib bzlib"
1449 mov_demuxer_suggest="zlib"
1450 mp3_demuxer_select="mpegaudio_parser"
1451 mp4_muxer_select="mov_muxer"
1452 mpegtsraw_demuxer_select="mpegts_demuxer"
1453 mxf_d10_muxer_select="mxf_muxer"
1454 ogg_demuxer_select="golomb"
1455 psp_muxer_select="mov_muxer"
1456 rtp_demuxer_select="sdp_demuxer"
1457 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1458 rtsp_demuxer_select="http_protocol rtpdec"
1459 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1460 sap_demuxer_select="sdp_demuxer"
1461 sap_muxer_select="rtp_muxer rtp_protocol"
1462 sdp_demuxer_select="rtpdec"
1463 spdif_muxer_select="aac_parser"
1464 tg2_muxer_select="mov_muxer"
1465 tgp_muxer_select="mov_muxer"
1466 w64_demuxer_deps="wav_demuxer"
1467
1468 # indevs / outdevs
1469 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1470 alsa_outdev_deps="alsa_asoundlib_h"
1471 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1472 dshow_indev_deps="IBaseFilter"
1473 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1474 dv1394_indev_deps="dv1394 dv_demuxer"
1475 fbdev_indev_deps="linux_fb_h"
1476 jack_indev_deps="jack_jack_h sem_timedwait"
1477 lavfi_indev_deps="avfilter"
1478 libdc1394_indev_deps="libdc1394"
1479 openal_indev_deps="openal"
1480 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1481 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1482 sdl_outdev_deps="sdl"
1483 sndio_indev_deps="sndio_h"
1484 sndio_outdev_deps="sndio_h"
1485 v4l_indev_deps="linux_videodev_h"
1486 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1487 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1488 vfwcap_indev_extralibs="-lavicap32"
1489 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1490 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1491
1492 # protocols
1493 gopher_protocol_deps="network"
1494 http_protocol_deps="network"
1495 http_protocol_select="tcp_protocol"
1496 mmsh_protocol_select="http_protocol"
1497 mmst_protocol_deps="network"
1498 rtmp_protocol_select="tcp_protocol"
1499 rtp_protocol_select="udp_protocol"
1500 tcp_protocol_deps="network"
1501 udp_protocol_deps="network"
1502
1503 # filters
1504 aformat_filter_deps="strtok_r"
1505 blackframe_filter_deps="gpl"
1506 boxblur_filter_deps="gpl"
1507 cropdetect_filter_deps="gpl"
1508 delogo_filter_deps="gpl"
1509 drawtext_filter_deps="libfreetype"
1510 frei0r_filter_deps="frei0r dlopen strtok_r"
1511 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1512 hqdn3d_filter_deps="gpl"
1513 movie_filter_deps="avcodec avformat"
1514 mp_filter_deps="gpl avcodec"
1515 mptestsrc_filter_deps="gpl"
1516 negate_filter_deps="lut_filter"
1517 ocv_filter_deps="libopencv"
1518 scale_filter_deps="swscale"
1519 yadif_filter_deps="gpl"
1520
1521 # libraries
1522 avdevice_deps="avcodec avformat"
1523 avformat_deps="avcodec"
1524 postproc_deps="gpl"
1525
1526 # programs
1527 ffmpeg_deps="avcodec avformat swscale"
1528 ffmpeg_select="buffer_filter buffersink_filter"
1529 av_deps="avcodec avformat swscale"
1530 av_select="buffer_filter"
1531 ffplay_deps="avcodec avformat swscale sdl"
1532 ffplay_select="buffersink_filter rdft"
1533 ffprobe_deps="avcodec avformat"
1534 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1535 ffserver_extralibs='$ldl'
1536
1537 doc_deps="texi2html"
1538
1539 # tests
1540
1541 test_deps(){
1542     suf1=$1
1543     suf2=$2
1544     shift 2
1545     for v; do
1546         dep=${v%=*}
1547         tests=${v#*=}
1548         for name in ${tests}; do
1549             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1550         done
1551     done
1552 }
1553
1554 test_deps _encoder _decoder                                             \
1555     adpcm_g726=g726                                                     \
1556     adpcm_ima_qt                                                        \
1557     adpcm_ima_wav                                                       \
1558     adpcm_ms                                                            \
1559     adpcm_swf                                                           \
1560     adpcm_yamaha=adpcm_yam                                              \
1561     alac                                                                \
1562     asv1                                                                \
1563     asv2                                                                \
1564     bmp                                                                 \
1565     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1566     dvvideo="dv dv50"                                                   \
1567     ffv1                                                                \
1568     flac                                                                \
1569     flashsv                                                             \
1570     flv                                                                 \
1571     gif                                                                 \
1572     h261                                                                \
1573     h263="h263 h263p"                                                   \
1574     huffyuv                                                             \
1575     jpegls                                                              \
1576     mjpeg="jpg mjpeg ljpeg"                                             \
1577     mp2                                                                 \
1578     mpeg1video="mpeg mpeg1b"                                            \
1579     mpeg2video="mpeg2 mpeg2thread"                                      \
1580     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1581     msmpeg4v3=msmpeg4                                                   \
1582     msmpeg4v2                                                           \
1583     pbm=pbmpipe                                                         \
1584     pcx                                                                 \
1585     pgm="pgm pgmpipe"                                                   \
1586     png                                                                 \
1587     ppm="ppm ppmpipe"                                                   \
1588     rawvideo="rgb yuv"                                                  \
1589     roq                                                                 \
1590     rv10                                                                \
1591     rv20                                                                \
1592     sgi                                                                 \
1593     snow="snow snowll"                                                  \
1594     svq1                                                                \
1595     targa=tga                                                           \
1596     tiff                                                                \
1597     wmav1                                                               \
1598     wmav2                                                               \
1599     wmv1                                                                \
1600     wmv2                                                                \
1601
1602 test_deps _muxer _demuxer                                               \
1603     aiff                                                                \
1604     pcm_alaw=alaw                                                       \
1605     asf                                                                 \
1606     au                                                                  \
1607     avi                                                                 \
1608     dv=dv_fmt                                                           \
1609     ffm                                                                 \
1610     flv=flv_fmt                                                         \
1611     gxf                                                                 \
1612     matroska=mkv                                                        \
1613     mmf                                                                 \
1614     mov                                                                 \
1615     pcm_mulaw=mulaw                                                     \
1616     mxf="mxf mxf_d10"                                                   \
1617     nut                                                                 \
1618     ogg                                                                 \
1619     rawvideo=pixfmt                                                     \
1620     rm                                                                  \
1621     swf                                                                 \
1622     mpegts=ts                                                           \
1623     voc                                                                 \
1624     wav                                                                 \
1625     yuv4mpegpipe=yuv4mpeg                                               \
1626
1627 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1628 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1629
1630 # default parameters
1631
1632 logfile="config.log"
1633
1634 # installation paths
1635 prefix_default="/usr/local"
1636 bindir_default='${prefix}/bin'
1637 datadir_default='${prefix}/share/ffmpeg'
1638 incdir_default='${prefix}/include'
1639 libdir_default='${prefix}/lib'
1640 mandir_default='${prefix}/share/man'
1641 shlibdir_default="$libdir_default"
1642
1643 # toolchain
1644 ar_default="ar"
1645 cc_default="gcc"
1646 cc_version=\"unknown\"
1647 host_cc_default="gcc"
1648 install="install"
1649 ln_s="ln -sf"
1650 nm_default="nm"
1651 objformat="elf"
1652 pkg_config_default=pkg-config
1653 ranlib="ranlib"
1654 strip_default="strip"
1655 yasmexe="yasm"
1656 nogas=":"
1657
1658 nm_opts='-g'
1659
1660 # machine
1661 arch_default=$(uname -m)
1662 cpu="generic"
1663
1664 # OS
1665 target_os_default=$(tolower $(uname -s))
1666 host_os=$target_os_default
1667
1668 # configurable options
1669 enable avcodec
1670 enable avdevice
1671 enable avfilter
1672 enable avformat
1673 enable avutil
1674 enable asm
1675 enable debug
1676 enable doc
1677 enable fastdiv
1678 enable ffmpeg
1679 enable avconv
1680 enable ffplay
1681 enable ffprobe
1682 enable ffserver
1683 enable network
1684 enable optimizations
1685 enable postproc
1686 enable protocols
1687 enable static
1688 enable stripping
1689 enable swscale
1690 enable swscale_alpha
1691
1692 # build settings
1693 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1694 FFSERVERLDFLAGS=-Wl,-E
1695 LIBPREF="lib"
1696 LIBSUF=".a"
1697 FULLNAME='$(NAME)$(BUILDSUF)'
1698 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1699 SLIBPREF="lib"
1700 SLIBSUF=".so"
1701 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1702 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1703 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1704 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1705 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1706 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1707
1708 AS_O='-o $@'
1709 CC_O='-o $@'
1710
1711 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1712 host_libs='-lm'
1713
1714 target_path='$(CURDIR)'
1715
1716 # since the object filename is not given with the -MM flag, the compiler
1717 # is only able to print the basename, and we must add the path ourselves
1718 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1719 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1720
1721 # find source path
1722 if test -f configure; then
1723     source_path=.
1724 else
1725     source_path=$(cd $(dirname "$0"); pwd)
1726     echo "$source_path" | grep -q '[[:blank:]]' &&
1727         die "Out of tree builds are impossible with whitespace in source path."
1728     test -e "$source_path/config.h" &&
1729         die "Out of tree builds are impossible with config.h in source dir."
1730 fi
1731
1732 for v in "$@"; do
1733     r=${v#*=}
1734     l=${v%"$r"}
1735     r=$(sh_quote "$r")
1736     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1737 done
1738
1739 find_things(){
1740     thing=$1
1741     pattern=$2
1742     file=$source_path/$3
1743     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1744 }
1745
1746 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1747 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1748 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1749 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1750 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1751 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1752 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1753 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1754 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1755 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1756 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1757
1758 find_tests(){
1759     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1760 }
1761
1762 ACODEC_TESTS=$(find_tests acodec)
1763 VCODEC_TESTS=$(find_tests vsynth1)
1764 LAVF_TESTS=$(find_tests lavf)
1765 LAVFI_TESTS=$(find_tests lavfi)
1766 SEEK_TESTS=$(find_tests seek seek_)
1767
1768 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1769
1770 for n in $COMPONENT_LIST; do
1771     v=$(toupper ${n%s})_LIST
1772     eval enable \$$v
1773     eval ${n}_if_any="\$$v"
1774 done
1775
1776 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1777
1778 die_unknown(){
1779     echo "Unknown option \"$1\"."
1780     echo "See $0 --help for available options."
1781     exit 1
1782 }
1783
1784 show_list() {
1785     suffix=_$1
1786     shift
1787     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1788     exit 0
1789 }
1790
1791 for opt do
1792     optval="${opt#*=}"
1793     case "$opt" in
1794     --extra-ldflags=*) add_ldflags $optval
1795     ;;
1796     --extra-libs=*) add_extralibs $optval
1797     ;;
1798     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1799     ;;
1800     --enable-debug=*) debuglevel="$optval"
1801     ;;
1802     --disable-everything)
1803     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1804     ;;
1805     --enable-*=*|--disable-*=*)
1806     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1807     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1808     eval list=\$$(toupper $thing)_LIST
1809     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1810     $action $(filter "$name" $list)
1811     ;;
1812     --enable-?*|--disable-?*)
1813     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1814     if is_in $option $COMPONENT_LIST; then
1815         test $action = disable && action=unset
1816         eval $action \$$(toupper ${option%s})_LIST
1817     elif is_in $option $CMDLINE_SELECT; then
1818         $action $option
1819     else
1820         die_unknown $opt
1821     fi
1822     ;;
1823     --list-*)
1824         NAME="${opt#--list-}"
1825         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1826         NAME=${NAME%s}
1827         eval show_list $NAME \$$(toupper $NAME)_LIST
1828     ;;
1829     --help|-h) show_help
1830     ;;
1831     *)
1832     optname="${opt%%=*}"
1833     optname="${optname#--}"
1834     optname=$(echo "$optname" | sed 's/-/_/g')
1835     if is_in $optname $CMDLINE_SET; then
1836         eval $optname='$optval'
1837     elif is_in $optname $CMDLINE_APPEND; then
1838         append $optname "$optval"
1839     else
1840          die_unknown $opt
1841     fi
1842     ;;
1843     esac
1844 done
1845
1846 disabled logging && logfile=/dev/null
1847
1848 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1849 set >> $logfile
1850
1851 test -n "$cross_prefix" && enable cross_compile
1852
1853 if enabled cross_compile; then
1854     test -n "$arch" && test -n "$target_os" ||
1855         die "Must specify target arch and OS when cross-compiling"
1856 fi
1857
1858 set_default arch target_os
1859
1860 ar_default="${cross_prefix}${ar_default}"
1861 cc_default="${cross_prefix}${cc_default}"
1862 nm_default="${cross_prefix}${nm_default}"
1863 pkg_config_default="${cross_prefix}${pkg_config_default}"
1864 ranlib="${cross_prefix}${ranlib}"
1865 strip_default="${cross_prefix}${strip_default}"
1866
1867 sysinclude_default="${sysroot}/usr/include"
1868
1869 set_default cc nm pkg_config strip sysinclude
1870 enabled cross_compile || host_cc_default=$cc
1871 set_default host_cc
1872
1873 if ! $pkg_config --version >/dev/null 2>&1; then
1874     warn "$pkg_config not found, library detection may fail."
1875     pkg_config=false
1876 fi
1877
1878 exesuf() {
1879     case $1 in
1880         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1881     esac
1882 }
1883
1884 EXESUF=$(exesuf $target_os)
1885 HOSTEXESUF=$(exesuf $host_os)
1886
1887 # set temporary file name
1888 : ${TMPDIR:=$TEMPDIR}
1889 : ${TMPDIR:=$TMP}
1890 : ${TMPDIR:=/tmp}
1891
1892 if ! check_cmd mktemp -u XXXXXX; then
1893     # simple replacement for missing mktemp
1894     # NOT SAFE FOR GENERAL USE
1895     mktemp(){
1896         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1897     }
1898 fi
1899
1900 tmpfile(){
1901     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1902         (set -C; exec > $tmp) 2>/dev/null ||
1903         die "Unable to create temporary file in $TMPDIR."
1904     append TMPFILES $tmp
1905     eval $1=$tmp
1906 }
1907
1908 trap 'rm -f -- $TMPFILES' EXIT
1909
1910 tmpfile TMPC  .c
1911 tmpfile TMPE  $EXESUF
1912 tmpfile TMPH  .h
1913 tmpfile TMPO  .o
1914 tmpfile TMPS  .S
1915 tmpfile TMPV  .ver
1916 tmpfile TMPSH .sh
1917 tmpfile TMPASM .asm
1918
1919 unset -f mktemp
1920
1921 chmod +x $TMPE
1922
1923 # make sure we can execute files in $TMPDIR
1924 cat > $TMPSH 2>> $logfile <<EOF
1925 #! /bin/sh
1926 EOF
1927 chmod +x $TMPSH >> $logfile 2>&1
1928 if ! $TMPSH >> $logfile 2>&1; then
1929     cat <<EOF
1930 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1931 variable to another directory and make sure that it is not mounted noexec.
1932 EOF
1933     die "Sanity test failed."
1934 fi
1935
1936 filter_cflags=echo
1937 filter_cppflags=echo
1938 filter_asflags=echo
1939
1940 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1941     cc_type=llvm_gcc
1942     cc_version=__VERSION__
1943     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1944     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1945     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1946     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1947     speed_cflags='-O3'
1948     size_cflags='-Os'
1949 elif $cc -v 2>&1 | grep -qi ^gcc; then
1950     cc_type=gcc
1951     cc_version=__VERSION__
1952     gcc_version=$($cc --version | head -n1)
1953     gcc_basever=$($cc -dumpversion)
1954     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1955     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1956     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1957     if ! $cc -dumpversion | grep -q '^2\.'; then
1958         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1959         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1960     fi
1961     speed_cflags='-O3'
1962     size_cflags='-Os'
1963 elif $cc --version 2>/dev/null | grep -q Intel; then
1964     cc_type=icc
1965     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1966     cc_ident=$($cc --version | head -n1)
1967     icc_version=$($cc -dumpversion)
1968     CC_DEPFLAGS='-MMD'
1969     AS_DEPFLAGS='-MMD'
1970     speed_cflags='-O3'
1971     size_cflags='-Os'
1972     noopt_cflags='-O1'
1973 elif $cc -v 2>&1 | grep -q xlc; then
1974     cc_type=xlc
1975     cc_version="AV_STRINGIFY(__IBMC__)"
1976     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1977     speed_cflags='-O5'
1978     size_cflags='-O5 -qcompact'
1979 elif $cc -V 2>/dev/null | grep -q Compaq; then
1980     cc_type=ccc
1981     cc_version="AV_STRINGIFY(__DECC_VER)"
1982     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1983     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1984     debuglevel=3
1985     add_ldflags -Wl,-z,now # calls to libots crash without this
1986     speed_cflags='-fast'
1987     size_cflags='-O1'
1988 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1989     test -d "$sysroot" || die "No valid sysroot specified."
1990     cc_type=armcc
1991     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1992     cc_ident=$($cc --vsn | head -n1)
1993     armcc_conf="$PWD/armcc.conf"
1994     $cc --arm_linux_configure                 \
1995         --arm_linux_config_file="$armcc_conf" \
1996         --configure_sysroot="$sysroot"        \
1997         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1998         die "Error creating armcc configuration file."
1999     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2000     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2001     as_default="${cross_prefix}gcc"
2002     CC_DEPFLAGS='-MMD'
2003     AS_DEPFLAGS='-MMD'
2004     speed_cflags='-O3'
2005     size_cflags='-Os'
2006     filter_asflags="filter_out -W${armcc_opt}*"
2007 elif $cc -version 2>/dev/null | grep -q TMS470; then
2008     cc_type=tms470
2009     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2010     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2011     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2012     CC_O='-fr=$(@D)'
2013     as_default="${cross_prefix}gcc"
2014     ld_default="${cross_prefix}gcc"
2015     TMPO=$(basename $TMPC .c).o
2016     append TMPFILES $TMPO
2017     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2018     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2019     AS_DEPFLAGS='-MMD'
2020     speed_cflags='-O3 -mf=5'
2021     size_cflags='-O3 -mf=2'
2022     filter_cflags=tms470_flags
2023     tms470_flags(){
2024         for flag; do
2025             case $flag in
2026                 -march=*|-mcpu=*)
2027                     case "${flag#*=}" in
2028                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2029                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2030                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2031                         armv6*|arm11*)          echo -mv=6   ;;
2032                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2033                                                 echo -mv=5e  ;;
2034                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2035                     esac
2036                     ;;
2037                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2038                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2039                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2040                 -msoft-float)   echo --float_support=vfplib       ;;
2041                 -O[0-3]|-mf=*)  echo $flag                        ;;
2042                 -g)             echo -g -mn                       ;;
2043                 -pds=*)         echo $flag                        ;;
2044             esac
2045         done
2046     }
2047 elif $cc -v 2>&1 | grep -q clang; then
2048     cc_type=clang
2049     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2050         cc_version=__clang_version__ || cc_version=__VERSION__
2051     cc_ident=$($cc --version | head -n1)
2052     CC_DEPFLAGS='-MMD'
2053     AS_DEPFLAGS='-MMD'
2054     speed_cflags='-O3'
2055     size_cflags='-Os'
2056 elif $cc -V 2>&1 | grep -q Sun; then
2057     cc_type=suncc
2058     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2059     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2060     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2061     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2062     add_ldflags -xc99
2063     speed_cflags='-O5'
2064     size_cflags='-O5 -xspace'
2065     filter_cflags=suncc_flags
2066     suncc_flags(){
2067         for flag; do
2068             case $flag in
2069                 -march=*|-mcpu=*)
2070                     case "${flag#*=}" in
2071                         native)                   echo -xtarget=native       ;;
2072                         v9|niagara)               echo -xarch=sparc          ;;
2073                         ultrasparc)               echo -xarch=sparcvis       ;;
2074                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2075                         i586|pentium)             echo -xchip=pentium        ;;
2076                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2077                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2078                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2079                         pentium4*)          echo -xtarget=pentium4           ;;
2080                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2081                         *-sse3)             echo -xarch=sse3                 ;;
2082                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2083                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2084                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2085                         k8|opteron|athlon64|athlon-fx)
2086                                                   echo -xarch=sse2a          ;;
2087                         athlon*)                  echo -xarch=pentium_proa   ;;
2088                     esac
2089                     ;;
2090                 -std=c99)             echo -xc99              ;;
2091                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2092                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2093                 -W*,*)                echo $flag              ;;
2094                 -f*-*|-W*)                                    ;;
2095                 *)                    echo $flag              ;;
2096             esac
2097         done
2098     }
2099 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2100     cc_type=pathscale
2101     cc_version=__PATHSCALE__
2102     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2103     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2104     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2105     speed_cflags='-O2'
2106     size_cflags='-Os'
2107     filter_cflags='filter_out -Wdisabled-optimization'
2108 elif $cc -v 2>&1 | grep -q Open64; then
2109     cc_type=open64
2110     cc_version=__OPEN64__
2111     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2112     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2113     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2114     speed_cflags='-O2'
2115     size_cflags='-Os'
2116     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2117 fi
2118
2119 test -n "$cc_type" && enable $cc_type ||
2120     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2121
2122 : ${as_default:=$cc}
2123 : ${dep_cc_default:=$cc}
2124 : ${ld_default:=$cc}
2125 set_default ar as dep_cc ld
2126
2127 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2128 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2129
2130 add_cflags $extra_cflags
2131 add_asflags $extra_cflags
2132
2133 if test -n "$sysroot"; then
2134     case "$cc_type" in
2135         gcc|llvm_gcc|clang)
2136             add_cppflags --sysroot="$sysroot"
2137             add_ldflags --sysroot="$sysroot"
2138         ;;
2139         tms470)
2140             add_cppflags -I"$sysinclude"
2141             add_ldflags  --sysroot="$sysroot"
2142         ;;
2143     esac
2144 fi
2145
2146 if test "$cpu" = host; then
2147     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2148
2149     case "$cc_type" in
2150         gcc|llvm_gcc)
2151             check_native(){
2152                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2153                 sed -n "/cc1.*$1=/{
2154                             s/.*$1=\\([^ ]*\\).*/\\1/
2155                             p
2156                             q
2157                         }" $TMPE
2158             }
2159             cpu=$(check_native -march || check_native -mcpu)
2160         ;;
2161     esac
2162
2163     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2164 fi
2165
2166 # Deal with common $arch aliases
2167 case "$arch" in
2168     arm*)
2169         arch="arm"
2170     ;;
2171     mips|mipsel|IP*)
2172         arch="mips"
2173     ;;
2174     mips64*)
2175         arch="mips"
2176         subarch="mips64"
2177     ;;
2178     parisc|hppa)
2179         arch="parisc"
2180     ;;
2181     parisc64|hppa64)
2182         arch="parisc"
2183         subarch="parisc64"
2184     ;;
2185     "Power Macintosh"|ppc|powerpc)
2186         arch="ppc"
2187     ;;
2188     ppc64|powerpc64)
2189         arch="ppc"
2190         subarch="ppc64"
2191     ;;
2192     s390|s390x)
2193         arch="s390"
2194     ;;
2195     sh4|sh)
2196         arch="sh4"
2197     ;;
2198     sun4u|sparc64)
2199         arch="sparc"
2200         subarch="sparc64"
2201     ;;
2202     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2203         arch="x86"
2204     ;;
2205 esac
2206
2207 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2208 enable $arch
2209
2210 # Add processor-specific flags
2211 if test "$cpu" = generic; then
2212     : do nothing
2213 elif enabled ppc; then
2214
2215     case $(tolower $cpu) in
2216         601|ppc601|powerpc601)
2217             cpuflags="-mcpu=601"
2218             disable altivec
2219         ;;
2220         603*|ppc603*|powerpc603*)
2221             cpuflags="-mcpu=603"
2222             disable altivec
2223         ;;
2224         604*|ppc604*|powerpc604*)
2225             cpuflags="-mcpu=604"
2226             disable altivec
2227         ;;
2228         g3|75*|ppc75*|powerpc75*)
2229             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2230             disable altivec
2231         ;;
2232         g4|745*|ppc745*|powerpc745*)
2233             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2234         ;;
2235         74*|ppc74*|powerpc74*)
2236             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2237         ;;
2238         g5|970|ppc970|powerpc970|power4*)
2239             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2240         ;;
2241         cell)
2242             cpuflags="-mcpu=cell"
2243             enable ldbrx
2244         ;;
2245         e500v2)
2246             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2247             disable altivec
2248         ;;
2249         e500)
2250             cpuflags="-mcpu=8540 -mhard-float"
2251             disable altivec
2252         ;;
2253     esac
2254
2255 elif enabled x86; then
2256
2257     case $cpu in
2258         i[345]86|pentium)
2259             cpuflags="-march=$cpu"
2260             disable mmx
2261         ;;
2262         # targets that do NOT support conditional mov (cmov)
2263         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2264             cpuflags="-march=$cpu"
2265             disable cmov
2266         ;;
2267         # targets that do support conditional mov (cmov)
2268         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2269             cpuflags="-march=$cpu"
2270             enable cmov
2271             enable fast_cmov
2272         ;;
2273         # targets that do support conditional mov but on which it's slow
2274         pentium4|pentium4m|prescott|nocona)
2275             cpuflags="-march=$cpu"
2276             enable cmov
2277             disable fast_cmov
2278         ;;
2279     esac
2280
2281 elif enabled sparc; then
2282
2283     case $cpu in
2284         niagara)
2285             cpuflags="-mcpu=$cpu"
2286             disable vis
2287         ;;
2288         sparc64)
2289             cpuflags="-mcpu=v9"
2290         ;;
2291     esac
2292
2293 elif enabled arm; then
2294
2295     case $cpu in
2296         armv*)
2297             cpuflags="-march=$cpu"
2298             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2299         ;;
2300         *)
2301             cpuflags="-mcpu=$cpu"
2302             case $cpu in
2303                 cortex-a*)                               subarch=armv7a  ;;
2304                 cortex-r*)                               subarch=armv7r  ;;
2305                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2306                 arm11*)                                  subarch=armv6   ;;
2307                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2308                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2309             esac
2310         ;;
2311     esac
2312
2313 elif enabled alpha; then
2314
2315     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2316
2317 elif enabled bfin; then
2318
2319     cpuflags="-mcpu=$cpu"
2320
2321 elif enabled mips; then
2322
2323     cpuflags="-march=$cpu"
2324
2325 elif enabled avr32; then
2326
2327     case $cpu in
2328         ap7[02]0[0-2])
2329             subarch="avr32_ap"
2330             cpuflags="-mpart=$cpu"
2331         ;;
2332         ap)
2333             subarch="avr32_ap"
2334             cpuflags="-march=$cpu"
2335         ;;
2336         uc3[ab]*)
2337             subarch="avr32_uc"
2338             cpuflags="-mcpu=$cpu"
2339         ;;
2340         uc)
2341             subarch="avr32_uc"
2342             cpuflags="-march=$cpu"
2343         ;;
2344     esac
2345
2346 fi
2347
2348 add_cflags $cpuflags
2349 add_asflags $cpuflags
2350
2351 # compiler sanity check
2352 check_exec <<EOF
2353 int main(void){ return 0; }
2354 EOF
2355 if test "$?" != 0; then
2356     echo "$cc is unable to create an executable file."
2357     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2358         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2359         echo "Only do this if you know what cross compiling means."
2360     fi
2361     die "C compiler test failed."
2362 fi
2363
2364 add_cppflags -D_ISOC99_SOURCE
2365 check_cflags -std=c99
2366 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2367 #include <stdlib.h>
2368 EOF
2369 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2370 #include <stdlib.h>
2371 EOF
2372
2373 check_host_cflags -std=c99
2374 check_host_cflags -Wall
2375
2376 case "$arch" in
2377     alpha|ia64|mips|parisc|sparc)
2378         spic=$shared
2379     ;;
2380     x86)
2381         subarch="x86_32"
2382         check_cc <<EOF && subarch="x86_64"
2383         int test[(int)sizeof(char*) - 7];
2384 EOF
2385         if test "$subarch" = "x86_64"; then
2386             spic=$shared
2387         fi
2388     ;;
2389 esac
2390
2391 enable $subarch
2392 enabled spic && enable pic
2393
2394 # OS specific
2395 case $target_os in
2396     haiku)
2397         prefix_default="/boot/common"
2398         network_extralibs="-lnetwork"
2399         host_libs=
2400         ;;
2401     sunos)
2402         FFSERVERLDFLAGS=""
2403         SHFLAGS='-shared -Wl,-h,$$(@F)'
2404         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2405         network_extralibs="-lsocket -lnsl"
2406         add_cppflags -D__EXTENSIONS__
2407         nm_opts='-P -g'
2408         ;;
2409     netbsd)
2410         disable symver
2411         oss_indev_extralibs="-lossaudio"
2412         oss_outdev_extralibs="-lossaudio"
2413         ;;
2414     openbsd)
2415         enable malloc_aligned
2416         # On OpenBSD 4.5. the compiler does not use PIC unless
2417         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2418         # however the generated executable will not do anything
2419         # (simply quits with exit-code 1, no crash, no output).
2420         # Thus explicitly enable PIC here.
2421         enable pic
2422         disable symver
2423         SHFLAGS='-shared'
2424         oss_indev_extralibs="-lossaudio"
2425         oss_outdev_extralibs="-lossaudio"
2426         ;;
2427     dragonfly)
2428         enable malloc_aligned
2429         disable symver
2430         ;;
2431     freebsd)
2432         enable malloc_aligned
2433         ;;
2434     bsd/os)
2435         add_extralibs -lpoll -lgnugetopt
2436         strip="strip -d"
2437         ;;
2438     darwin)
2439         enable malloc_aligned
2440         gas="gas-preprocessor.pl $cc"
2441         enabled ppc && add_asflags -force_cpusubtype_ALL
2442         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2443         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2444         strip="${strip} -x"
2445         add_ldflags -Wl,-dynamic,-search_paths_first
2446         SLIBSUF=".dylib"
2447         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2448         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2449         FFSERVERLDFLAGS=-Wl,-bind_at_load
2450         objformat="macho"
2451         enabled x86_64 && objformat="macho64"
2452         enabled_any pic shared ||
2453             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2454         ;;
2455     mingw32*)
2456         if test $target_os = "mingw32ce"; then
2457             disable network
2458         else
2459             target_os=mingw32
2460         fi
2461         LIBTARGET=i386
2462         if enabled x86_64; then
2463             enable malloc_aligned
2464             LIBTARGET=x64
2465         elif enabled arm; then
2466             LIBTARGET=arm-wince
2467         fi
2468         shlibdir_default="$bindir_default"
2469         SLIBPREF=""
2470         SLIBSUF=".dll"
2471         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2472         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2473         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2474         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2475         SLIB_INSTALL_LINKS=
2476         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2477         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2478         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'
2479         objformat="win32"
2480         enable dos_paths
2481         check_cflags -fno-common
2482         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2483                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2484                 die "ERROR: MinGW runtime version must be >= 3.15."
2485         add_cppflags -U__STRICT_ANSI__
2486         ;;
2487     cygwin*)
2488         target_os=cygwin
2489         shlibdir_default="$bindir_default"
2490         SLIBPREF="cyg"
2491         SLIBSUF=".dll"
2492         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2493         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2494         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2495         objformat="win32"
2496         enable dos_paths
2497         check_cflags -fno-common
2498         add_cppflags -U__STRICT_ANSI__
2499         ;;
2500     *-dos|freedos|opendos)
2501         network_extralibs="-lsocket"
2502         objformat="coff"
2503         enable dos_paths
2504         add_cppflags -U__STRICT_ANSI__
2505         ;;
2506     linux)
2507         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2508         enable dv1394
2509         ;;
2510     irix*)
2511         target_os=irix
2512         ranlib="echo ignoring ranlib"
2513         ;;
2514     os/2*)
2515         strip="lxlite -CS"
2516         ln_s="cp -f"
2517         objformat="aout"
2518         add_cppflags -D_GNU_SOURCE
2519         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2520         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2521         FFSERVERLDFLAGS=""
2522         LIBSUF="_s.a"
2523         SLIBPREF=""
2524         SLIBSUF=".dll"
2525         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2526         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2527         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2528           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2529           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2530           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2531           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2532           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2533         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2534           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2535         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2536         enable dos_paths
2537         ;;
2538     gnu/kfreebsd)
2539         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2540         ;;
2541     gnu)
2542         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2543         ;;
2544     qnx)
2545         add_cppflags -D_QNX_SOURCE
2546         network_extralibs="-lsocket"
2547         ;;
2548     symbian)
2549         SLIBSUF=".dll"
2550         enable dos_paths
2551         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2552         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2553         add_ldflags -Wl,--target1-abs,--no-undefined \
2554                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2555                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2556         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2557                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2558                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2559         ;;
2560     none)
2561         ;;
2562     *)
2563         die "Unknown OS '$target_os'."
2564         ;;
2565 esac
2566
2567 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2568
2569 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2570
2571 set_default $PATHS_LIST
2572
2573 # we need to build at least one lib type
2574 if ! enabled_any static shared; then
2575     cat <<EOF
2576 At least one library type must be built.
2577 Specify --enable-static to build the static libraries or --enable-shared to
2578 build the shared libraries as well. To only build the shared libraries specify
2579 --disable-static in addition to --enable-shared.
2580 EOF
2581     exit 1;
2582 fi
2583
2584 die_license_disabled() {
2585     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2586 }
2587
2588 die_license_disabled gpl libx264
2589 die_license_disabled gpl libxavs
2590 die_license_disabled gpl libxvid
2591 die_license_disabled gpl x11grab
2592
2593 die_license_disabled nonfree libfaac
2594
2595 die_license_disabled version3 libopencore_amrnb
2596 die_license_disabled version3 libopencore_amrwb
2597 die_license_disabled version3 libvo_aacenc
2598 die_license_disabled version3 libvo_amrwbenc
2599
2600 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2601
2602 disabled optimizations || check_cflags -fomit-frame-pointer
2603
2604 enable_pic() {
2605     enable pic
2606     add_cppflags -DPIC
2607     add_cflags   -fPIC
2608     add_asflags  -fPIC
2609 }
2610
2611 enabled pic && enable_pic
2612
2613 check_cc <<EOF || die "Symbol mangling check failed."
2614 int ff_extern;
2615 EOF
2616 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2617 extern_prefix=${sym%%ff_extern*}
2618
2619 check_cc <<EOF && enable inline_asm
2620 void foo(void) { __asm__ volatile ("" ::); }
2621 EOF
2622
2623 _restrict=
2624 for restrict_keyword in restrict __restrict__ __restrict; do
2625     check_cc <<EOF && _restrict=$restrict_keyword && break
2626 void foo(char * $restrict_keyword p);
2627 EOF
2628 done
2629
2630 check_cc <<EOF && enable attribute_packed
2631 struct { int x; } __attribute__((packed)) x;
2632 EOF
2633
2634 check_cc <<EOF && enable attribute_may_alias
2635 union { int x; } __attribute__((may_alias)) x;
2636 EOF
2637
2638 check_cc <<EOF || die "endian test failed"
2639 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2640 EOF
2641 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2642
2643 if enabled alpha; then
2644
2645     check_cflags -mieee
2646
2647 elif enabled arm; then
2648
2649     enabled thumb && check_cflags -mthumb || check_cflags -marm
2650     nogas=die
2651
2652     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2653         enable vfp_args
2654     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2655         case "${cross_prefix:-$cc}" in
2656             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2657             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2658 __asm__ (".eabi_attribute 28, 1");
2659 int main(void) { return 0; }
2660 EOF
2661         esac
2662         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2663     fi
2664
2665     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2666     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2667     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2668     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2669     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2670     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2671     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2672
2673     enabled_all armv6t2 shared !pic && enable_pic
2674
2675 elif enabled mips; then
2676
2677     check_asm loongson '"dmult.g $1, $2, $3"'
2678     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2679
2680 elif enabled ppc; then
2681
2682     enable local_aligned_8 local_aligned_16
2683
2684     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2685     check_asm ibm_asm   '"add 0, 0, 0"'
2686     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2687     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2688
2689     # AltiVec flags: The FSF version of GCC differs from the Apple version
2690     if enabled altivec; then
2691         nogas=warn
2692         check_cflags -maltivec -mabi=altivec &&
2693         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2694         check_cflags -faltivec
2695
2696         # check if our compiler supports Motorola AltiVec C API
2697         check_cc <<EOF || disable altivec
2698 $inc_altivec_h
2699 int main(void) {
2700     vector signed int v1, v2, v3;
2701     v1 = vec_add(v2,v3);
2702     return 0;
2703 }
2704 EOF
2705
2706         # check if our compiler supports braces for vector declarations
2707         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2708 $inc_altivec_h
2709 int main (void) { (vector int) {1}; return 0; }
2710 EOF
2711     fi
2712
2713 elif enabled sparc; then
2714
2715     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2716         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2717
2718 elif enabled x86; then
2719
2720     enable local_aligned_8 local_aligned_16
2721
2722     # check whether EBP is available on x86
2723     # As 'i' is stored on the stack, this program will crash
2724     # if the base pointer is used to access it because the
2725     # base pointer is cleared in the inline assembly code.
2726     check_exec_crash <<EOF && enable ebp_available
2727     volatile int i=0;
2728     __asm__ volatile (
2729         "xorl %%ebp, %%ebp"
2730     ::: "%ebp");
2731     return i;
2732 EOF
2733
2734     # check whether EBX is available on x86
2735     check_asm ebx_available '""::"b"(0)' &&
2736         check_asm ebx_available '"":::"%ebx"'
2737
2738     # check whether xmm clobbers are supported
2739     check_asm xmm_clobbers '"":::"%xmm0"'
2740
2741     # check whether binutils is new enough to compile SSSE3/MMX2
2742     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2743     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2744
2745     check_asm bswap '"bswap %%eax" ::: "%eax"'
2746
2747     if ! disabled_any asm mmx yasm; then
2748         if check_cmd $yasmexe --version; then
2749             enabled x86_64 && yasm_extra="-m amd64"
2750             yasm_debug="-g dwarf2"
2751         elif check_cmd nasm -v; then
2752             yasmexe=nasm
2753             yasm_debug="-g -F dwarf"
2754             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2755         fi
2756
2757         YASMFLAGS="-f $objformat $yasm_extra"
2758         enabled pic               && append YASMFLAGS "-DPIC"
2759         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2760         case "$objformat" in
2761             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2762         esac
2763
2764         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2765             die "yasm not found, use --disable-yasm for a crippled build"
2766         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2767     fi
2768
2769     case "$cpu" in
2770         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2771             disable fast_clz
2772         ;;
2773     esac
2774
2775 fi
2776
2777 if enabled asm; then
2778     as=${gas:=$as}
2779     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2780         $nogas "GNU assembler not found, install gas-preprocessor"
2781 fi
2782
2783 check_ldflags -Wl,--as-needed
2784
2785 if check_func dlopen; then
2786     ldl=
2787 elif check_func dlopen -ldl; then
2788     ldl=-ldl
2789 fi
2790
2791 if enabled network; then
2792     check_type "sys/types.h sys/socket.h" socklen_t
2793     check_type netdb.h "struct addrinfo"
2794     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2795     check_type netinet/in.h "struct sockaddr_in6"
2796     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2797     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2798     # Prefer arpa/inet.h over winsock2
2799     if check_header arpa/inet.h ; then
2800         check_func closesocket
2801     elif check_header winsock2.h ; then
2802         check_func_headers winsock2.h closesocket -lws2 && \
2803             network_extralibs="-lws2" || \
2804         { check_func_headers winsock2.h closesocket -lws2_32 && \
2805             network_extralibs="-lws2_32"; }
2806         check_type ws2tcpip.h socklen_t
2807         check_type ws2tcpip.h "struct addrinfo"
2808         check_type ws2tcpip.h "struct ipv6_mreq"
2809         check_type ws2tcpip.h "struct sockaddr_in6"
2810         check_type ws2tcpip.h "struct sockaddr_storage"
2811         check_struct winsock2.h "struct sockaddr" sa_len
2812     else
2813         disable network
2814     fi
2815 fi
2816
2817 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2818 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2819
2820 check_func  fcntl
2821 check_func  fork
2822 check_func  getaddrinfo $network_extralibs
2823 check_func  gethrtime
2824 check_func  getrusage
2825 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2826 check_func  inet_aton $network_extralibs
2827 check_func  isatty
2828 check_func  localtime_r
2829 check_func  ${malloc_prefix}memalign            && enable memalign
2830 check_func  mkstemp
2831 check_func  mmap
2832 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2833 check_func  setrlimit
2834 check_func  strerror_r
2835 check_func  strptime
2836 check_func  strtok_r
2837 check_func_headers conio.h kbhit
2838 check_func_headers io.h setmode
2839 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2840 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2841 check_func_headers windows.h GetProcessTimes
2842 check_func_headers windows.h MapViewOfFile
2843 check_func_headers windows.h VirtualAlloc
2844
2845 check_header dlfcn.h
2846 check_header dxva2api.h
2847 check_header libcrystalhd/libcrystalhd_if.h
2848 check_header malloc.h
2849 check_header poll.h
2850 check_header sys/mman.h
2851 check_header sys/resource.h
2852 check_header sys/select.h
2853 check_header termios.h
2854 check_header vdpau/vdpau.h
2855 check_header vdpau/vdpau_x11.h
2856 check_header X11/extensions/XvMClib.h
2857
2858 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2859
2860 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2861 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2862
2863 # check for some common methods of building with pthread support
2864 # do this before the optional library checks as some of them require pthreads
2865 if ! disabled pthreads && ! enabled w32threads; then
2866     enable pthreads
2867     if check_func pthread_create; then
2868         :
2869     elif check_func pthread_create -pthread; then
2870         add_cflags -pthread
2871         add_extralibs -pthread
2872     elif check_func pthread_create -pthreads; then
2873         add_cflags -pthreads
2874         add_extralibs -pthreads
2875     elif check_func pthread_create -lpthreadGC2; then
2876         add_extralibs -lpthreadGC2
2877     elif ! check_lib pthread.h pthread_create -lpthread; then
2878         disable pthreads
2879     fi
2880 fi
2881
2882 for thread in $THREADS_LIST; do
2883     if enabled $thread; then
2884         test -n "$thread_type" &&
2885             die "ERROR: Only one thread type must be selected." ||
2886             thread_type="$thread"
2887     fi
2888 done
2889
2890 check_lib math.h sin -lm && LIBM="-lm"
2891 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2892 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2893
2894 check_mathfunc exp2
2895 check_mathfunc exp2f
2896 check_mathfunc llrint
2897 check_mathfunc llrintf
2898 check_mathfunc log2
2899 check_mathfunc log2f
2900 check_mathfunc lrint
2901 check_mathfunc lrintf
2902 check_mathfunc round
2903 check_mathfunc roundf
2904 check_mathfunc trunc
2905 check_mathfunc truncf
2906
2907 # these are off by default, so fail if requested and not available
2908 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2909 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2910 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2911 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2912 enabled libdirac   && require_pkg_config dirac                          \
2913     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2914     "dirac_decoder_init dirac_encoder_init"
2915 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2916 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2917 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2918 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2919 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2920 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2921 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2922 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2923 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2924 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2925 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2926 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2927 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2928 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2929 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2930 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2931 enabled libvpx     && {
2932     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2933                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2934     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2935                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2936 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2937                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2938                         die "ERROR: libx264 version must be >= 0.115."; }
2939 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2940 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2941 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2942                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2943                         die "ERROR: openal not found"; } &&
2944                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2945                         die "ERROR: openal version must be 1.1 or compatible"; }
2946 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2947
2948 SDL_CONFIG="${cross_prefix}sdl-config"
2949 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2950     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2951     enable sdl &&
2952     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2953 else
2954   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2955     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2956     sdl_libs=$("${SDL_CONFIG}" --libs)
2957     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2958     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2959     enable sdl &&
2960     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2961   fi
2962 fi
2963 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2964
2965 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2966
2967 check_header linux/fb.h
2968 check_header linux/videodev.h
2969 check_header linux/videodev2.h
2970 check_header sys/videoio.h
2971
2972 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2973 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2974 # w32api 3.12 had it defined wrong
2975 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2976
2977 check_type "dshow.h" IBaseFilter
2978
2979 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2980 { check_header dev/bktr/ioctl_meteor.h &&
2981   check_header dev/bktr/ioctl_bt848.h; } ||
2982 { check_header machine/ioctl_meteor.h &&
2983   check_header machine/ioctl_bt848.h; } ||
2984 { check_header dev/video/meteor/ioctl_meteor.h &&
2985   check_header dev/video/bktr/ioctl_bt848.h; } ||
2986 check_header dev/ic/bt8xx.h
2987
2988 check_header sndio.h
2989 if check_struct sys/soundcard.h audio_buf_info bytes; then
2990     enable_safe sys/soundcard.h
2991 else
2992     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2993     #include <sys/soundcard.h>
2994     audio_buf_info abc;
2995 EOF
2996 fi
2997 check_header soundcard.h
2998
2999 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3000
3001 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3002
3003 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3004
3005 enabled x11grab                         &&
3006 check_header X11/Xlib.h                 &&
3007 check_header X11/extensions/XShm.h      &&
3008 check_header X11/extensions/Xfixes.h    &&
3009 check_func XOpenDisplay -lX11           &&
3010 check_func XShmCreateImage -lX11 -lXext &&
3011 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3012
3013 if ! disabled vaapi; then
3014     check_lib va/va.h vaInitialize -lva && {
3015         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3016         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3017     } || disable vaapi
3018 fi
3019
3020 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3021 check_cpp_condition \
3022     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3023     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3024       disable vdpau; }
3025 fi
3026
3027 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3028
3029 # add some useful compiler flags if supported
3030 check_cflags -Wdeclaration-after-statement
3031 check_cflags -Wall
3032 check_cflags -Wno-parentheses
3033 check_cflags -Wno-switch
3034 check_cflags -Wno-format-zero-length
3035 check_cflags -Wdisabled-optimization
3036 check_cflags -Wpointer-arith
3037 check_cflags -Wredundant-decls
3038 check_cflags -Wno-pointer-sign
3039 check_cflags -Wcast-qual
3040 check_cflags -Wwrite-strings
3041 check_cflags -Wtype-limits
3042 check_cflags -Wundef
3043 check_cflags -Wmissing-prototypes
3044 check_cflags -Wno-pointer-to-int-cast
3045 enabled extra_warnings && check_cflags -Winline
3046
3047 # add some linker flags
3048 check_ldflags -Wl,--warn-common
3049 check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3050 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3051
3052 echo "X{};" > $TMPV
3053 if test_ldflags -Wl,--version-script,$TMPV; then
3054     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3055     check_cc <<EOF && enable symver_asm_label
3056 void ff_foo(void) __asm__ ("av_foo@VERSION");
3057 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3058 EOF
3059     check_cc <<EOF && enable symver_gnu_asm
3060 __asm__(".symver ff_foo,av_foo@VERSION");
3061 void ff_foo(void) {}
3062 EOF
3063 fi
3064
3065 if [ -n "$optflags" ]; then
3066     add_cflags $optflags
3067 elif enabled small; then
3068     add_cflags $size_cflags
3069 elif enabled optimizations; then
3070     add_cflags $speed_cflags
3071 else
3072     add_cflags $noopt_cflags
3073 fi
3074 check_cflags -fno-math-errno
3075 check_cflags -fno-signed-zeros
3076
3077 if enabled icc; then
3078     # Just warnings, no remarks
3079     check_cflags -w1
3080     # -wd: Disable following warnings
3081     # 144, 167, 556: -Wno-pointer-sign
3082     # 1292: attribute "foo" ignored
3083     # 10006: ignoring unknown option -fno-signed-zeros
3084     # 10148: ignoring unknown option -Wno-parentheses
3085     # 10156: ignoring option '-W'; no argument required
3086     check_cflags -wd144,167,556,1292,10006,10148,10156
3087     # 11030: Warning unknown option --as-needed
3088     # 10156: ignoring option '-export'; no argument required
3089     check_ldflags -wd10156,11030
3090     # Allow to compile with optimizations
3091     check_ldflags -march=$cpu
3092     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3093     enable ebp_available
3094     if enabled x86_32; then
3095         test ${icc_version%%.*} -ge 11 && \
3096             check_cflags -falign-stack=maintain-16-byte || \
3097             disable aligned_stack
3098     fi
3099 elif enabled ccc; then
3100     # disable some annoying warnings
3101     add_cflags -msg_disable cvtu32to64
3102     add_cflags -msg_disable embedcomment
3103     add_cflags -msg_disable needconstext
3104     add_cflags -msg_disable nomainieee
3105     add_cflags -msg_disable ptrmismatch1
3106     add_cflags -msg_disable unreachcode
3107 elif enabled gcc; then
3108     check_cflags -fno-tree-vectorize
3109     check_cflags -Werror=implicit-function-declaration
3110     check_cflags -Werror=missing-prototypes
3111 elif enabled llvm_gcc; then
3112     check_cflags -mllvm -stack-alignment=16
3113 elif enabled clang; then
3114     check_cflags -mllvm -stack-alignment=16
3115     check_cflags -Qunused-arguments
3116 elif enabled armcc; then
3117     # 2523: use of inline assembler is deprecated
3118     add_cflags -W${armcc_opt},--diag_suppress=2523
3119     add_cflags -W${armcc_opt},--diag_suppress=1207
3120     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3121     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3122     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3123     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3124 elif enabled tms470; then
3125     add_cflags -pds=824 -pds=837
3126 elif enabled pathscale; then
3127     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3128 fi
3129
3130 enabled_any $THREADS_LIST      && enable threads
3131
3132 check_deps $CONFIG_LIST       \
3133            $CONFIG_EXTRA      \
3134            $HAVE_LIST         \
3135            $DECODER_LIST      \
3136            $ENCODER_LIST      \
3137            $HWACCEL_LIST      \
3138            $PARSER_LIST       \
3139            $BSF_LIST          \
3140            $DEMUXER_LIST      \
3141            $MUXER_LIST        \
3142            $FILTER_LIST       \
3143            $INDEV_LIST        \
3144            $OUTDEV_LIST       \
3145            $PROTOCOL_LIST     \
3146            $ACODEC_TESTS      \
3147            $VCODEC_TESTS      \
3148            $LAVF_TESTS        \
3149            $LAVFI_TESTS       \
3150            $SEEK_TESTS        \
3151
3152 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3153
3154 if test $target_os == "haiku"; then
3155     disable memalign
3156     disable posix_memalign
3157 fi
3158
3159 ! enabled_any memalign posix_memalign malloc_aligned &&
3160     enabled_any $need_memalign && enable memalign_hack
3161
3162 echo "install prefix            $prefix"
3163 echo "source path               $source_path"
3164 echo "C compiler                $cc"
3165 echo "ARCH                      $arch ($cpu)"
3166 if test "$build_suffix" != ""; then
3167     echo "build suffix              $build_suffix"
3168 fi
3169 if test "$extra_version" != ""; then
3170     echo "version string suffix     $extra_version"
3171 fi
3172 echo "big-endian                ${bigendian-no}"
3173 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3174 if enabled x86; then
3175     echo "${yasmexe}                      ${yasm-no}"
3176     echo "MMX enabled               ${mmx-no}"
3177     echo "MMX2 enabled              ${mmx2-no}"
3178     echo "3DNow! enabled            ${amd3dnow-no}"
3179     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3180     echo "SSE enabled               ${sse-no}"
3181     echo "SSSE3 enabled             ${ssse3-no}"
3182     echo "AVX enabled               ${avx-no}"
3183     echo "CMOV enabled              ${cmov-no}"
3184     echo "CMOV is fast              ${fast_cmov-no}"
3185     echo "EBX available             ${ebx_available-no}"
3186     echo "EBP available             ${ebp_available-no}"
3187 fi
3188 if enabled arm; then
3189     echo "ARMv5TE enabled           ${armv5te-no}"
3190     echo "ARMv6 enabled             ${armv6-no}"
3191     echo "ARMv6T2 enabled           ${armv6t2-no}"
3192     echo "ARM VFP enabled           ${armvfp-no}"
3193     echo "IWMMXT enabled            ${iwmmxt-no}"
3194     echo "NEON enabled              ${neon-no}"
3195 fi
3196 if enabled mips; then
3197     echo "MMI enabled               ${mmi-no}"
3198 fi
3199 if enabled ppc; then
3200     echo "AltiVec enabled           ${altivec-no}"
3201     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3202     echo "dcbzl available           ${dcbzl-no}"
3203 fi
3204 if enabled sparc; then
3205     echo "VIS enabled               ${vis-no}"
3206 fi
3207 echo "debug symbols             ${debug-no}"
3208 echo "strip symbols             ${stripping-no}"
3209 echo "optimize for size         ${small-no}"
3210 echo "optimizations             ${optimizations-no}"
3211 echo "static                    ${static-no}"
3212 echo "shared                    ${shared-no}"
3213 echo "postprocessing support    ${postproc-no}"
3214 echo "new filter support        ${avfilter-no}"
3215 echo "network support           ${network-no}"
3216 echo "threading support         ${thread_type-no}"
3217 echo "SDL support               ${sdl-no}"
3218 echo "Sun medialib support      ${mlib-no}"
3219 echo "libdxva2 enabled          ${dxva2-no}"
3220 echo "libva enabled             ${vaapi-no}"
3221 echo "libvdpau enabled          ${vdpau-no}"
3222 echo "AVISynth enabled          ${avisynth-no}"
3223 echo "libcelt enabled           ${libcelt-no}"
3224 echo "frei0r enabled            ${frei0r-no}"
3225 echo "libdc1394 support         ${libdc1394-no}"
3226 echo "libdirac enabled          ${libdirac-no}"
3227 echo "libfaac enabled           ${libfaac-no}"
3228 echo "libgsm enabled            ${libgsm-no}"
3229 echo "libmp3lame enabled        ${libmp3lame-no}"
3230 echo "libnut enabled            ${libnut-no}"
3231 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3232 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3233 echo "libopencv support         ${libopencv-no}"
3234 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3235 echo "librtmp enabled           ${librtmp-no}"
3236 echo "libschroedinger enabled   ${libschroedinger-no}"
3237 echo "libspeex enabled          ${libspeex-no}"
3238 echo "libtheora enabled         ${libtheora-no}"
3239 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3240 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3241 echo "libvorbis enabled         ${libvorbis-no}"
3242 echo "libvpx enabled            ${libvpx-no}"
3243 echo "libx264 enabled           ${libx264-no}"
3244 echo "libxavs enabled           ${libxavs-no}"
3245 echo "libxvid enabled           ${libxvid-no}"
3246 echo "openal enabled            ${openal-no}"
3247 echo "zlib enabled              ${zlib-no}"
3248 echo "bzlib enabled             ${bzlib-no}"
3249 echo
3250
3251 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3252     echo "Enabled ${type}s:"
3253     eval list=\$$(toupper $type)_LIST
3254     print_enabled '_*' $list | sort | pr -r -3 -t
3255     echo
3256 done
3257
3258 license="LGPL version 2.1 or later"
3259 if enabled nonfree; then
3260     license="nonfree and unredistributable"
3261 elif enabled gplv3; then
3262     license="GPL version 3 or later"
3263 elif enabled lgplv3; then
3264     license="LGPL version 3 or later"
3265 elif enabled gpl; then
3266     license="GPL version 2 or later"
3267 fi
3268
3269 echo "License: $license"
3270
3271 echo "Creating config.mak and config.h..."
3272
3273 test -e Makefile || $ln_s "$source_path/Makefile" .
3274
3275 enabled stripping || strip="echo skipping strip"
3276
3277 config_files="$TMPH config.mak"
3278
3279 cat > config.mak <<EOF
3280 # Automatically generated by configure - do not modify!
3281 ifndef FFMPEG_CONFIG_MAK
3282 FFMPEG_CONFIG_MAK=1
3283 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3284 prefix=$prefix
3285 LIBDIR=\$(DESTDIR)$libdir
3286 SHLIBDIR=\$(DESTDIR)$shlibdir
3287 INCDIR=\$(DESTDIR)$incdir
3288 BINDIR=\$(DESTDIR)$bindir
3289 DATADIR=\$(DESTDIR)$datadir
3290 MANDIR=\$(DESTDIR)$mandir
3291 SRC_PATH=$source_path
3292 ifndef MAIN_MAKEFILE
3293 SRC_PATH:=\$(SRC_PATH:.%=..%)
3294 endif
3295 CC_IDENT=$cc_ident
3296 ARCH=$arch
3297 CC=$cc
3298 AS=$as
3299 LD=$ld
3300 DEPCC=$dep_cc
3301 YASM=$yasmexe
3302 YASMDEP=$yasmexe
3303 AR=$ar
3304 RANLIB=$ranlib
3305 CP=cp -p
3306 LN_S=$ln_s
3307 STRIP=$strip
3308 CPPFLAGS=$CPPFLAGS
3309 CFLAGS=$CFLAGS
3310 ASFLAGS=$ASFLAGS
3311 AS_O=$CC_O
3312 CC_O=$CC_O
3313 LDFLAGS=$LDFLAGS
3314 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3315 SHFLAGS=$SHFLAGS
3316 YASMFLAGS=$YASMFLAGS
3317 BUILDSUF=$build_suffix
3318 FULLNAME=$FULLNAME
3319 LIBPREF=$LIBPREF
3320 LIBSUF=$LIBSUF
3321 LIBNAME=$LIBNAME
3322 SLIBPREF=$SLIBPREF
3323 SLIBSUF=$SLIBSUF
3324 EXESUF=$EXESUF
3325 EXTRA_VERSION=$extra_version
3326 DEPFLAGS=$DEPFLAGS
3327 CCDEP=$CCDEP
3328 ASDEP=$ASDEP
3329 CC_DEPFLAGS=$CC_DEPFLAGS
3330 AS_DEPFLAGS=$AS_DEPFLAGS
3331 HOSTCC=$host_cc
3332 HOSTCFLAGS=$host_cflags
3333 HOSTEXESUF=$HOSTEXESUF
3334 HOSTLDFLAGS=$host_ldflags
3335 HOSTLIBS=$host_libs
3336 TARGET_EXEC=$target_exec
3337 TARGET_PATH=$target_path
3338 SDL_LIBS=$sdl_libs
3339 SDL_CFLAGS=$sdl_cflags
3340 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3341 EXTRALIBS=$extralibs
3342 INSTALL=$install
3343 LIBTARGET=${LIBTARGET}
3344 SLIBNAME=${SLIBNAME}
3345 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3346 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3347 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3348 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3349 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3350 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3351 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3352 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3353 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3354 EOF
3355
3356 get_version(){
3357     name=$1
3358     file=$source_path/$2
3359     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3360     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3361     lcname=$(tolower $name)
3362     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3363     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3364 }
3365
3366 get_version LIBSWSCALE  libswscale/swscale.h
3367 get_version LIBPOSTPROC libpostproc/postprocess.h
3368 get_version LIBAVCODEC  libavcodec/version.h
3369 get_version LIBAVDEVICE libavdevice/avdevice.h
3370 get_version LIBAVFORMAT libavformat/version.h
3371 get_version LIBAVUTIL   libavutil/avutil.h
3372 get_version LIBAVFILTER libavfilter/avfilter.h
3373
3374 cat > $TMPH <<EOF
3375 /* Automatically generated by configure - do not modify! */
3376 #ifndef FFMPEG_CONFIG_H
3377 #define FFMPEG_CONFIG_H
3378 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3379 #define FFMPEG_LICENSE "$(c_escape $license)"
3380 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3381 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3382 #define CC_TYPE "$cc_type"
3383 #define CC_VERSION $cc_version
3384 #define restrict $_restrict
3385 #define EXTERN_PREFIX "${extern_prefix}"
3386 #define EXTERN_ASM ${extern_prefix}
3387 #define SLIBSUF "$SLIBSUF"
3388 EOF
3389
3390 test -n "$malloc_prefix" &&
3391     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3392
3393 if enabled small || disabled optimizations; then
3394     echo "#undef  av_always_inline"  >> $TMPH
3395     if enabled small; then
3396         echo "#define av_always_inline inline"  >> $TMPH
3397     else
3398         echo "#define av_always_inline av_unused"  >> $TMPH
3399     fi
3400 fi
3401
3402 if enabled yasm; then
3403     append config_files $TMPASM
3404     printf '' >$TMPASM
3405 fi
3406
3407 print_config ARCH_   "$config_files" $ARCH_LIST
3408 print_config HAVE_   "$config_files" $HAVE_LIST
3409 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3410                                      $CONFIG_EXTRA      \
3411                                      $DECODER_LIST      \
3412                                      $ENCODER_LIST      \
3413                                      $HWACCEL_LIST      \
3414                                      $PARSER_LIST       \
3415                                      $BSF_LIST          \
3416                                      $DEMUXER_LIST      \
3417                                      $MUXER_LIST        \
3418                                      $FILTER_LIST       \
3419                                      $PROTOCOL_LIST     \
3420                                      $INDEV_LIST        \
3421                                      $OUTDEV_LIST       \
3422
3423 cat >>config.mak <<EOF
3424 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3425 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3426 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3427 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3428 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3429 EOF
3430
3431 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3432 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3433
3434 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3435 cp_if_changed $TMPH config.h
3436 touch .config
3437
3438 enabled yasm && cp_if_changed $TMPASM config.asm
3439
3440 cat > $TMPH <<EOF
3441 /* Generated by ffconf */
3442 #ifndef AVUTIL_AVCONFIG_H
3443 #define AVUTIL_AVCONFIG_H
3444 EOF
3445
3446 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3447
3448 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3449
3450 cp_if_changed $TMPH libavutil/avconfig.h
3451
3452 test -n "$WARNINGS" && printf "\n$WARNINGS"
3453
3454 # build pkg-config files
3455
3456 pkgconfig_generate(){
3457 name=$1
3458 shortname=${name#lib}${build_suffix}
3459 comment=$2
3460 version=$3
3461 libs=$4
3462 requires=$5
3463 enabled ${name#lib} || return 0
3464 mkdir -p $name
3465 cat <<EOF > $name/$name.pc
3466 prefix=$prefix
3467 exec_prefix=\${prefix}
3468 libdir=$libdir
3469 includedir=$incdir
3470
3471 Name: $name
3472 Description: $comment
3473 Version: $version
3474 Requires: $(enabled shared || echo $requires)
3475 Requires.private: $(enabled shared && echo $requires)
3476 Conflicts:
3477 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3478 Libs.private: $(enabled shared && echo $libs)
3479 Cflags: -I\${includedir}
3480 EOF
3481 cat <<EOF > $name/$name-uninstalled.pc
3482 prefix=
3483 exec_prefix=
3484 libdir=\${pcfiledir}
3485 includedir=${source_path}
3486
3487 Name: $name
3488 Description: $comment
3489 Version: $version
3490 Requires: $requires
3491 Conflicts:
3492 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3493 Cflags: -I\${includedir}
3494 EOF
3495 }
3496
3497 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3498 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3499 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3500 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3501 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3502 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3503 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"