configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --disable-postproc       disable libpostproc build
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --enable-vaapi           enable VAAPI code
 110   --enable-vdpau           enable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
 164   --enable-frei0r          enable frei0r video filtering
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libopencv       enable video filtering via libopencv [no]
 168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 169                            and libraw1394 [no]
 170   --enable-libdirac        enable Dirac support via libdirac [no]
 171   --enable-libfaac         enable FAAC support via libfaac [no]
 172   --enable-libfreetype     enable libfreetype [no]
 173   --enable-libgsm          enable GSM support via libgsm [no]
 174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 175   --enable-libnut          enable NUT (de)muxing via libnut,
 176                            native (de)muxer exists [no]
 177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 180   --enable-libspeex        enable Speex decoding via libspeex [no]
 181   --enable-libtheora       enable Theora encoding via libtheora [no]
 182   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 183   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 184   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 185                            native implementation exists [no]
 186   --enable-libvpx          enable VP8 support via libvpx [no]
 187   --enable-libx264         enable H.264 encoding via x264 [no]
 188   --enable-libxavs         enable AVS encoding via xavs [no]
 189   --enable-libxvid         enable Xvid encoding via xvidcore,
 190                            native MPEG-4/Xvid encoder exists [no]
 191   --enable-openal          enable OpenAL 1.1 capture support [no]
 192   --enable-mlib            enable Sun medialib [no]
 193   --enable-zlib            enable zlib [autodetect]
 194
 195 Advanced options (experts only):
 196   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 197   --enable-cross-compile   assume a cross-compiler is used
 198   --sysroot=PATH           root of cross-build tree
 199   --sysinclude=PATH        location of cross-build system headers
 200   --target-os=OS           compiler targets OS [$target_os]
 201   --target-exec=CMD        command to run executables on target
 202   --target-path=DIR        path to view of build directory on target
 203   --nm=NM                  use nm tool
 204   --ar=AR                  use archive tool AR [$ar_default]
 205   --as=AS                  use assembler AS [$as_default]
 206   --cc=CC                  use C compiler CC [$cc_default]
 207   --ld=LD                  use linker LD
 208   --host-cc=HOSTCC         use host C compiler HOSTCC
 209   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 210   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 211   --host-libs=HLIBS        use libs HLIBS when linking for host
 212   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 213   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 214   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 215   --extra-version=STRING   version string suffix []
 216   --build-suffix=SUFFIX    library name suffix []
 217   --arch=ARCH              select architecture [$arch]
 218   --cpu=CPU                select the minimum required CPU (affects
 219                            instruction selection, may crash on older CPUs)
 220   --disable-asm            disable all assembler optimizations
 221   --disable-altivec        disable AltiVec optimizations
 222   --disable-amd3dnow       disable 3DNow! optimizations
 223   --disable-amd3dnowext    disable 3DNow! extended optimizations
 224   --disable-mmx            disable MMX optimizations
 225   --disable-mmx2           disable MMX2 optimizations
 226   --disable-sse            disable SSE optimizations
 227   --disable-ssse3          disable SSSE3 optimizations
 228   --disable-avx            disable AVX optimizations
 229   --disable-armv5te        disable armv5te optimizations
 230   --disable-armv6          disable armv6 optimizations
 231   --disable-armv6t2        disable armv6t2 optimizations
 232   --disable-armvfp         disable ARM VFP optimizations
 233   --disable-iwmmxt         disable iwmmxt optimizations
 234   --disable-mmi            disable MMI optimizations
 235   --disable-neon           disable neon optimizations
 236   --disable-vis            disable VIS optimizations
 237   --disable-yasm           disable use of yasm assembler
 238   --enable-pic             build position-independent code
 239   --malloc-prefix=PFX      prefix malloc and related names with PFX
 240   --enable-sram            allow use of on-chip SRAM
 241   --disable-symver         disable symbol versioning
 242   --optflags               override optimization-related compiler flags
 243
 244 Developer options (useful when working on FFmpeg itself):
 245   --disable-debug          disable debugging symbols
 246   --enable-debug=LEVEL     set the debug level [$debuglevel]
 247   --disable-optimizations  disable compiler optimizations
 248   --enable-extra-warnings  enable more compiler warnings
 249   --disable-stripping      disable stripping of executables and shared libraries
 250   --samples=PATH           location of test samples for FATE, if not set use
 251                            \$FATE_SAMPLES at make invocation time.
 252
 253 NOTE: Object files are built at the place where configure is launched.
 254 EOF
 255   exit 0
 256 }
 257
 258 quotes='""'
 259
 260 log(){
 261     echo "$@" >> $logfile
 262 }
 263
 264 log_file(){
 265     log BEGIN $1
 266     pr -n -t $1 >> $logfile
 267     log END $1
 268 }
 269
 270 echolog(){
 271     log "$@"
 272     echo "$@"
 273 }
 274
 275 warn(){
 276     log "WARNING: $*"
 277     WARNINGS="${WARNINGS}WARNING: $*\n"
 278 }
 279
 280 die(){
 281     echolog "$@"
 282     cat <<EOF
 283
 284 If you think configure made a mistake, make sure you are using the latest
 285 version from Git.  If the latest version fails, report the problem to the
 286 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 287 EOF
 288     if disabled logging; then
 289         cat <<EOF
 290 Rerun configure with logging enabled (do not use --disable-logging), and
 291 include the log this produces with your report.
 292 EOF
 293     else
 294 cat <<EOF
 295 Include the log file "$logfile" produced by configure as this will help
 296 solving the problem.
 297 EOF
 298     fi
 299     exit 1
 300 }
 301
 302 # Avoid locale weirdness, besides we really just want to translate ASCII.
 303 toupper(){
 304     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 305 }
 306
 307 tolower(){
 308     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 309 }
 310
 311 c_escape(){
 312     echo "$*" | sed 's/["\\]/\\\0/g'
 313 }
 314
 315 sh_quote(){
 316     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 317     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 318     echo "$v"
 319 }
 320
 321 cleanws(){
 322     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 323 }
 324
 325 filter(){
 326     pat=$1
 327     shift
 328     for v; do
 329         eval "case $v in $pat) echo $v ;; esac"
 330     done
 331 }
 332
 333 filter_out(){
 334     pat=$1
 335     shift
 336     for v; do
 337         eval "case $v in $pat) ;; *) echo $v ;; esac"
 338     done
 339 }
 340
 341 map(){
 342     m=$1
 343     shift
 344     for v; do eval $m; done
 345 }
 346
 347 set_all(){
 348     value=$1
 349     shift
 350     for var in $*; do
 351         eval $var=$value
 352     done
 353 }
 354
 355 set_weak(){
 356     value=$1
 357     shift
 358     for var; do
 359         eval : \${$var:=$value}
 360     done
 361 }
 362
 363 set_safe(){
 364     var=$1
 365     shift
 366     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 367 }
 368
 369 get_safe(){
 370     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 371 }
 372
 373 pushvar(){
 374     for var in $*; do
 375         eval level=\${${var}_level:=0}
 376         eval ${var}_${level}="\$$var"
 377         eval ${var}_level=$(($level+1))
 378     done
 379 }
 380
 381 popvar(){
 382     for var in $*; do
 383         eval level=\${${var}_level:-0}
 384         test $level = 0 && continue
 385         eval level=$(($level-1))
 386         eval $var="\${${var}_${level}}"
 387         eval ${var}_level=$level
 388         eval unset ${var}_${level}
 389     done
 390 }
 391
 392 enable(){
 393     set_all yes $*
 394 }
 395
 396 disable(){
 397     set_all no $*
 398 }
 399
 400 enable_weak(){
 401     set_weak yes $*
 402 }
 403
 404 disable_weak(){
 405     set_weak no $*
 406 }
 407
 408 enable_safe(){
 409     for var; do
 410         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 411     done
 412 }
 413
 414 disable_safe(){
 415     for var; do
 416         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 417     done
 418 }
 419
 420 do_enable_deep(){
 421     for var; do
 422         enabled $var && continue
 423         eval sel="\$${var}_select"
 424         eval sgs="\$${var}_suggest"
 425         pushvar var sgs
 426         enable_deep $sel
 427         popvar sgs
 428         enable_deep_weak $sgs
 429         popvar var
 430     done
 431 }
 432
 433 enable_deep(){
 434     do_enable_deep $*
 435     enable $*
 436 }
 437
 438 enable_deep_weak(){
 439     do_enable_deep $*
 440     enable_weak $*
 441 }
 442
 443 enabled(){
 444     test "${1#!}" = "$1" && op== || op=!=
 445     eval test "x\$${1#!}" $op "xyes"
 446 }
 447
 448 disabled(){
 449     test "${1#!}" = "$1" && op== || op=!=
 450     eval test "x\$${1#!}" $op "xno"
 451 }
 452
 453 enabled_all(){
 454     for opt; do
 455         enabled $opt || return 1
 456     done
 457 }
 458
 459 disabled_all(){
 460     for opt; do
 461         disabled $opt || return 1
 462     done
 463 }
 464
 465 enabled_any(){
 466     for opt; do
 467         enabled $opt && return 0
 468     done
 469 }
 470
 471 disabled_any(){
 472     for opt; do
 473         disabled $opt && return 0
 474     done
 475     return 1
 476 }
 477
 478 set_default(){
 479     for opt; do
 480         eval : \${$opt:=\$${opt}_default}
 481     done
 482 }
 483
 484 is_in(){
 485     value=$1
 486     shift
 487     for var in $*; do
 488         [ $var = $value ] && return 0
 489     done
 490     return 1
 491 }
 492
 493 check_deps(){
 494     for cfg; do
 495         cfg="${cfg#!}"
 496         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 497         disabled ${cfg}_checking && continue
 498         enable ${cfg}_checking
 499
 500         eval dep_all="\$${cfg}_deps"
 501         eval dep_any="\$${cfg}_deps_any"
 502         eval dep_sel="\$${cfg}_select"
 503         eval dep_sgs="\$${cfg}_suggest"
 504         eval dep_ifa="\$${cfg}_if"
 505         eval dep_ifn="\$${cfg}_if_any"
 506
 507         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 508         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 509         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 510
 511         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 512         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 513         enabled_all  $dep_all || disable $cfg
 514         enabled_any  $dep_any || disable $cfg
 515         disabled_any $dep_sel && disable $cfg
 516
 517         if enabled $cfg; then
 518             eval dep_extralibs="\$${cfg}_extralibs"
 519             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 520             enable_deep $dep_sel
 521             enable_deep_weak $dep_sgs
 522         fi
 523
 524         disable ${cfg}_checking
 525     done
 526 }
 527
 528 print_config_h(){
 529     enabled $1 && v=1 || v=0
 530     echo "#define $2 $v"
 531 }
 532
 533 print_config_mak(){
 534     enabled $1 && v= || v=!
 535     echo "$v$2=yes"
 536 }
 537
 538 print_config_asm(){
 539     enabled $1 && echo "%define $2"
 540 }
 541
 542 print_config(){
 543     pfx=$1
 544     files=$2
 545     shift 2
 546     for cfg; do
 547         ucname="$(toupper $cfg)"
 548         for f in $files; do
 549             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 550         done
 551     done
 552 }
 553
 554 print_enabled(){
 555     test "$1" = -n && end=" " && shift || end="\n"
 556     suf=$1
 557     shift
 558     for v; do
 559         enabled $v && printf "%s$end" ${v%$suf};
 560     done
 561 }
 562
 563 append(){
 564     var=$1
 565     shift
 566     eval "$var=\"\$$var $*\""
 567 }
 568
 569 prepend(){
 570     var=$1
 571     shift
 572     eval "$var=\"$* \$$var\""
 573 }
 574
 575 add_cppflags(){
 576     append CPPFLAGS $($filter_cppflags "$@")
 577 }
 578
 579 add_cflags(){
 580     append CFLAGS $($filter_cflags "$@")
 581 }
 582
 583 add_asflags(){
 584     append ASFLAGS $($filter_asflags "$@")
 585 }
 586
 587 add_ldflags(){
 588     append LDFLAGS "$@"
 589 }
 590
 591 add_extralibs(){
 592     prepend extralibs "$@"
 593 }
 594
 595 check_cmd(){
 596     log "$@"
 597     "$@" >> $logfile 2>&1
 598 }
 599
 600 check_cc(){
 601     log check_cc "$@"
 602     cat > $TMPC
 603     log_file $TMPC
 604     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 605 }
 606
 607 check_cpp(){
 608     log check_cpp "$@"
 609     cat > $TMPC
 610     log_file $TMPC
 611     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 612 }
 613
 614 check_as(){
 615     log check_as "$@"
 616     cat > $TMPC
 617     log_file $TMPC
 618     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 619 }
 620
 621 check_asm(){
 622     log check_asm "$@"
 623     name="$1"
 624     code="$2"
 625     shift 2
 626     disable $name
 627     check_as "$@" <<EOF && enable $name
 628 void foo(void){ __asm__ volatile($code); }
 629 EOF
 630 }
 631
 632 check_yasm(){
 633     log check_yasm "$@"
 634     echo "$1" > $TMPS
 635     log_file $TMPS
 636     shift 1
 637     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 638 }
 639
 640 check_ld(){
 641     log check_ld "$@"
 642     flags=''
 643     libs=''
 644     for f; do
 645         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 646     done
 647     check_cc $($filter_cflags $flags) || return
 648     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 649 }
 650
 651 check_cppflags(){
 652     log check_cppflags "$@"
 653     set -- $($filter_cppflags "$@")
 654     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 655 int x;
 656 EOF
 657 }
 658
 659 check_cflags(){
 660     log check_cflags "$@"
 661     set -- $($filter_cflags "$@")
 662     check_cc "$@" <<EOF && append CFLAGS "$@"
 663 int x;
 664 EOF
 665 }
 666
 667 test_ldflags(){
 668     log test_ldflags "$@"
 669     check_ld "$@" <<EOF
 670 int main(void){ return 0; }
 671 EOF
 672 }
 673
 674 check_ldflags(){
 675     log check_ldflags "$@"
 676     test_ldflags "$@" && add_ldflags "$@"
 677 }
 678
 679 check_header(){
 680     log check_header "$@"
 681     header=$1
 682     shift
 683     disable_safe $header
 684     check_cpp "$@" <<EOF && enable_safe $header
 685 #include <$header>
 686 int x;
 687 EOF
 688 }
 689
 690 check_func(){
 691     log check_func "$@"
 692     func=$1
 693     shift
 694     disable $func
 695     check_ld "$@" <<EOF && enable $func
 696 extern int $func();
 697 int main(void){ $func(); }
 698 EOF
 699 }
 700
 701 check_mathfunc(){
 702     log check_mathfunc "$@"
 703     func=$1
 704     shift
 705     disable $func
 706     check_ld "$@" <<EOF && enable $func
 707 #include <math.h>
 708 float foo(float f) { return $func(f); }
 709 int main(void){ return 0; }
 710 EOF
 711 }
 712
 713 check_func_headers(){
 714     log check_func_headers "$@"
 715     headers=$1
 716     funcs=$2
 717     shift 2
 718     {
 719         for hdr in $headers; do
 720             echo "#include <$hdr>"
 721         done
 722         for func in $funcs; do
 723             echo "long check_$func(void) { return (long) $func; }"
 724         done
 725         echo "int main(void) { return 0; }"
 726     } | check_ld "$@" && enable $funcs && enable_safe $headers
 727 }
 728
 729 check_cpp_condition(){
 730     log check_cpp_condition "$@"
 731     header=$1
 732     condition=$2
 733     shift 2
 734     check_cpp $($filter_cppflags "$@") <<EOF
 735 #include <$header>
 736 #if !($condition)
 737 #error "unsatisfied condition: $condition"
 738 #endif
 739 EOF
 740 }
 741
 742 check_lib(){
 743     log check_lib "$@"
 744     header="$1"
 745     func="$2"
 746     shift 2
 747     check_header $header && check_func $func "$@" && add_extralibs "$@"
 748 }
 749
 750 check_lib2(){
 751     log check_lib2 "$@"
 752     headers="$1"
 753     funcs="$2"
 754     shift 2
 755     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 756 }
 757
 758 check_pkg_config(){
 759     log check_pkg_config "$@"
 760     pkg="$1"
 761     headers="$2"
 762     funcs="$3"
 763     shift 3
 764     $pkg_config --exists $pkg 2>/dev/null || return
 765     pkg_cflags=$($pkg_config --cflags $pkg)
 766     pkg_libs=$($pkg_config --libs $pkg)
 767     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 768         set_safe ${pkg}_cflags $pkg_cflags   &&
 769         set_safe ${pkg}_libs   $pkg_libs
 770 }
 771
 772 check_exec(){
 773     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 774 }
 775
 776 check_exec_crash(){
 777     code=$(cat)
 778
 779     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 780     # are safe but may not be available everywhere.  Thus we use
 781     # raise(SIGTERM) instead.  The check is run in a subshell so we
 782     # can redirect the "Terminated" message from the shell.  SIGBUS
 783     # is not defined by standard C so it is used conditionally.
 784
 785     (check_exec "$@") >> $logfile 2>&1 <<EOF
 786 #include <signal.h>
 787 static void sighandler(int sig){
 788     raise(SIGTERM);
 789 }
 790 int main(void){
 791     signal(SIGILL, sighandler);
 792     signal(SIGFPE, sighandler);
 793     signal(SIGSEGV, sighandler);
 794 #ifdef SIGBUS
 795     signal(SIGBUS, sighandler);
 796 #endif
 797     { $code }
 798 }
 799 EOF
 800 }
 801
 802 check_type(){
 803     log check_type "$@"
 804     headers=$1
 805     type=$2
 806     shift 2
 807     disable_safe "$type"
 808     incs=""
 809     for hdr in $headers; do
 810         incs="$incs
 811 #include <$hdr>"
 812     done
 813     check_cc "$@" <<EOF && enable_safe "$type"
 814 $incs
 815 $type v;
 816 EOF
 817 }
 818
 819 check_struct(){
 820     log check_type "$@"
 821     headers=$1
 822     struct=$2
 823     member=$3
 824     shift 3
 825     disable_safe "${struct}_${member}"
 826     incs=""
 827     for hdr in $headers; do
 828         incs="$incs
 829 #include <$hdr>"
 830     done
 831     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 832 $incs
 833 const void *p = &(($struct *)0)->$member;
 834 EOF
 835 }
 836
 837 require(){
 838     name="$1"
 839     header="$2"
 840     func="$3"
 841     shift 3
 842     check_lib $header $func "$@" || die "ERROR: $name not found"
 843 }
 844
 845 require2(){
 846     name="$1"
 847     headers="$2"
 848     func="$3"
 849     shift 3
 850     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 851 }
 852
 853 require_pkg_config(){
 854     pkg="$1"
 855     check_pkg_config "$@" || die "ERROR: $pkg not found"
 856     add_cflags    $(get_safe ${pkg}_cflags)
 857     add_extralibs $(get_safe ${pkg}_libs)
 858 }
 859
 860 check_host_cc(){
 861     log check_host_cc "$@"
 862     cat > $TMPC
 863     log_file $TMPC
 864     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 865 }
 866
 867 check_host_cflags(){
 868     log check_host_cflags "$@"
 869     check_host_cc "$@" <<EOF && append host_cflags "$@"
 870 int x;
 871 EOF
 872 }
 873
 874 apply(){
 875     file=$1
 876     shift
 877     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 878 }
 879
 880 cp_if_changed(){
 881     cmp -s "$1" "$2" &&
 882         echo "$2 is unchanged" ||
 883         cp -f "$1" "$2"
 884 }
 885
 886 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 887 # system-dependent things.
 888
 889 COMPONENT_LIST="
 890     bsfs
 891     decoders
 892     demuxers
 893     encoders
 894     filters
 895     hwaccels
 896     indevs
 897     muxers
 898     outdevs
 899     parsers
 900     protocols
 901 "
 902
 903 CONFIG_LIST="
 904     $COMPONENT_LIST
 905     aandct
 906     ac3dsp
 907     avcodec
 908     avdevice
 909     avfilter
 910     avformat
 911     avisynth
 912     bzlib
 913     crystalhd
 914     dct
 915     doc
 916     dwt
 917     dxva2
 918     fastdiv
 919     ffmpeg
 920     ffplay
 921     ffprobe
 922     ffserver
 923     fft
 924     frei0r
 925     golomb
 926     gpl
 927     gray
 928     h264dsp
 929     h264pred
 930     hardcoded_tables
 931     huffman
 932     libcelt
 933     libdc1394
 934     libdirac
 935     libfaac
 936     libfreetype
 937     libgsm
 938     libmp3lame
 939     libnut
 940     libopencore_amrnb
 941     libopencore_amrwb
 942     libopencv
 943     libopenjpeg
 944     librtmp
 945     libschroedinger
 946     libspeex
 947     libtheora
 948     libvo_aacenc
 949     libvo_amrwbenc
 950     libvorbis
 951     libvpx
 952     libx264
 953     libxavs
 954     libxvid
 955     lpc
 956     lsp
 957     mdct
 958     memalign_hack
 959     mlib
 960     mpegaudiodsp
 961     network
 962     nonfree
 963     openal
 964     pic
 965     postproc
 966     rdft
 967     rtpdec
 968     runtime_cpudetect
 969     shared
 970     sinewin
 971     small
 972     sram
 973     static
 974     swscale
 975     swscale_alpha
 976     thumb
 977     vaapi
 978     vdpau
 979     version3
 980     x11grab
 981     zlib
 982 "
 983
 984 THREADS_LIST='
 985     pthreads
 986     w32threads
 987 '
 988
 989 ARCH_LIST='
 990     alpha
 991     arm
 992     avr32
 993     avr32_ap
 994     avr32_uc
 995     bfin
 996     ia64
 997     m68k
 998     mips
 999     mips64
1000     parisc
1001     ppc
1002     ppc64
1003     s390
1004     sh4
1005     sparc
1006     sparc64
1007     tomi
1008     x86
1009     x86_32
1010     x86_64
1011 '
1012
1013 ARCH_EXT_LIST='
1014     altivec
1015     amd3dnow
1016     amd3dnowext
1017     armv5te
1018     armv6
1019     armv6t2
1020     armvfp
1021     avx
1022     iwmmxt
1023     mmi
1024     mmx
1025     mmx2
1026     neon
1027     ppc4xx
1028     sse
1029     ssse3
1030     vfpv3
1031     vis
1032 '
1033
1034 HAVE_LIST_PUB='
1035     bigendian
1036     fast_unaligned
1037 '
1038
1039 HAVE_LIST="
1040     $ARCH_EXT_LIST
1041     $HAVE_LIST_PUB
1042     $THREADS_LIST
1043     aligned_stack
1044     alsa_asoundlib_h
1045     altivec_h
1046     arpa_inet_h
1047     attribute_may_alias
1048     attribute_packed
1049     bswap
1050     closesocket
1051     cmov
1052     dcbzl
1053     dev_bktr_ioctl_bt848_h
1054     dev_bktr_ioctl_meteor_h
1055     dev_ic_bt8xx_h
1056     dev_video_meteor_ioctl_meteor_h
1057     dev_video_bktr_ioctl_bt848_h
1058     dlfcn_h
1059     dlopen
1060     dos_paths
1061     ebp_available
1062     ebx_available
1063     exp2
1064     exp2f
1065     fast_64bit
1066     fast_clz
1067     fast_cmov
1068     fcntl
1069     fork
1070     getaddrinfo
1071     gethrtime
1072     GetProcessMemoryInfo
1073     GetProcessTimes
1074     getrusage
1075     gnu_as
1076     struct_rusage_ru_maxrss
1077     ibm_asm
1078     inet_aton
1079     inline_asm
1080     isatty
1081     kbhit
1082     ldbrx
1083     llrint
1084     llrintf
1085     local_aligned_16
1086     local_aligned_8
1087     localtime_r
1088     log2
1089     log2f
1090     loongson
1091     lrint
1092     lrintf
1093     lzo1x_999_compress
1094     machine_ioctl_bt848_h
1095     machine_ioctl_meteor_h
1096     malloc_h
1097     MapViewOfFile
1098     memalign
1099     mkstemp
1100     mmap
1101     pld
1102     posix_memalign
1103     round
1104     roundf
1105     sdl
1106     sdl_video_size
1107     setmode
1108     sndio_h
1109     socklen_t
1110     soundcard_h
1111     poll_h
1112     setrlimit
1113     strerror_r
1114     strtok_r
1115     struct_addrinfo
1116     struct_ipv6_mreq
1117     struct_sockaddr_in6
1118     struct_sockaddr_sa_len
1119     struct_sockaddr_storage
1120     symver
1121     symver_gnu_asm
1122     symver_asm_label
1123     sys_mman_h
1124     sys_resource_h
1125     sys_select_h
1126     sys_soundcard_h
1127     sys_videoio_h
1128     ten_operands
1129     termios_h
1130     threads
1131     trunc
1132     truncf
1133     vfp_args
1134     VirtualAlloc
1135     winsock2_h
1136     xform_asm
1137     xmm_clobbers
1138     yasm
1139 "
1140
1141 # options emitted with CONFIG_ prefix but not available on command line
1142 CONFIG_EXTRA="
1143     avutil
1144     gplv3
1145     lgplv3
1146 "
1147
1148 CMDLINE_SELECT="
1149     $ARCH_EXT_LIST
1150     $CONFIG_LIST
1151     $THREADS_LIST
1152     asm
1153     cross_compile
1154     debug
1155     extra_warnings
1156     logging
1157     optimizations
1158     stripping
1159     symver
1160     yasm
1161 "
1162
1163 PATHS_LIST='
1164     bindir
1165     datadir
1166     incdir
1167     libdir
1168     mandir
1169     prefix
1170     shlibdir
1171 '
1172
1173 CMDLINE_SET="
1174     $PATHS_LIST
1175     ar
1176     arch
1177     as
1178     build_suffix
1179     cc
1180     cpu
1181     cross_prefix
1182     dep_cc
1183     extra_version
1184     host_cc
1185     host_cflags
1186     host_ldflags
1187     host_libs
1188     host_os
1189     install
1190     ld
1191     logfile
1192     malloc_prefix
1193     nm
1194     optflags
1195     pkg_config
1196     samples
1197     strip
1198     sysinclude
1199     sysroot
1200     target_exec
1201     target_os
1202     target_path
1203 "
1204
1205 CMDLINE_APPEND="
1206     extra_cflags
1207 "
1208
1209 # code dependency declarations
1210
1211 # architecture extensions
1212
1213 armv5te_deps="arm"
1214 armv6_deps="arm"
1215 armv6t2_deps="arm"
1216 armvfp_deps="arm"
1217 iwmmxt_deps="arm"
1218 neon_deps="arm"
1219 vfpv3_deps="armvfp"
1220
1221 mmi_deps="mips"
1222
1223 altivec_deps="ppc"
1224 ppc4xx_deps="ppc"
1225
1226 vis_deps="sparc"
1227
1228 x86_64_suggest="cmov fast_cmov"
1229 amd3dnow_deps="mmx"
1230 amd3dnowext_deps="amd3dnow"
1231 mmx_deps="x86"
1232 mmx2_deps="mmx"
1233 sse_deps="mmx"
1234 ssse3_deps="sse"
1235 avx_deps="ssse3"
1236
1237 aligned_stack_if_any="ppc x86"
1238 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1239 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1240 fast_unaligned_if_any="armv6 ppc x86"
1241
1242 need_memalign="altivec neon sse"
1243 inline_asm_deps="!tms470"
1244
1245 symver_if_any="symver_asm_label symver_gnu_asm"
1246
1247 # subsystems
1248 dct_select="rdft"
1249 mdct_select="fft"
1250 rdft_select="fft"
1251 mpegaudiodsp_select="dct"
1252
1253 # decoders / encoders / hardware accelerators
1254 aac_decoder_select="mdct sinewin"
1255 aac_encoder_select="mdct sinewin"
1256 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1257 ac3_decoder_select="mdct ac3dsp ac3_parser"
1258 ac3_encoder_select="mdct ac3dsp"
1259 ac3_fixed_encoder_select="mdct ac3dsp"
1260 alac_encoder_select="lpc"
1261 amrnb_decoder_select="lsp"
1262 amrwb_decoder_select="lsp"
1263 atrac1_decoder_select="mdct sinewin"
1264 atrac3_decoder_select="mdct"
1265 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1266 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1267 cavs_decoder_select="golomb"
1268 cook_decoder_select="mdct sinewin"
1269 cscd_decoder_suggest="zlib"
1270 dca_decoder_select="mdct"
1271 dnxhd_encoder_select="aandct"
1272 dxa_decoder_select="zlib"
1273 eac3_decoder_select="ac3_decoder"
1274 eac3_encoder_select="mdct ac3dsp"
1275 eamad_decoder_select="aandct"
1276 eatgq_decoder_select="aandct"
1277 eatqi_decoder_select="aandct"
1278 ffv1_decoder_select="golomb"
1279 flac_decoder_select="golomb"
1280 flac_encoder_select="golomb lpc"
1281 flashsv_decoder_select="zlib"
1282 flashsv_encoder_select="zlib"
1283 flashsv2_encoder_select="zlib"
1284 flv_decoder_select="h263_decoder"
1285 flv_encoder_select="h263_encoder"
1286 fraps_decoder_select="huffman"
1287 h261_encoder_select="aandct"
1288 h263_decoder_select="h263_parser"
1289 h263_encoder_select="aandct"
1290 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1291 h263i_decoder_select="h263_decoder"
1292 h263p_encoder_select="h263_encoder"
1293 h264_decoder_select="golomb h264dsp h264pred"
1294 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1295 h264_dxva2_hwaccel_deps="dxva2api_h"
1296 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1297 h264_vaapi_hwaccel_select="vaapi"
1298 h264_vdpau_decoder_select="vdpau h264_decoder"
1299 imc_decoder_select="fft mdct sinewin"
1300 jpegls_decoder_select="golomb"
1301 jpegls_encoder_select="golomb"
1302 ljpeg_encoder_select="aandct"
1303 loco_decoder_select="golomb"
1304 mjpeg_encoder_select="aandct"
1305 mlp_decoder_select="mlp_parser"
1306 mp1_decoder_select="mpegaudiodsp"
1307 mp2_decoder_select="mpegaudiodsp"
1308 mp3adu_decoder_select="mpegaudiodsp"
1309 mp3_decoder_select="mpegaudiodsp"
1310 mp3on4_decoder_select="mpegaudiodsp"
1311 mp1float_decoder_select="mpegaudiodsp"
1312 mp2float_decoder_select="mpegaudiodsp"
1313 mp3adufloat_decoder_select="mpegaudiodsp"
1314 mp3float_decoder_select="mpegaudiodsp"
1315 mp3on4float_decoder_select="mpegaudiodsp"
1316 mpeg1video_encoder_select="aandct"
1317 mpeg2video_encoder_select="aandct"
1318 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1319 mpeg4_encoder_select="h263_encoder"
1320 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1321 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1322 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1323 mpeg2_crystalhd_decoder_select="crystalhd"
1324 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1325 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1326 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1327 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1328 mpeg4_crystalhd_decoder_select="crystalhd"
1329 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1330 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1331 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1332 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1333 msmpeg4_crystalhd_decoder_select="crystalhd"
1334 msmpeg4v1_decoder_select="h263_decoder"
1335 msmpeg4v1_encoder_select="h263_encoder"
1336 msmpeg4v2_decoder_select="h263_decoder"
1337 msmpeg4v2_encoder_select="h263_encoder"
1338 msmpeg4v3_decoder_select="h263_decoder"
1339 msmpeg4v3_encoder_select="h263_encoder"
1340 nellymoser_decoder_select="mdct sinewin"
1341 nellymoser_encoder_select="mdct sinewin"
1342 png_decoder_select="zlib"
1343 png_encoder_select="zlib"
1344 qcelp_decoder_select="lsp"
1345 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1346 ra_144_encoder_select="lpc"
1347 rv10_decoder_select="h263_decoder"
1348 rv10_encoder_select="h263_encoder"
1349 rv20_decoder_select="h263_decoder"
1350 rv20_encoder_select="h263_encoder"
1351 rv30_decoder_select="golomb h264pred"
1352 rv40_decoder_select="golomb h264pred"
1353 shorten_decoder_select="golomb"
1354 sipr_decoder_select="lsp"
1355 snow_decoder_select="dwt"
1356 snow_encoder_select="aandct dwt"
1357 sonic_decoder_select="golomb"
1358 sonic_encoder_select="golomb"
1359 sonic_ls_encoder_select="golomb"
1360 svq1_encoder_select="aandct"
1361 svq3_decoder_select="golomb h264dsp h264pred"
1362 svq3_decoder_suggest="zlib"
1363 theora_decoder_select="vp3_decoder"
1364 tiff_decoder_suggest="zlib"
1365 tiff_encoder_suggest="zlib"
1366 truehd_decoder_select="mlp_decoder"
1367 tscc_decoder_select="zlib"
1368 twinvq_decoder_select="mdct lsp sinewin"
1369 vc1_decoder_select="h263_decoder"
1370 vc1_crystalhd_decoder_select="crystalhd"
1371 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1372 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1373 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1374 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1375 vorbis_decoder_select="mdct"
1376 vorbis_encoder_select="mdct"
1377 vp6_decoder_select="huffman"
1378 vp6a_decoder_select="vp6_decoder"
1379 vp6f_decoder_select="vp6_decoder"
1380 vp8_decoder_select="h264pred"
1381 wmapro_decoder_select="mdct sinewin"
1382 wmav1_decoder_select="mdct sinewin"
1383 wmav1_encoder_select="mdct sinewin"
1384 wmav2_decoder_select="mdct sinewin"
1385 wmav2_encoder_select="mdct sinewin"
1386 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1387 wmv1_decoder_select="h263_decoder"
1388 wmv1_encoder_select="h263_encoder"
1389 wmv2_decoder_select="h263_decoder"
1390 wmv2_encoder_select="h263_encoder"
1391 wmv3_decoder_select="vc1_decoder"
1392 wmv3_crystalhd_decoder_select="crystalhd"
1393 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1394 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1395 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1396 zlib_decoder_select="zlib"
1397 zlib_encoder_select="zlib"
1398 zmbv_decoder_select="zlib"
1399 zmbv_encoder_select="zlib"
1400
1401 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1402 vaapi_deps="va_va_h"
1403 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1404
1405 # parsers
1406 h264_parser_select="golomb h264dsp h264pred"
1407
1408 # external libraries
1409 libcelt_decoder_deps="libcelt"
1410 libdirac_decoder_deps="libdirac !libschroedinger"
1411 libdirac_encoder_deps="libdirac"
1412 libfaac_encoder_deps="libfaac"
1413 libgsm_decoder_deps="libgsm"
1414 libgsm_encoder_deps="libgsm"
1415 libgsm_ms_decoder_deps="libgsm"
1416 libgsm_ms_encoder_deps="libgsm"
1417 libmp3lame_encoder_deps="libmp3lame"
1418 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1419 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1420 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1421 libopenjpeg_decoder_deps="libopenjpeg"
1422 libschroedinger_decoder_deps="libschroedinger"
1423 libschroedinger_encoder_deps="libschroedinger"
1424 libspeex_decoder_deps="libspeex"
1425 libtheora_encoder_deps="libtheora"
1426 libvo_aacenc_encoder_deps="libvo_aacenc"
1427 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1428 libvorbis_encoder_deps="libvorbis"
1429 libvpx_decoder_deps="libvpx"
1430 libvpx_encoder_deps="libvpx"
1431 libx264_encoder_deps="libx264"
1432 libxavs_encoder_deps="libxavs"
1433 libxvid_encoder_deps="libxvid"
1434
1435 # demuxers / muxers
1436 ac3_demuxer_select="ac3_parser"
1437 asf_stream_muxer_select="asf_muxer"
1438 avisynth_demuxer_deps="avisynth"
1439 dirac_demuxer_select="dirac_parser"
1440 eac3_demuxer_select="ac3_parser"
1441 flac_demuxer_select="flac_parser"
1442 ipod_muxer_select="mov_muxer"
1443 libnut_demuxer_deps="libnut"
1444 libnut_muxer_deps="libnut"
1445 matroska_audio_muxer_select="matroska_muxer"
1446 matroska_demuxer_suggest="zlib bzlib"
1447 mov_demuxer_suggest="zlib"
1448 mp3_demuxer_select="mpegaudio_parser"
1449 mp4_muxer_select="mov_muxer"
1450 mpegtsraw_demuxer_select="mpegts_demuxer"
1451 mxf_d10_muxer_select="mxf_muxer"
1452 ogg_demuxer_select="golomb"
1453 psp_muxer_select="mov_muxer"
1454 rtp_demuxer_select="sdp_demuxer"
1455 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1456 rtsp_demuxer_select="http_protocol rtpdec"
1457 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1458 sap_demuxer_select="sdp_demuxer"
1459 sap_muxer_select="rtp_muxer rtp_protocol"
1460 sdp_demuxer_select="rtpdec"
1461 spdif_muxer_select="aac_parser"
1462 tg2_muxer_select="mov_muxer"
1463 tgp_muxer_select="mov_muxer"
1464 w64_demuxer_deps="wav_demuxer"
1465
1466 # indevs / outdevs
1467 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1468 alsa_outdev_deps="alsa_asoundlib_h"
1469 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1470 dshow_indev_deps="IBaseFilter"
1471 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1472 dv1394_indev_deps="dv1394 dv_demuxer"
1473 fbdev_indev_deps="linux_fb_h"
1474 jack_indev_deps="jack_jack_h sem_timedwait"
1475 libdc1394_indev_deps="libdc1394"
1476 openal_indev_deps="openal"
1477 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1478 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1479 sdl_outdev_deps="sdl"
1480 sndio_indev_deps="sndio_h"
1481 sndio_outdev_deps="sndio_h"
1482 v4l_indev_deps="linux_videodev_h"
1483 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1484 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1485 vfwcap_indev_extralibs="-lavicap32"
1486 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1487 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1488
1489 # protocols
1490 gopher_protocol_deps="network"
1491 http_protocol_deps="network"
1492 http_protocol_select="tcp_protocol"
1493 mmsh_protocol_select="http_protocol"
1494 mmst_protocol_deps="network"
1495 rtmp_protocol_select="tcp_protocol"
1496 rtp_protocol_select="udp_protocol"
1497 tcp_protocol_deps="network"
1498 udp_protocol_deps="network"
1499
1500 # filters
1501 blackframe_filter_deps="gpl"
1502 cropdetect_filter_deps="gpl"
1503 drawtext_filter_deps="libfreetype"
1504 frei0r_filter_deps="frei0r dlopen strtok_r"
1505 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1506 hqdn3d_filter_deps="gpl"
1507 movie_filter_deps="avcodec avformat"
1508 mp_filter_deps="gpl avcodec"
1509 negate_filter_deps="lut_filter"
1510 ocv_filter_deps="libopencv"
1511 scale_filter_deps="swscale"
1512 yadif_filter_deps="gpl"
1513
1514 # libraries
1515 avdevice_deps="avcodec avformat"
1516 avformat_deps="avcodec"
1517 postproc_deps="gpl"
1518
1519 # programs
1520 ffmpeg_deps="avcodec avformat swscale"
1521 ffmpeg_select="buffer_filter buffersink_filter"
1522 ffplay_deps="avcodec avformat swscale sdl"
1523 ffplay_select="buffersink_filter rdft"
1524 ffprobe_deps="avcodec avformat"
1525 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1526 ffserver_extralibs='$ldl'
1527
1528 doc_deps="texi2html"
1529
1530 # tests
1531
1532 test_deps(){
1533     suf1=$1
1534     suf2=$2
1535     shift 2
1536     for v; do
1537         dep=${v%=*}
1538         tests=${v#*=}
1539         for name in ${tests}; do
1540             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1541         done
1542     done
1543 }
1544
1545 set_ne_test_deps(){
1546     eval ${1}_be_test_deps="bigendian"
1547     eval ${1}_le_test_deps="!bigendian"
1548 }
1549
1550 test_deps _encoder _decoder                                             \
1551     adpcm_g726=g726                                                     \
1552     adpcm_ima_qt                                                        \
1553     adpcm_ima_wav                                                       \
1554     adpcm_ms                                                            \
1555     adpcm_swf                                                           \
1556     adpcm_yamaha=adpcm_yam                                              \
1557     alac                                                                \
1558     asv1                                                                \
1559     asv2                                                                \
1560     bmp                                                                 \
1561     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1562     dvvideo="dv dv50"                                                   \
1563     ffv1                                                                \
1564     flac                                                                \
1565     flashsv                                                             \
1566     flv                                                                 \
1567     gif                                                                 \
1568     h261                                                                \
1569     h263="h263 h263p"                                                   \
1570     huffyuv                                                             \
1571     jpegls                                                              \
1572     mjpeg="jpg mjpeg ljpeg"                                             \
1573     mp2                                                                 \
1574     mpeg1video="mpeg mpeg1b"                                            \
1575     mpeg2video="mpeg2 mpeg2thread"                                      \
1576     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1577     msmpeg4v3=msmpeg4                                                   \
1578     msmpeg4v2                                                           \
1579     pbm=pbmpipe                                                         \
1580     pcx                                                                 \
1581     pgm="pgm pgmpipe"                                                   \
1582     png                                                                 \
1583     ppm="ppm ppmpipe"                                                   \
1584     rawvideo="rgb yuv"                                                  \
1585     roq                                                                 \
1586     rv10                                                                \
1587     rv20                                                                \
1588     sgi                                                                 \
1589     snow="snow snowll"                                                  \
1590     svq1                                                                \
1591     targa=tga                                                           \
1592     tiff                                                                \
1593     wmav1                                                               \
1594     wmav2                                                               \
1595     wmv1                                                                \
1596     wmv2                                                                \
1597
1598 test_deps _muxer _demuxer                                               \
1599     aiff                                                                \
1600     pcm_alaw=alaw                                                       \
1601     asf                                                                 \
1602     au                                                                  \
1603     avi                                                                 \
1604     dv=dv_fmt                                                           \
1605     ffm                                                                 \
1606     flv=flv_fmt                                                         \
1607     gxf                                                                 \
1608     matroska=mkv                                                        \
1609     mmf                                                                 \
1610     mov                                                                 \
1611     pcm_mulaw=mulaw                                                     \
1612     mxf                                                                 \
1613     nut                                                                 \
1614     ogg                                                                 \
1615     rawvideo=pixfmt                                                     \
1616     rm                                                                  \
1617     swf                                                                 \
1618     mpegts=ts                                                           \
1619     voc                                                                 \
1620     wav                                                                 \
1621     yuv4mpegpipe=yuv4mpeg                                               \
1622
1623 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1624 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1625
1626 set_ne_test_deps pixdesc
1627 set_ne_test_deps pixfmts_copy
1628 set_ne_test_deps pixfmts_crop
1629 set_ne_test_deps pixfmts_hflip
1630 set_ne_test_deps pixfmts_null
1631 set_ne_test_deps pixfmts_pad
1632 set_ne_test_deps pixfmts_scale
1633 set_ne_test_deps pixfmts_vflip
1634
1635 # default parameters
1636
1637 logfile="config.log"
1638
1639 # installation paths
1640 prefix_default="/usr/local"
1641 bindir_default='${prefix}/bin'
1642 datadir_default='${prefix}/share/ffmpeg'
1643 incdir_default='${prefix}/include'
1644 libdir_default='${prefix}/lib'
1645 mandir_default='${prefix}/share/man'
1646 shlibdir_default="$libdir_default"
1647
1648 # toolchain
1649 ar_default="ar"
1650 cc_default="gcc"
1651 cc_version=\"unknown\"
1652 host_cc_default="gcc"
1653 install="install"
1654 ln_s="ln -sf"
1655 nm_default="nm"
1656 objformat="elf"
1657 pkg_config_default=pkg-config
1658 ranlib="ranlib"
1659 strip_default="strip"
1660 yasmexe="yasm"
1661 nogas=":"
1662
1663 nm_opts='-g'
1664
1665 # machine
1666 arch_default=$(uname -m)
1667 cpu="generic"
1668
1669 # OS
1670 target_os_default=$(tolower $(uname -s))
1671 host_os=$target_os_default
1672
1673 # configurable options
1674 enable avcodec
1675 enable avdevice
1676 enable avfilter
1677 enable avformat
1678 enable avutil
1679 enable asm
1680 enable debug
1681 enable doc
1682 enable fastdiv
1683 enable ffmpeg
1684 enable ffplay
1685 enable ffprobe
1686 enable ffserver
1687 enable network
1688 enable optimizations
1689 enable postproc
1690 enable protocols
1691 enable static
1692 enable stripping
1693 enable swscale
1694 enable swscale_alpha
1695
1696 # build settings
1697 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1698 FFSERVERLDFLAGS=-Wl,-E
1699 LIBPREF="lib"
1700 LIBSUF=".a"
1701 FULLNAME='$(NAME)$(BUILDSUF)'
1702 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1703 SLIBPREF="lib"
1704 SLIBSUF=".so"
1705 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1706 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1707 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1708 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1709
1710 AS_O='-o $@'
1711 CC_O='-o $@'
1712
1713 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1714 host_libs='-lm'
1715
1716 target_path='$(CURDIR)'
1717
1718 # since the object filename is not given with the -MM flag, the compiler
1719 # is only able to print the basename, and we must add the path ourselves
1720 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1721 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1722
1723 # find source path
1724 if test -f configure; then
1725     source_path=.
1726     disable source_path_used
1727 else
1728     source_path=$(cd $(dirname "$0"); pwd)
1729     enable source_path_used
1730     echo "$source_path" | grep -q '[[:blank:]]' &&
1731         die "Out of tree builds are impossible with whitespace in source path."
1732     test -e "$source_path/config.h" &&
1733         die "Out of tree builds are impossible with config.h in source dir."
1734 fi
1735
1736 for v in "$@"; do
1737     r=${v#*=}
1738     l=${v%"$r"}
1739     r=$(sh_quote "$r")
1740     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1741 done
1742
1743 find_things(){
1744     thing=$1
1745     pattern=$2
1746     file=$source_path/$3
1747     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1748 }
1749
1750 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1751 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1752 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1753 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1754 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1755 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1756 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1757 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1758 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1759 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1760 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1761
1762 find_tests(){
1763     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1764 }
1765
1766 ACODEC_TESTS=$(find_tests acodec)
1767 VCODEC_TESTS=$(find_tests vsynth1)
1768 LAVF_TESTS=$(find_tests lavf)
1769 LAVFI_TESTS=$(find_tests lavfi)
1770 SEEK_TESTS=$(find_tests seek seek_)
1771
1772 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1773
1774 for n in $COMPONENT_LIST; do
1775     v=$(toupper ${n%s})_LIST
1776     eval enable \$$v
1777     eval ${n}_if_any="\$$v"
1778 done
1779
1780 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1781
1782 die_unknown(){
1783     echo "Unknown option \"$1\"."
1784     echo "See $0 --help for available options."
1785     exit 1
1786 }
1787
1788 show_list() {
1789     suffix=_$1
1790     shift
1791     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1792     exit 0
1793 }
1794
1795 for opt do
1796     optval="${opt#*=}"
1797     case "$opt" in
1798     --extra-ldflags=*) add_ldflags $optval
1799     ;;
1800     --extra-libs=*) add_extralibs $optval
1801     ;;
1802     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1803     ;;
1804     --enable-debug=*) debuglevel="$optval"
1805     ;;
1806     --disable-everything)
1807     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1808     ;;
1809     --enable-*=*|--disable-*=*)
1810     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1811     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1812     eval list=\$$(toupper $thing)_LIST
1813     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1814     $action $(filter "$name" $list)
1815     ;;
1816     --enable-?*|--disable-?*)
1817     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1818     if is_in $option $COMPONENT_LIST; then
1819         test $action = disable && action=unset
1820         eval $action \$$(toupper ${option%s})_LIST
1821     elif is_in $option $CMDLINE_SELECT; then
1822         $action $option
1823     else
1824         die_unknown $opt
1825     fi
1826     ;;
1827     --list-*)
1828         NAME="${opt#--list-}"
1829         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1830         NAME=${NAME%s}
1831         eval show_list $NAME \$$(toupper $NAME)_LIST
1832     ;;
1833     --help|-h) show_help
1834     ;;
1835     *)
1836     optname="${opt%%=*}"
1837     optname="${optname#--}"
1838     optname=$(echo "$optname" | sed 's/-/_/g')
1839     if is_in $optname $CMDLINE_SET; then
1840         eval $optname='$optval'
1841     elif is_in $optname $CMDLINE_APPEND; then
1842         append $optname "$optval"
1843     else
1844          die_unknown $opt
1845     fi
1846     ;;
1847     esac
1848 done
1849
1850 disabled logging && logfile=/dev/null
1851
1852 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1853 set >> $logfile
1854
1855 test -n "$cross_prefix" && enable cross_compile
1856
1857 if enabled cross_compile; then
1858     test -n "$arch" && test -n "$target_os" ||
1859         die "Must specify target arch and OS when cross-compiling"
1860 fi
1861
1862 set_default arch target_os
1863
1864 ar_default="${cross_prefix}${ar_default}"
1865 cc_default="${cross_prefix}${cc_default}"
1866 nm_default="${cross_prefix}${nm_default}"
1867 pkg_config_default="${cross_prefix}${pkg_config_default}"
1868 ranlib="${cross_prefix}${ranlib}"
1869 strip_default="${cross_prefix}${strip_default}"
1870
1871 sysinclude_default="${sysroot}/usr/include"
1872
1873 set_default cc nm pkg_config strip sysinclude
1874 enabled cross_compile || host_cc_default=$cc
1875 set_default host_cc
1876
1877 if ! $pkg_config --version >/dev/null 2>&1; then
1878     warn "$pkg_config not found, library detection may fail."
1879     pkg_config=false
1880 fi
1881
1882 exesuf() {
1883     case $1 in
1884         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1885     esac
1886 }
1887
1888 EXESUF=$(exesuf $target_os)
1889 HOSTEXESUF=$(exesuf $host_os)
1890
1891 # set temporary file name
1892 : ${TMPDIR:=$TEMPDIR}
1893 : ${TMPDIR:=$TMP}
1894 : ${TMPDIR:=/tmp}
1895
1896 if ! check_cmd mktemp -u XXXXXX; then
1897     # simple replacement for missing mktemp
1898     # NOT SAFE FOR GENERAL USE
1899     mktemp(){
1900         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1901     }
1902 fi
1903
1904 tmpfile(){
1905     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1906         (set -C; exec > $tmp) 2>/dev/null ||
1907         die "Unable to create temporary file in $TMPDIR."
1908     append TMPFILES $tmp
1909     eval $1=$tmp
1910 }
1911
1912 trap 'rm -f -- $TMPFILES' EXIT
1913
1914 tmpfile TMPC  .c
1915 tmpfile TMPE  $EXESUF
1916 tmpfile TMPH  .h
1917 tmpfile TMPO  .o
1918 tmpfile TMPS  .S
1919 tmpfile TMPV  .ver
1920 tmpfile TMPSH .sh
1921 tmpfile TMPASM .asm
1922
1923 unset -f mktemp
1924
1925 chmod +x $TMPE
1926
1927 # make sure we can execute files in $TMPDIR
1928 cat > $TMPSH 2>> $logfile <<EOF
1929 #! /bin/sh
1930 EOF
1931 chmod +x $TMPSH >> $logfile 2>&1
1932 if ! $TMPSH >> $logfile 2>&1; then
1933     cat <<EOF
1934 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1935 variable to another directory and make sure that it is not mounted noexec.
1936 EOF
1937     die "Sanity test failed."
1938 fi
1939
1940 filter_cflags=echo
1941 filter_cppflags=echo
1942 filter_asflags=echo
1943
1944 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1945     cc_type=llvm_gcc
1946     cc_version=__VERSION__
1947     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1948     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1949     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1950     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1951     speed_cflags='-O3'
1952     size_cflags='-Os'
1953 elif $cc -v 2>&1 | grep -qi ^gcc; then
1954     cc_type=gcc
1955     cc_version=__VERSION__
1956     gcc_version=$($cc --version | head -n1)
1957     gcc_basever=$($cc -dumpversion)
1958     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1959     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1960     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1961     if ! $cc -dumpversion | grep -q '^2\.'; then
1962         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1963         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1964     fi
1965     speed_cflags='-O3'
1966     size_cflags='-Os'
1967 elif $cc --version 2>/dev/null | grep -q Intel; then
1968     cc_type=icc
1969     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1970     cc_ident=$($cc --version | head -n1)
1971     icc_version=$($cc -dumpversion)
1972     CC_DEPFLAGS='-MMD'
1973     AS_DEPFLAGS='-MMD'
1974     speed_cflags='-O3'
1975     size_cflags='-Os'
1976     noopt_cflags='-O1'
1977 elif $cc -v 2>&1 | grep -q xlc; then
1978     cc_type=xlc
1979     cc_version="AV_STRINGIFY(__IBMC__)"
1980     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1981     speed_cflags='-O5'
1982     size_cflags='-O5 -qcompact'
1983 elif $cc -V 2>/dev/null | grep -q Compaq; then
1984     cc_type=ccc
1985     cc_version="AV_STRINGIFY(__DECC_VER)"
1986     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1987     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1988     debuglevel=3
1989     add_ldflags -Wl,-z,now # calls to libots crash without this
1990     speed_cflags='-fast'
1991     size_cflags='-O1'
1992 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1993     test -d "$sysroot" || die "No valid sysroot specified."
1994     cc_type=armcc
1995     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1996     cc_ident=$($cc --vsn | head -n1)
1997     armcc_conf="$PWD/armcc.conf"
1998     $cc --arm_linux_configure                 \
1999         --arm_linux_config_file="$armcc_conf" \
2000         --configure_sysroot="$sysroot"        \
2001         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2002         die "Error creating armcc configuration file."
2003     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2004     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2005     as_default="${cross_prefix}gcc"
2006     CC_DEPFLAGS='-MMD'
2007     AS_DEPFLAGS='-MMD'
2008     speed_cflags='-O3'
2009     size_cflags='-Os'
2010     filter_asflags="filter_out -W${armcc_opt}*"
2011 elif $cc -version 2>/dev/null | grep -q TMS470; then
2012     cc_type=tms470
2013     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2014     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2015     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2016     CC_O='-fr=$(@D)'
2017     as_default="${cross_prefix}gcc"
2018     ld_default="${cross_prefix}gcc"
2019     TMPO=$(basename $TMPC .c).o
2020     append TMPFILES $TMPO
2021     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2022     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2023     AS_DEPFLAGS='-MMD'
2024     speed_cflags='-O3 -mf=5'
2025     size_cflags='-O3 -mf=2'
2026     filter_cflags=tms470_flags
2027     tms470_flags(){
2028         for flag; do
2029             case $flag in
2030                 -march=*|-mcpu=*)
2031                     case "${flag#*=}" in
2032                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2033                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2034                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2035                         armv6*|arm11*)          echo -mv=6   ;;
2036                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2037                                                 echo -mv=5e  ;;
2038                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2039                     esac
2040                     ;;
2041                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2042                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2043                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2044                 -msoft-float)   echo --float_support=vfplib       ;;
2045                 -O[0-3]|-mf=*)  echo $flag                        ;;
2046                 -g)             echo -g -mn                       ;;
2047                 -pds=*)         echo $flag                        ;;
2048             esac
2049         done
2050     }
2051 elif $cc -v 2>&1 | grep -q clang; then
2052     cc_type=clang
2053     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2054         cc_version=__clang_version__ || cc_version=__VERSION__
2055     cc_ident=$($cc --version | head -n1)
2056     CC_DEPFLAGS='-MMD'
2057     AS_DEPFLAGS='-MMD'
2058     speed_cflags='-O3'
2059     size_cflags='-Os'
2060 elif $cc -V 2>&1 | grep -q Sun; then
2061     cc_type=suncc
2062     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2063     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2064     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2065     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2066     speed_cflags='-O5'
2067     size_cflags='-O5 -xspace'
2068     filter_cflags=suncc_flags
2069     suncc_flags(){
2070         for flag; do
2071             case $flag in
2072                 -march=*|-mcpu=*)
2073                     case "${flag#*=}" in
2074                         native)                   echo -xtarget=native       ;;
2075                         v9|niagara)               echo -xarch=sparc          ;;
2076                         ultrasparc)               echo -xarch=sparcvis       ;;
2077                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2078                         i586|pentium)             echo -xchip=pentium        ;;
2079                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2080                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2081                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2082                         pentium4*)          echo -xtarget=pentium4           ;;
2083                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2084                         *-sse3)             echo -xarch=sse3                 ;;
2085                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2086                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2087                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2088                         k8|opteron|athlon64|athlon-fx)
2089                                                   echo -xarch=sse2a          ;;
2090                         athlon*)                  echo -xarch=pentium_proa   ;;
2091                     esac
2092                     ;;
2093                 -std=c99)             echo -xc99              ;;
2094                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2095                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2096                 -W*,*)                echo $flag              ;;
2097                 -f*-*|-W*)                                    ;;
2098                 *)                    echo $flag              ;;
2099             esac
2100         done
2101     }
2102 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2103     cc_type=pathscale
2104     cc_version=__PATHSCALE__
2105     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2106     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2107     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2108     speed_cflags='-O2'
2109     size_cflags='-Os'
2110     filter_cflags='filter_out -Wdisabled-optimization'
2111 elif $cc -v 2>&1 | grep -q Open64; then
2112     cc_type=open64
2113     cc_version=__OPEN64__
2114     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2115     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2116     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2117     speed_cflags='-O2'
2118     size_cflags='-Os'
2119     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2120 fi
2121
2122 test -n "$cc_type" && enable $cc_type ||
2123     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2124
2125 : ${as_default:=$cc}
2126 : ${dep_cc_default:=$cc}
2127 : ${ld_default:=$cc}
2128 set_default ar as dep_cc ld
2129
2130 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2131 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2132
2133 add_cflags $extra_cflags
2134 add_asflags $extra_cflags
2135
2136 if test -n "$sysroot"; then
2137     case "$cc_type" in
2138         gcc|llvm_gcc|clang)
2139             add_cppflags --sysroot="$sysroot"
2140             add_ldflags --sysroot="$sysroot"
2141         ;;
2142         tms470)
2143             add_cppflags -I"$sysinclude"
2144             add_ldflags  --sysroot="$sysroot"
2145         ;;
2146     esac
2147 fi
2148
2149 if test "$cpu" = host; then
2150     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2151
2152     case "$cc_type" in
2153         gcc|llvm_gcc)
2154             check_native(){
2155                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2156                 sed -n "/$1=/{
2157                             s/.*$1=\\([^ ]*\\).*/\\1/
2158                             p
2159                             q
2160                         }" $TMPE
2161             }
2162             cpu=$(check_native -march || check_native -mcpu)
2163         ;;
2164     esac
2165
2166     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2167 fi
2168
2169 # Deal with common $arch aliases
2170 case "$arch" in
2171     arm*)
2172         arch="arm"
2173     ;;
2174     mips|mipsel|IP*)
2175         arch="mips"
2176     ;;
2177     mips64*)
2178         arch="mips"
2179         subarch="mips64"
2180     ;;
2181     parisc|hppa)
2182         arch="parisc"
2183     ;;
2184     parisc64|hppa64)
2185         arch="parisc"
2186         subarch="parisc64"
2187     ;;
2188     "Power Macintosh"|ppc|powerpc)
2189         arch="ppc"
2190     ;;
2191     ppc64|powerpc64)
2192         arch="ppc"
2193         subarch="ppc64"
2194     ;;
2195     s390|s390x)
2196         arch="s390"
2197     ;;
2198     sh4|sh)
2199         arch="sh4"
2200     ;;
2201     sun4u|sparc64)
2202         arch="sparc"
2203         subarch="sparc64"
2204     ;;
2205     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2206         arch="x86"
2207     ;;
2208 esac
2209
2210 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2211 enable $arch
2212
2213 # Add processor-specific flags
2214 if test "$cpu" = generic; then
2215     : do nothing
2216 elif enabled ppc; then
2217
2218     case $(tolower $cpu) in
2219         601|ppc601|powerpc601)
2220             cpuflags="-mcpu=601"
2221             disable altivec
2222         ;;
2223         603*|ppc603*|powerpc603*)
2224             cpuflags="-mcpu=603"
2225             disable altivec
2226         ;;
2227         604*|ppc604*|powerpc604*)
2228             cpuflags="-mcpu=604"
2229             disable altivec
2230         ;;
2231         g3|75*|ppc75*|powerpc75*)
2232             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2233             disable altivec
2234         ;;
2235         g4|745*|ppc745*|powerpc745*)
2236             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2237         ;;
2238         74*|ppc74*|powerpc74*)
2239             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2240         ;;
2241         g5|970|ppc970|powerpc970|power4*)
2242             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2243         ;;
2244         cell)
2245             cpuflags="-mcpu=cell"
2246             enable ldbrx
2247         ;;
2248         e500v2)
2249             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2250             disable altivec
2251         ;;
2252         e500)
2253             cpuflags="-mcpu=8540 -mhard-float"
2254             disable altivec
2255         ;;
2256     esac
2257
2258 elif enabled x86; then
2259
2260     case $cpu in
2261         i[345]86|pentium)
2262             cpuflags="-march=$cpu"
2263             disable mmx
2264         ;;
2265         # targets that do NOT support conditional mov (cmov)
2266         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2267             cpuflags="-march=$cpu"
2268             disable cmov
2269         ;;
2270         # targets that do support conditional mov (cmov)
2271         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2272             cpuflags="-march=$cpu"
2273             enable cmov
2274             enable fast_cmov
2275         ;;
2276         # targets that do support conditional mov but on which it's slow
2277         pentium4|pentium4m|prescott|nocona)
2278             cpuflags="-march=$cpu"
2279             enable cmov
2280             disable fast_cmov
2281         ;;
2282     esac
2283
2284 elif enabled sparc; then
2285
2286     case $cpu in
2287         niagara)
2288             cpuflags="-mcpu=$cpu"
2289             disable vis
2290         ;;
2291         sparc64)
2292             cpuflags="-mcpu=v9"
2293         ;;
2294     esac
2295
2296 elif enabled arm; then
2297
2298     case $cpu in
2299         armv*)
2300             cpuflags="-march=$cpu"
2301             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2302         ;;
2303         *)
2304             cpuflags="-mcpu=$cpu"
2305             case $cpu in
2306                 cortex-a*)                               subarch=armv7a  ;;
2307                 cortex-r*)                               subarch=armv7r  ;;
2308                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2309                 arm11*)                                  subarch=armv6   ;;
2310                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2311                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2312             esac
2313         ;;
2314     esac
2315
2316 elif enabled alpha; then
2317
2318     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2319
2320 elif enabled bfin; then
2321
2322     cpuflags="-mcpu=$cpu"
2323
2324 elif enabled mips; then
2325
2326     cpuflags="-march=$cpu"
2327
2328 elif enabled avr32; then
2329
2330     case $cpu in
2331         ap7[02]0[0-2])
2332             subarch="avr32_ap"
2333             cpuflags="-mpart=$cpu"
2334         ;;
2335         ap)
2336             subarch="avr32_ap"
2337             cpuflags="-march=$cpu"
2338         ;;
2339         uc3[ab]*)
2340             subarch="avr32_uc"
2341             cpuflags="-mcpu=$cpu"
2342         ;;
2343         uc)
2344             subarch="avr32_uc"
2345             cpuflags="-march=$cpu"
2346         ;;
2347     esac
2348
2349 fi
2350
2351 add_cflags $cpuflags
2352 add_asflags $cpuflags
2353
2354 # compiler sanity check
2355 check_exec <<EOF
2356 int main(void){ return 0; }
2357 EOF
2358 if test "$?" != 0; then
2359     echo "$cc is unable to create an executable file."
2360     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2361         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2362         echo "Only do this if you know what cross compiling means."
2363     fi
2364     die "C compiler test failed."
2365 fi
2366
2367 add_cppflags -D_ISOC99_SOURCE
2368 check_cflags -std=c99
2369 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2370 #include <stdlib.h>
2371 EOF
2372 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2373 #include <stdlib.h>
2374 EOF
2375
2376 check_host_cflags -std=c99
2377 check_host_cflags -Wall
2378
2379 case "$arch" in
2380     alpha|ia64|mips|parisc|sparc)
2381         spic=$shared
2382     ;;
2383     x86)
2384         subarch="x86_32"
2385         check_cc <<EOF && subarch="x86_64"
2386         int test[(int)sizeof(char*) - 7];
2387 EOF
2388         if test "$subarch" = "x86_64"; then
2389             spic=$shared
2390         fi
2391     ;;
2392 esac
2393
2394 enable $subarch
2395 enabled spic && enable pic
2396
2397 # OS specific
2398 case $target_os in
2399     haiku)
2400         prefix_default="/boot/common"
2401         network_extralibs="-lnetwork"
2402         host_libs=
2403         ;;
2404     sunos)
2405         FFSERVERLDFLAGS=""
2406         SHFLAGS='-shared -Wl,-h,$$(@F)'
2407         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2408         network_extralibs="-lsocket -lnsl"
2409         add_cppflags -D__EXTENSIONS__
2410         nm_opts='-P -g'
2411         ;;
2412     netbsd)
2413         disable symver
2414         oss_indev_extralibs="-lossaudio"
2415         oss_outdev_extralibs="-lossaudio"
2416         ;;
2417     openbsd)
2418         enable malloc_aligned
2419         # On OpenBSD 4.5. the compiler does not use PIC unless
2420         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2421         # however the generated executable will not do anything
2422         # (simply quits with exit-code 1, no crash, no output).
2423         # Thus explicitly enable PIC here.
2424         enable pic
2425         disable symver
2426         SHFLAGS='-shared'
2427         oss_indev_extralibs="-lossaudio"
2428         oss_outdev_extralibs="-lossaudio"
2429         ;;
2430     dragonfly)
2431         enable malloc_aligned
2432         disable symver
2433         ;;
2434     freebsd)
2435         enable malloc_aligned
2436         ;;
2437     bsd/os)
2438         add_extralibs -lpoll -lgnugetopt
2439         strip="strip -d"
2440         ;;
2441     darwin)
2442         enable malloc_aligned
2443         gas="gas-preprocessor.pl $cc"
2444         enabled ppc && add_asflags -force_cpusubtype_ALL
2445         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2446         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2447         strip="${strip} -x"
2448         add_ldflags -Wl,-dynamic,-search_paths_first
2449         SLIBSUF=".dylib"
2450         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2451         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2452         FFSERVERLDFLAGS=-Wl,-bind_at_load
2453         objformat="macho"
2454         enabled x86_64 && objformat="macho64"
2455         enabled_any pic shared ||
2456             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2457         ;;
2458     mingw32*)
2459         if test $target_os = "mingw32ce"; then
2460             disable network
2461         else
2462             target_os=mingw32
2463         fi
2464         LIBTARGET=i386
2465         if enabled x86_64; then
2466             enable malloc_aligned
2467             LIBTARGET=x64
2468         elif enabled arm; then
2469             LIBTARGET=arm-wince
2470         fi
2471         shlibdir_default="$bindir_default"
2472         SLIBPREF=""
2473         SLIBSUF=".dll"
2474         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2475         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2476         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2477         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2478             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2479             install -d "$(LIBDIR)"; \
2480             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2481         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2482         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'
2483         objformat="win32"
2484         enable dos_paths
2485         check_cflags -fno-common
2486         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2487                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2488                 die "ERROR: MinGW runtime version must be >= 3.15."
2489         add_cppflags -U__STRICT_ANSI__
2490         ;;
2491     cygwin*)
2492         target_os=cygwin
2493         shlibdir_default="$bindir_default"
2494         SLIBPREF="cyg"
2495         SLIBSUF=".dll"
2496         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2497         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2498         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2499         objformat="win32"
2500         enable dos_paths
2501         check_cflags -fno-common
2502         add_cppflags -U__STRICT_ANSI__
2503         ;;
2504     *-dos|freedos|opendos)
2505         network_extralibs="-lsocket"
2506         objformat="coff"
2507         enable dos_paths
2508         add_cppflags -U__STRICT_ANSI__
2509         ;;
2510     linux)
2511         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2512         enable dv1394
2513         ;;
2514     irix*)
2515         target_os=irix
2516         ranlib="echo ignoring ranlib"
2517         ;;
2518     os/2*)
2519         strip="lxlite -CS"
2520         ln_s="cp -f"
2521         objformat="aout"
2522         add_cppflags -D_GNU_SOURCE
2523         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2524         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2525         FFSERVERLDFLAGS=""
2526         LIBSUF="_s.a"
2527         SLIBPREF=""
2528         SLIBSUF=".dll"
2529         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2530         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2531         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2532           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2533           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2534           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2535           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2536           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2537         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2538           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2539         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2540         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2541         enable dos_paths
2542         ;;
2543     gnu/kfreebsd)
2544         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2545         ;;
2546     gnu)
2547         ;;
2548     qnx)
2549         add_cppflags -D_QNX_SOURCE
2550         network_extralibs="-lsocket"
2551         ;;
2552     symbian)
2553         SLIBSUF=".dll"
2554         enable dos_paths
2555         add_cflags --include=$sysinclude/gcce/gcce.h
2556         ;;
2557     none)
2558         ;;
2559     *)
2560         die "Unknown OS '$target_os'."
2561         ;;
2562 esac
2563
2564 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2565
2566 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2567
2568 set_default $PATHS_LIST
2569
2570 # we need to build at least one lib type
2571 if ! enabled_any static shared; then
2572     cat <<EOF
2573 At least one library type must be built.
2574 Specify --enable-static to build the static libraries or --enable-shared to
2575 build the shared libraries as well. To only build the shared libraries specify
2576 --disable-static in addition to --enable-shared.
2577 EOF
2578     exit 1;
2579 fi
2580
2581 disabled static && LIBNAME=""
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     # We have to check if pld is a nop and disable it.
2665     check_asm pld '"pld [r0]"'
2666
2667     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2668     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2669     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2670     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2671     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2672     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2673     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2674
2675     enabled_all armv6t2 shared !pic && enable_pic
2676
2677 elif enabled mips; then
2678
2679     check_asm loongson '"dmult.g $1, $2, $3"'
2680     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2681
2682 elif enabled ppc; then
2683
2684     enable local_aligned_8 local_aligned_16
2685
2686     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2687     check_asm ibm_asm   '"add 0, 0, 0"'
2688     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2689     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2690
2691     # AltiVec flags: The FSF version of GCC differs from the Apple version
2692     if enabled altivec; then
2693         nogas=warn
2694         check_cflags -maltivec -mabi=altivec &&
2695         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2696         check_cflags -faltivec
2697
2698         # check if our compiler supports Motorola AltiVec C API
2699         check_cc <<EOF || disable altivec
2700 $inc_altivec_h
2701 int main(void) {
2702     vector signed int v1, v2, v3;
2703     v1 = vec_add(v2,v3);
2704     return 0;
2705 }
2706 EOF
2707
2708         # check if our compiler supports braces for vector declarations
2709         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2710 $inc_altivec_h
2711 int main (void) { (vector int) {1}; return 0; }
2712 EOF
2713     fi
2714
2715 elif enabled sparc; then
2716
2717     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2718         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2719
2720 elif enabled x86; then
2721
2722     enable local_aligned_8 local_aligned_16
2723
2724     # check whether EBP is available on x86
2725     # As 'i' is stored on the stack, this program will crash
2726     # if the base pointer is used to access it because the
2727     # base pointer is cleared in the inline assembly code.
2728     check_exec_crash <<EOF && enable ebp_available
2729     volatile int i=0;
2730     __asm__ volatile (
2731         "xorl %%ebp, %%ebp"
2732     ::: "%ebp");
2733     return i;
2734 EOF
2735
2736     # check whether EBX is available on x86
2737     check_asm ebx_available '""::"b"(0)' &&
2738         check_asm ebx_available '"":::"%ebx"'
2739
2740     # check whether xmm clobbers are supported
2741     check_asm xmm_clobbers '"":::"%xmm0"'
2742
2743     # check whether more than 10 operands are supported
2744     check_cc <<EOF && enable ten_operands
2745 int main(void) {
2746     int x=0;
2747     __asm__ volatile(
2748         ""
2749         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2750     );
2751     return 0;
2752 }
2753 EOF
2754
2755     # check whether binutils is new enough to compile SSSE3/MMX2
2756     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2757     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2758
2759     check_asm bswap '"bswap %%eax" ::: "%eax"'
2760
2761     if ! disabled_any asm mmx yasm; then
2762         if check_cmd $yasmexe --version; then
2763             enabled x86_64 && yasm_extra="-m amd64"
2764             yasm_debug="-g dwarf2"
2765         elif check_cmd nasm -v; then
2766             yasmexe=nasm
2767             yasm_debug="-g -F dwarf"
2768             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2769         fi
2770
2771         YASMFLAGS="-f $objformat $yasm_extra"
2772         enabled pic               && append YASMFLAGS "-DPIC"
2773         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2774         case "$objformat" in
2775             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2776         esac
2777
2778         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2779             die "yasm not found, use --disable-yasm for a crippled build"
2780         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2781     fi
2782
2783     case "$cpu" in
2784         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2785             disable fast_clz
2786         ;;
2787     esac
2788
2789 fi
2790
2791 if enabled asm; then
2792     as=${gas:=$as}
2793     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2794         $nogas "GNU assembler not found, install gas-preprocessor"
2795 fi
2796
2797 check_ldflags -Wl,--as-needed
2798
2799 if check_func dlopen; then
2800     ldl=
2801 elif check_func dlopen -ldl; then
2802     ldl=-ldl
2803 fi
2804
2805 if enabled network; then
2806     check_type "sys/types.h sys/socket.h" socklen_t
2807     check_type netdb.h "struct addrinfo"
2808     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2809     check_type netinet/in.h "struct sockaddr_in6"
2810     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2811     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2812     # Prefer arpa/inet.h over winsock2
2813     if check_header arpa/inet.h ; then
2814         check_func closesocket
2815     elif check_header winsock2.h ; then
2816         check_func_headers winsock2.h closesocket -lws2 && \
2817             network_extralibs="-lws2" || \
2818         { check_func_headers winsock2.h closesocket -lws2_32 && \
2819             network_extralibs="-lws2_32"; }
2820         check_type ws2tcpip.h socklen_t
2821         check_type ws2tcpip.h "struct addrinfo"
2822         check_type ws2tcpip.h "struct ipv6_mreq"
2823         check_type ws2tcpip.h "struct sockaddr_in6"
2824         check_type ws2tcpip.h "struct sockaddr_storage"
2825         check_struct winsock2.h "struct sockaddr" sa_len
2826     else
2827         disable network
2828     fi
2829 fi
2830
2831 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2832 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2833
2834 check_func  fcntl
2835 check_func  fork
2836 check_func  getaddrinfo $network_extralibs
2837 check_func  gethrtime
2838 check_func  getrusage
2839 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2840 check_func  inet_aton $network_extralibs
2841 check_func  isatty
2842 check_func  localtime_r
2843 check_func  ${malloc_prefix}memalign            && enable memalign
2844 check_func  mkstemp
2845 check_func  mmap
2846 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2847 check_func  setrlimit
2848 check_func  strerror_r
2849 check_func  strtok_r
2850 check_func_headers conio.h kbhit
2851 check_func_headers io.h setmode
2852 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2853 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2854 check_func_headers windows.h GetProcessTimes
2855 check_func_headers windows.h MapViewOfFile
2856 check_func_headers windows.h VirtualAlloc
2857
2858 check_header dlfcn.h
2859 check_header dxva2api.h
2860 check_header libcrystalhd/libcrystalhd_if.h
2861 check_header malloc.h
2862 check_header poll.h
2863 check_header sys/mman.h
2864 check_header sys/resource.h
2865 check_header sys/select.h
2866 check_header termios.h
2867 check_header vdpau/vdpau.h
2868 check_header vdpau/vdpau_x11.h
2869 check_header X11/extensions/XvMClib.h
2870
2871 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2872
2873 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2874 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2875
2876 # check for some common methods of building with pthread support
2877 # do this before the optional library checks as some of them require pthreads
2878 if ! disabled pthreads && ! enabled w32threads; then
2879     enable pthreads
2880     if check_func pthread_create; then
2881         :
2882     elif check_func pthread_create -pthread; then
2883         add_cflags -pthread
2884         add_extralibs -pthread
2885     elif check_func pthread_create -pthreads; then
2886         add_cflags -pthreads
2887         add_extralibs -pthreads
2888     elif check_func pthread_create -lpthreadGC2; then
2889         add_extralibs -lpthreadGC2
2890     elif ! check_lib pthread.h pthread_create -lpthread; then
2891         disable pthreads
2892     fi
2893 fi
2894
2895 for thread in $THREADS_LIST; do
2896     if enabled $thread; then
2897         test -n "$thread_type" &&
2898             die "ERROR: Only one thread type must be selected." ||
2899             thread_type="$thread"
2900     fi
2901 done
2902
2903 check_lib math.h sin -lm && LIBM="-lm"
2904 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2905 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2906
2907 check_mathfunc exp2
2908 check_mathfunc exp2f
2909 check_mathfunc llrint
2910 check_mathfunc llrintf
2911 check_mathfunc log2
2912 check_mathfunc log2f
2913 check_mathfunc lrint
2914 check_mathfunc lrintf
2915 check_mathfunc round
2916 check_mathfunc roundf
2917 check_mathfunc trunc
2918 check_mathfunc truncf
2919
2920 # these are off by default, so fail if requested and not available
2921 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2922 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2923 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2924 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2925 enabled libdirac   && require_pkg_config dirac                          \
2926     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2927     "dirac_decoder_init dirac_encoder_init"
2928 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2929 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2930 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2931 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2932 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2933 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2934 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2935 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2936 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2937 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2938 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2939 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2940 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2941 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2942 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2943 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2944 enabled libvpx     && {
2945     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2946                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2947     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2948                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2949 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2950                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2951                         die "ERROR: libx264 version must be >= 0.115."; }
2952 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2953 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2954 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2955                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2956                         die "ERROR: openal not found"; } &&
2957                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2958                         die "ERROR: openal version must be 1.1 or compatible"; }
2959 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2960
2961 SDL_CONFIG="${cross_prefix}sdl-config"
2962 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2963     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2964     enable sdl &&
2965     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2966 else
2967   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2968     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2969     sdl_libs=$("${SDL_CONFIG}" --libs)
2970     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2971     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2972     enable sdl &&
2973     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2974   fi
2975 fi
2976 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2977
2978 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2979
2980 check_header linux/fb.h
2981 check_header linux/videodev.h
2982 check_header linux/videodev2.h
2983 check_header sys/videoio.h
2984
2985 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2986 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2987 # w32api 3.12 had it defined wrong
2988 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2989
2990 check_type "dshow.h" IBaseFilter
2991
2992 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2993 { check_header dev/bktr/ioctl_meteor.h &&
2994   check_header dev/bktr/ioctl_bt848.h; } ||
2995 { check_header machine/ioctl_meteor.h &&
2996   check_header machine/ioctl_bt848.h; } ||
2997 { check_header dev/video/meteor/ioctl_meteor.h &&
2998   check_header dev/video/bktr/ioctl_bt848.h; } ||
2999 check_header dev/ic/bt8xx.h
3000
3001 check_header sndio.h
3002 if check_struct sys/soundcard.h audio_buf_info bytes; then
3003     enable_safe sys/soundcard.h
3004 else
3005     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3006     #include <sys/soundcard.h>
3007     audio_buf_info abc;
3008 EOF
3009 fi
3010 check_header soundcard.h
3011
3012 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3013
3014 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3015
3016 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3017
3018 enabled x11grab                         &&
3019 check_header X11/Xlib.h                 &&
3020 check_header X11/extensions/XShm.h      &&
3021 check_header X11/extensions/Xfixes.h    &&
3022 check_func XOpenDisplay -lX11           &&
3023 check_func XShmCreateImage -lX11 -lXext &&
3024 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3025
3026 if ! disabled vaapi; then
3027     check_lib va/va.h vaInitialize -lva && {
3028         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3029         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3030     } || disable vaapi
3031 fi
3032
3033 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3034 check_cpp_condition \
3035     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3036     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3037       disable vdpau; }
3038 fi
3039
3040 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3041
3042 # add some useful compiler flags if supported
3043 check_cflags -Wdeclaration-after-statement
3044 check_cflags -Wall
3045 check_cflags -Wno-parentheses
3046 check_cflags -Wno-switch
3047 check_cflags -Wno-format-zero-length
3048 check_cflags -Wdisabled-optimization
3049 check_cflags -Wpointer-arith
3050 check_cflags -Wredundant-decls
3051 check_cflags -Wno-pointer-sign
3052 check_cflags -Wcast-qual
3053 check_cflags -Wwrite-strings
3054 check_cflags -Wtype-limits
3055 check_cflags -Wundef
3056 check_cflags -Wmissing-prototypes
3057 check_cflags -Wno-pointer-to-int-cast
3058 enabled extra_warnings && check_cflags -Winline
3059
3060 # add some linker flags
3061 check_ldflags -Wl,--warn-common
3062 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
3063 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3064
3065 echo "X{};" > $TMPV
3066 if test_ldflags -Wl,--version-script,$TMPV; then
3067     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3068     check_cc <<EOF && enable symver_asm_label
3069 void ff_foo(void) __asm__ ("av_foo@VERSION");
3070 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3071 EOF
3072     check_cc <<EOF && enable symver_gnu_asm
3073 __asm__(".symver ff_foo,av_foo@VERSION");
3074 void ff_foo(void) {}
3075 EOF
3076 fi
3077
3078 if [ -n "$optflags" ]; then
3079     add_cflags $optflags
3080 elif enabled small; then
3081     add_cflags $size_cflags
3082 elif enabled optimizations; then
3083     add_cflags $speed_cflags
3084 else
3085     add_cflags $noopt_cflags
3086 fi
3087 check_cflags -fno-math-errno
3088 check_cflags -fno-signed-zeros
3089
3090 if enabled icc; then
3091     # Just warnings, no remarks
3092     check_cflags -w1
3093     # -wd: Disable following warnings
3094     # 144, 167, 556: -Wno-pointer-sign
3095     # 1292: attribute "foo" ignored
3096     # 10006: ignoring unknown option -fno-signed-zeros
3097     # 10148: ignoring unknown option -Wno-parentheses
3098     # 10156: ignoring option '-W'; no argument required
3099     check_cflags -wd144,167,556,1292,10006,10148,10156
3100     # 11030: Warning unknown option --as-needed
3101     # 10156: ignoring option '-export'; no argument required
3102     check_ldflags -wd10156,11030
3103     # Allow to compile with optimizations
3104     check_ldflags -march=$cpu
3105     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3106     enable ebp_available
3107     if enabled x86_32; then
3108         test ${icc_version%%.*} -ge 11 && \
3109             check_cflags -falign-stack=maintain-16-byte || \
3110             disable aligned_stack
3111     fi
3112 elif enabled ccc; then
3113     # disable some annoying warnings
3114     add_cflags -msg_disable cvtu32to64
3115     add_cflags -msg_disable embedcomment
3116     add_cflags -msg_disable needconstext
3117     add_cflags -msg_disable nomainieee
3118     add_cflags -msg_disable ptrmismatch1
3119     add_cflags -msg_disable unreachcode
3120 elif enabled gcc; then
3121     check_cflags -fno-tree-vectorize
3122     check_cflags -Werror=implicit-function-declaration
3123     check_cflags -Werror=missing-prototypes
3124 elif enabled llvm_gcc; then
3125     check_cflags -mllvm -stack-alignment=16
3126 elif enabled clang; then
3127     check_cflags -mllvm -stack-alignment=16
3128     check_cflags -Qunused-arguments
3129 elif enabled armcc; then
3130     # 2523: use of inline assembler is deprecated
3131     add_cflags -W${armcc_opt},--diag_suppress=2523
3132     add_cflags -W${armcc_opt},--diag_suppress=1207
3133     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3134     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3135     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3136     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3137 elif enabled tms470; then
3138     add_cflags -pds=824 -pds=837
3139 elif enabled pathscale; then
3140     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3141 fi
3142
3143 enabled_any $THREADS_LIST      && enable threads
3144
3145 check_deps $CONFIG_LIST       \
3146            $CONFIG_EXTRA      \
3147            $HAVE_LIST         \
3148            $DECODER_LIST      \
3149            $ENCODER_LIST      \
3150            $HWACCEL_LIST      \
3151            $PARSER_LIST       \
3152            $BSF_LIST          \
3153            $DEMUXER_LIST      \
3154            $MUXER_LIST        \
3155            $FILTER_LIST       \
3156            $INDEV_LIST        \
3157            $OUTDEV_LIST       \
3158            $PROTOCOL_LIST     \
3159            $ACODEC_TESTS      \
3160            $VCODEC_TESTS      \
3161            $LAVF_TESTS        \
3162            $LAVFI_TESTS       \
3163            $SEEK_TESTS        \
3164
3165 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3166
3167 if test $target_os == "haiku"; then
3168     disable memalign
3169     disable posix_memalign
3170 fi
3171
3172 ! enabled_any memalign posix_memalign malloc_aligned &&
3173     enabled_any $need_memalign && enable memalign_hack
3174
3175 echo "install prefix            $prefix"
3176 echo "source path               $source_path"
3177 echo "C compiler                $cc"
3178 echo "ARCH                      $arch ($cpu)"
3179 if test "$build_suffix" != ""; then
3180     echo "build suffix              $build_suffix"
3181 fi
3182 if test "$extra_version" != ""; then
3183     echo "version string suffix     $extra_version"
3184 fi
3185 echo "big-endian                ${bigendian-no}"
3186 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3187 if enabled x86; then
3188     echo "${yasmexe}                      ${yasm-no}"
3189     echo "MMX enabled               ${mmx-no}"
3190     echo "MMX2 enabled              ${mmx2-no}"
3191     echo "3DNow! enabled            ${amd3dnow-no}"
3192     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3193     echo "SSE enabled               ${sse-no}"
3194     echo "SSSE3 enabled             ${ssse3-no}"
3195     echo "AVX enabled               ${avx-no}"
3196     echo "CMOV enabled              ${cmov-no}"
3197     echo "CMOV is fast              ${fast_cmov-no}"
3198     echo "EBX available             ${ebx_available-no}"
3199     echo "EBP available             ${ebp_available-no}"
3200     echo "10 operands supported     ${ten_operands-no}"
3201 fi
3202 if enabled arm; then
3203     echo "ARMv5TE enabled           ${armv5te-no}"
3204     echo "ARMv6 enabled             ${armv6-no}"
3205     echo "ARMv6T2 enabled           ${armv6t2-no}"
3206     echo "ARM VFP enabled           ${armvfp-no}"
3207     echo "IWMMXT enabled            ${iwmmxt-no}"
3208     echo "NEON enabled              ${neon-no}"
3209 fi
3210 if enabled mips; then
3211     echo "MMI enabled               ${mmi-no}"
3212 fi
3213 if enabled ppc; then
3214     echo "AltiVec enabled           ${altivec-no}"
3215     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3216     echo "dcbzl available           ${dcbzl-no}"
3217 fi
3218 if enabled sparc; then
3219     echo "VIS enabled               ${vis-no}"
3220 fi
3221 echo "debug symbols             ${debug-no}"
3222 echo "strip symbols             ${stripping-no}"
3223 echo "optimize for size         ${small-no}"
3224 echo "optimizations             ${optimizations-no}"
3225 echo "static                    ${static-no}"
3226 echo "shared                    ${shared-no}"
3227 echo "postprocessing support    ${postproc-no}"
3228 echo "new filter support        ${avfilter-no}"
3229 echo "network support           ${network-no}"
3230 echo "threading support         ${thread_type-no}"
3231 echo "SDL support               ${sdl-no}"
3232 echo "Sun medialib support      ${mlib-no}"
3233 echo "AVISynth enabled          ${avisynth-no}"
3234 echo "libcelt enabled           ${libcelt-no}"
3235 echo "frei0r enabled            ${frei0r-no}"
3236 echo "libdc1394 support         ${libdc1394-no}"
3237 echo "libdirac enabled          ${libdirac-no}"
3238 echo "libfaac enabled           ${libfaac-no}"
3239 echo "libgsm enabled            ${libgsm-no}"
3240 echo "libmp3lame enabled        ${libmp3lame-no}"
3241 echo "libnut enabled            ${libnut-no}"
3242 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3243 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3244 echo "libopencv support         ${libopencv-no}"
3245 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3246 echo "librtmp enabled           ${librtmp-no}"
3247 echo "libschroedinger enabled   ${libschroedinger-no}"
3248 echo "libspeex enabled          ${libspeex-no}"
3249 echo "libtheora enabled         ${libtheora-no}"
3250 echo "libva enabled             ${vaapi-no}"
3251 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3252 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3253 echo "libvorbis enabled         ${libvorbis-no}"
3254 echo "libvpx enabled            ${libvpx-no}"
3255 echo "libx264 enabled           ${libx264-no}"
3256 echo "libxavs enabled           ${libxavs-no}"
3257 echo "libxvid enabled           ${libxvid-no}"
3258 echo "openal enabled            ${openal-no}"
3259 echo "zlib enabled              ${zlib-no}"
3260 echo "bzlib enabled             ${bzlib-no}"
3261 echo
3262
3263 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3264     echo "Enabled ${type}s:"
3265     eval list=\$$(toupper $type)_LIST
3266     print_enabled '_*' $list | sort | pr -r -3 -t
3267     echo
3268 done
3269
3270 license="LGPL version 2.1 or later"
3271 if enabled nonfree; then
3272     license="nonfree and unredistributable"
3273 elif enabled gplv3; then
3274     license="GPL version 3 or later"
3275 elif enabled lgplv3; then
3276     license="LGPL version 3 or later"
3277 elif enabled gpl; then
3278     license="GPL version 2 or later"
3279 fi
3280
3281 echo "License: $license"
3282
3283 echo "Creating config.mak and config.h..."
3284
3285 # build tree in object directory if source path is different from current one
3286 if enabled source_path_used; then
3287     DIRS="
3288         doc
3289         libavcodec
3290         libavcodec/$arch
3291         libavdevice
3292         libavfilter
3293         libavfilter/$arch
3294         libavfilter/libmpcodecs
3295         libavfilter/libmpcodecs/libvo
3296         libavformat
3297         libavutil
3298         libavutil/$arch
3299         libpostproc
3300         libswscale
3301         libswscale/$arch
3302         tests
3303         tests/fate
3304         tools
3305     "
3306     FILES="
3307         Makefile
3308         common.mak
3309         subdir.mak
3310         doc/Makefile
3311         doc/texi2pod.pl
3312         libavcodec/Makefile
3313         libavcodec/${arch}/Makefile
3314         libavdevice/Makefile
3315         libavfilter/Makefile
3316         libavfilter/${arch}/Makefile
3317         libavformat/Makefile
3318         libavutil/Makefile
3319         libpostproc/Makefile
3320         libswscale/Makefile
3321         tests/Makefile
3322         tests/fate.mak
3323         tests/fate2.mak
3324         tests/fate/aac.mak
3325         tests/fate/als.mak
3326         tests/fate/fft.mak
3327         tests/fate/h264.mak
3328         tests/fate/mp3.mak
3329         tests/fate/vorbis.mak
3330         tests/fate/vp8.mak
3331     "
3332     map 'mkdir -p $v' $DIRS;
3333     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3334 fi
3335
3336 enabled stripping || strip="echo skipping strip"
3337
3338 config_files="$TMPH config.mak"
3339
3340 cat > config.mak <<EOF
3341 # Automatically generated by configure - do not modify!
3342 ifndef FFMPEG_CONFIG_MAK
3343 FFMPEG_CONFIG_MAK=1
3344 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3345 prefix=$prefix
3346 LIBDIR=\$(DESTDIR)$libdir
3347 SHLIBDIR=\$(DESTDIR)$shlibdir
3348 INCDIR=\$(DESTDIR)$incdir
3349 BINDIR=\$(DESTDIR)$bindir
3350 DATADIR=\$(DESTDIR)$datadir
3351 MANDIR=\$(DESTDIR)$mandir
3352 SRC_PATH=$source_path
3353 CC_IDENT=$cc_ident
3354 ARCH=$arch
3355 CC=$cc
3356 AS=$as
3357 LD=$ld
3358 DEPCC=$dep_cc
3359 YASM=$yasmexe
3360 YASMDEP=$yasmexe
3361 AR=$ar
3362 RANLIB=$ranlib
3363 CP=cp -p
3364 LN_S=$ln_s
3365 STRIP=$strip
3366 CPPFLAGS=$CPPFLAGS
3367 CFLAGS=$CFLAGS
3368 ASFLAGS=$ASFLAGS
3369 AS_O=$CC_O
3370 CC_O=$CC_O
3371 LDFLAGS=$LDFLAGS
3372 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3373 SHFLAGS=$SHFLAGS
3374 YASMFLAGS=$YASMFLAGS
3375 BUILDSUF=$build_suffix
3376 FULLNAME=$FULLNAME
3377 LIBPREF=$LIBPREF
3378 LIBSUF=$LIBSUF
3379 LIBNAME=$LIBNAME
3380 SLIBPREF=$SLIBPREF
3381 SLIBSUF=$SLIBSUF
3382 EXESUF=$EXESUF
3383 EXTRA_VERSION=$extra_version
3384 DEPFLAGS=$DEPFLAGS
3385 CCDEP=$CCDEP
3386 ASDEP=$ASDEP
3387 CC_DEPFLAGS=$CC_DEPFLAGS
3388 AS_DEPFLAGS=$AS_DEPFLAGS
3389 HOSTCC=$host_cc
3390 HOSTCFLAGS=$host_cflags
3391 HOSTEXESUF=$HOSTEXESUF
3392 HOSTLDFLAGS=$host_ldflags
3393 HOSTLIBS=$host_libs
3394 TARGET_EXEC=$target_exec
3395 TARGET_PATH=$target_path
3396 SDL_LIBS=$sdl_libs
3397 SDL_CFLAGS=$sdl_cflags
3398 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3399 EXTRALIBS=$extralibs
3400 INSTALL=$install
3401 LIBTARGET=${LIBTARGET}
3402 SLIBNAME=${SLIBNAME}
3403 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3404 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3405 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3406 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3407 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3408 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3409 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3410 EOF
3411
3412 get_version(){
3413     name=$1
3414     file=$source_path/$2
3415     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3416     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3417     lcname=$(tolower $name)
3418     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3419     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3420 }
3421
3422 get_version LIBSWSCALE  libswscale/swscale.h
3423 get_version LIBPOSTPROC libpostproc/postprocess.h
3424 get_version LIBAVCODEC  libavcodec/version.h
3425 get_version LIBAVDEVICE libavdevice/avdevice.h
3426 get_version LIBAVFORMAT libavformat/version.h
3427 get_version LIBAVUTIL   libavutil/avutil.h
3428 get_version LIBAVFILTER libavfilter/avfilter.h
3429
3430 cat > $TMPH <<EOF
3431 /* Automatically generated by configure - do not modify! */
3432 #ifndef FFMPEG_CONFIG_H
3433 #define FFMPEG_CONFIG_H
3434 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3435 #define FFMPEG_LICENSE "$(c_escape $license)"
3436 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3437 #define CC_TYPE "$cc_type"
3438 #define CC_VERSION $cc_version
3439 #define restrict $_restrict
3440 #define EXTERN_PREFIX "${extern_prefix}"
3441 #define EXTERN_ASM ${extern_prefix}
3442 #define SLIBSUF "$SLIBSUF"
3443 EOF
3444
3445 test -n "$malloc_prefix" &&
3446     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3447
3448 if enabled small || disabled optimizations; then
3449     echo "#undef  av_always_inline"  >> $TMPH
3450     if enabled small; then
3451         echo "#define av_always_inline inline"  >> $TMPH
3452     else
3453         echo "#define av_always_inline av_unused"  >> $TMPH
3454     fi
3455 fi
3456
3457 if enabled yasm; then
3458     append config_files $TMPASM
3459     printf '' >$TMPASM
3460 fi
3461
3462 print_config ARCH_   "$config_files" $ARCH_LIST
3463 print_config HAVE_   "$config_files" $HAVE_LIST
3464 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3465                                      $CONFIG_EXTRA      \
3466                                      $DECODER_LIST      \
3467                                      $ENCODER_LIST      \
3468                                      $HWACCEL_LIST      \
3469                                      $PARSER_LIST       \
3470                                      $BSF_LIST          \
3471                                      $DEMUXER_LIST      \
3472                                      $MUXER_LIST        \
3473                                      $FILTER_LIST       \
3474                                      $PROTOCOL_LIST     \
3475                                      $INDEV_LIST        \
3476                                      $OUTDEV_LIST       \
3477
3478 cat >>config.mak <<EOF
3479 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3480 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3481 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3482 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3483 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3484 EOF
3485
3486 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3487 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3488
3489 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3490 cp_if_changed $TMPH config.h
3491 touch .config
3492
3493 enabled yasm && cp_if_changed $TMPASM config.asm
3494
3495 cat > $TMPH <<EOF
3496 /* Generated by ffconf */
3497 #ifndef AVUTIL_AVCONFIG_H
3498 #define AVUTIL_AVCONFIG_H
3499 EOF
3500
3501 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3502
3503 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3504
3505 cp_if_changed $TMPH libavutil/avconfig.h
3506
3507 test -n "$WARNINGS" && printf "\n$WARNINGS"
3508
3509 # build pkg-config files
3510
3511 pkgconfig_generate(){
3512 name=$1
3513 shortname=${name#lib}${build_suffix}
3514 comment=$2
3515 version=$3
3516 libs=$4
3517 requires=$5
3518 enabled ${name#lib} || return 0
3519 cat <<EOF > $name/$name.pc
3520 prefix=$prefix
3521 exec_prefix=\${prefix}
3522 libdir=$libdir
3523 includedir=$incdir
3524
3525 Name: $name
3526 Description: $comment
3527 Version: $version
3528 Requires: $(enabled shared || echo $requires)
3529 Requires.private: $(enabled shared && echo $requires)
3530 Conflicts:
3531 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3532 Libs.private: $(enabled shared && echo $libs)
3533 Cflags: -I\${includedir}
3534 EOF
3535 cat <<EOF > $name/$name-uninstalled.pc
3536 prefix=
3537 exec_prefix=
3538 libdir=\${pcfiledir}
3539 includedir=${source_path}
3540
3541 Name: $name
3542 Description: $comment
3543 Version: $version
3544 Requires: $requires
3545 Conflicts:
3546 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3547 Cflags: -I\${includedir}
3548 EOF
3549 }
3550
3551 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3552 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3553 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3554 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3555 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3556 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3557 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"