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