git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-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   --enable-postproc        enable GPLed postprocessing support [no]
  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   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  98   --enable-gray            enable full grayscale support (slower color)
  99   --disable-swscale-alpha  disable alpha channel support in swscale
 100   --disable-fastdiv        disable table-based division
 101   --enable-small           optimize for size instead of speed
 102   --disable-aandct         disable AAN DCT code
 103   --disable-dct            disable DCT code
 104   --disable-fft            disable FFT code
 105   --disable-golomb         disable Golomb code
 106   --disable-huffman        disable Huffman code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --disable-vaapi          disable VAAPI code
 111   --disable-vdpau          disable VDPAU code
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-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-mlib            enable Sun medialib [no]
 192   --enable-zlib            enable zlib [autodetect]
 193
 194 Advanced options (experts only):
 195   --source-path=PATH       path to source code [$source_path]
 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 [$arch]
 218   --cpu=CPU                select the minimum required CPU (affects
 219                            instruction selection, may crash on older CPUs)
 220   --disable-asm            disable all assembler optimizations
 221   --disable-altivec        disable AltiVec optimizations
 222   --disable-amd3dnow       disable 3DNow! optimizations
 223   --disable-amd3dnowext    disable 3DNow! extended optimizations
 224   --disable-mmx            disable MMX optimizations
 225   --disable-mmx2           disable MMX2 optimizations
 226   --disable-sse            disable SSE optimizations
 227   --disable-ssse3          disable SSSE3 optimizations
 228   --disable-avx            disable AVX optimizations
 229   --disable-armv5te        disable armv5te optimizations
 230   --disable-armv6          disable armv6 optimizations
 231   --disable-armv6t2        disable armv6t2 optimizations
 232   --disable-armvfp         disable ARM VFP optimizations
 233   --disable-iwmmxt         disable iwmmxt optimizations
 234   --disable-mmi            disable MMI optimizations
 235   --disable-neon           disable neon optimizations
 236   --disable-vis            disable VIS optimizations
 237   --disable-yasm           disable use of yasm assembler
 238   --enable-pic             build position-independent code
 239   --malloc-prefix=PFX      prefix malloc and related names with PFX
 240   --enable-sram            allow use of on-chip SRAM
 241   --disable-symver         disable symbol versioning
 242
 243 Developer options (useful when working on FFmpeg itself):
 244   --disable-debug          disable debugging symbols
 245   --enable-debug=LEVEL     set the debug level [$debuglevel]
 246   --disable-optimizations  disable compiler optimizations
 247   --enable-extra-warnings  enable more compiler warnings
 248   --disable-stripping      disable stripping of executables and shared libraries
 249   --samples=PATH           location of test samples for FATE, if not set use
 250                            \$FATE_SAMPLES at make invocation time.
 251
 252 NOTE: Object files are built at the place where configure is launched.
 253 EOF
 254   exit 0
 255 }
 256
 257 quotes='""'
 258
 259 log(){
 260     echo "$@" >> $logfile
 261 }
 262
 263 log_file(){
 264     log BEGIN $1
 265     pr -n -t $1 >> $logfile
 266     log END $1
 267 }
 268
 269 echolog(){
 270     log "$@"
 271     echo "$@"
 272 }
 273
 274 warn(){
 275     log "WARNING: $*"
 276     WARNINGS="${WARNINGS}WARNING: $*\n"
 277 }
 278
 279 die(){
 280     echolog "$@"
 281     cat <<EOF
 282
 283 If you think configure made a mistake, make sure you are using the latest
 284 version from Git.  If the latest version fails, report the problem to the
 285 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 286 EOF
 287     if disabled logging; then
 288         cat <<EOF
 289 Rerun configure with logging enabled (do not use --disable-logging), and
 290 include the log this produces with your report.
 291 EOF
 292     else
 293 cat <<EOF
 294 Include the log file "$logfile" produced by configure as this will help
 295 solving the problem.
 296 EOF
 297     fi
 298     exit 1
 299 }
 300
 301 # Avoid locale weirdness, besides we really just want to translate ASCII.
 302 toupper(){
 303     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 304 }
 305
 306 tolower(){
 307     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 308 }
 309
 310 c_escape(){
 311     echo "$*" | sed 's/["\\]/\\\0/g'
 312 }
 313
 314 sh_quote(){
 315     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 316     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 317     echo "$v"
 318 }
 319
 320 cleanws(){
 321     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 322 }
 323
 324 filter(){
 325     pat=$1
 326     shift
 327     for v; do
 328         eval "case $v in $pat) echo $v ;; esac"
 329     done
 330 }
 331
 332 filter_out(){
 333     pat=$1
 334     shift
 335     for v; do
 336         eval "case $v in $pat) ;; *) echo $v ;; esac"
 337     done
 338 }
 339
 340 map(){
 341     m=$1
 342     shift
 343     for v; do eval $m; done
 344 }
 345
 346 set_all(){
 347     value=$1
 348     shift
 349     for var in $*; do
 350         eval $var=$value
 351     done
 352 }
 353
 354 set_weak(){
 355     value=$1
 356     shift
 357     for var; do
 358         eval : \${$var:=$value}
 359     done
 360 }
 361
 362 set_safe(){
 363     var=$1
 364     shift
 365     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 366 }
 367
 368 get_safe(){
 369     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 370 }
 371
 372 pushvar(){
 373     for var in $*; do
 374         eval level=\${${var}_level:=0}
 375         eval ${var}_${level}="\$$var"
 376         eval ${var}_level=$(($level+1))
 377     done
 378 }
 379
 380 popvar(){
 381     for var in $*; do
 382         eval level=\${${var}_level:-0}
 383         test $level = 0 && continue
 384         eval level=$(($level-1))
 385         eval $var="\${${var}_${level}}"
 386         eval ${var}_level=$level
 387         eval unset ${var}_${level}
 388     done
 389 }
 390
 391 enable(){
 392     set_all yes $*
 393 }
 394
 395 disable(){
 396     set_all no $*
 397 }
 398
 399 enable_weak(){
 400     set_weak yes $*
 401 }
 402
 403 disable_weak(){
 404     set_weak no $*
 405 }
 406
 407 enable_safe(){
 408     for var; do
 409         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 410     done
 411 }
 412
 413 disable_safe(){
 414     for var; do
 415         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 416     done
 417 }
 418
 419 do_enable_deep(){
 420     for var; do
 421         enabled $var && continue
 422         eval sel="\$${var}_select"
 423         eval sgs="\$${var}_suggest"
 424         pushvar var sgs
 425         enable_deep $sel
 426         popvar sgs
 427         enable_deep_weak $sgs
 428         popvar var
 429     done
 430 }
 431
 432 enable_deep(){
 433     do_enable_deep $*
 434     enable $*
 435 }
 436
 437 enable_deep_weak(){
 438     do_enable_deep $*
 439     enable_weak $*
 440 }
 441
 442 enabled(){
 443     test "${1#!}" = "$1" && op== || op=!=
 444     eval test "x\$${1#!}" $op "xyes"
 445 }
 446
 447 disabled(){
 448     test "${1#!}" = "$1" && op== || op=!=
 449     eval test "x\$${1#!}" $op "xno"
 450 }
 451
 452 enabled_all(){
 453     for opt; do
 454         enabled $opt || return 1
 455     done
 456 }
 457
 458 disabled_all(){
 459     for opt; do
 460         disabled $opt || return 1
 461     done
 462 }
 463
 464 enabled_any(){
 465     for opt; do
 466         enabled $opt && return 0
 467     done
 468 }
 469
 470 disabled_any(){
 471     for opt; do
 472         disabled $opt && return 0
 473     done
 474     return 1
 475 }
 476
 477 set_default(){
 478     for opt; do
 479         eval : \${$opt:=\$${opt}_default}
 480     done
 481 }
 482
 483 is_in(){
 484     value=$1
 485     shift
 486     for var in $*; do
 487         [ $var = $value ] && return 0
 488     done
 489     return 1
 490 }
 491
 492 check_deps(){
 493     for cfg; do
 494         cfg="${cfg#!}"
 495         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 496         disabled ${cfg}_checking && continue
 497         enable ${cfg}_checking
 498
 499         eval dep_all="\$${cfg}_deps"
 500         eval dep_any="\$${cfg}_deps_any"
 501         eval dep_sel="\$${cfg}_select"
 502         eval dep_sgs="\$${cfg}_suggest"
 503         eval dep_ifa="\$${cfg}_if"
 504         eval dep_ifn="\$${cfg}_if_any"
 505
 506         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 507         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 508         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 509
 510         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 511         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 512         enabled_all  $dep_all || disable $cfg
 513         enabled_any  $dep_any || disable $cfg
 514         disabled_any $dep_sel && disable $cfg
 515
 516         if enabled $cfg; then
 517             eval dep_extralibs="\$${cfg}_extralibs"
 518             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 519             enable_deep $dep_sel
 520             enable_deep_weak $dep_sgs
 521         fi
 522
 523         disable ${cfg}_checking
 524     done
 525 }
 526
 527 print_config_h(){
 528     enabled $1 && v=1 || v=0
 529     echo "#define $2 $v"
 530 }
 531
 532 print_config_mak(){
 533     enabled $1 && v= || v=!
 534     echo "$v$2=yes"
 535 }
 536
 537 print_config_asm(){
 538     enabled $1 && echo "%define $2"
 539 }
 540
 541 print_config(){
 542     pfx=$1
 543     files=$2
 544     shift 2
 545     for cfg; do
 546         ucname="$(toupper $cfg)"
 547         for f in $files; do
 548             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 549         done
 550     done
 551 }
 552
 553 print_enabled(){
 554     test "$1" = -n && end=" " && shift || end="\n"
 555     suf=$1
 556     shift
 557     for v; do
 558         enabled $v && printf "%s$end" ${v%$suf};
 559     done
 560 }
 561
 562 append(){
 563     var=$1
 564     shift
 565     eval "$var=\"\$$var $*\""
 566 }
 567
 568 prepend(){
 569     var=$1
 570     shift
 571     eval "$var=\"$* \$$var\""
 572 }
 573
 574 add_cppflags(){
 575     append CPPFLAGS $($filter_cppflags "$@")
 576 }
 577
 578 add_cflags(){
 579     append CFLAGS $($filter_cflags "$@")
 580 }
 581
 582 add_asflags(){
 583     append ASFLAGS $($filter_asflags "$@")
 584 }
 585
 586 add_ldflags(){
 587     append LDFLAGS "$@"
 588 }
 589
 590 add_extralibs(){
 591     prepend extralibs "$@"
 592 }
 593
 594 check_cmd(){
 595     log "$@"
 596     "$@" >> $logfile 2>&1
 597 }
 598
 599 check_cc(){
 600     log check_cc "$@"
 601     cat > $TMPC
 602     log_file $TMPC
 603     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 604 }
 605
 606 check_cpp(){
 607     log check_cpp "$@"
 608     cat > $TMPC
 609     log_file $TMPC
 610     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 611 }
 612
 613 check_as(){
 614     log check_as "$@"
 615     cat > $TMPC
 616     log_file $TMPC
 617     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 618 }
 619
 620 check_asm(){
 621     log check_asm "$@"
 622     name="$1"
 623     code="$2"
 624     shift 2
 625     disable $name
 626     check_as "$@" <<EOF && enable $name
 627 void foo(void){ __asm__ volatile($code); }
 628 EOF
 629 }
 630
 631 check_yasm(){
 632     log check_yasm "$@"
 633     echo "$1" > $TMPS
 634     log_file $TMPS
 635     shift 1
 636     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 637 }
 638
 639 check_ld(){
 640     log check_ld "$@"
 641     flags=''
 642     libs=''
 643     for f; do
 644         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 645     done
 646     check_cc $($filter_cflags $flags) || return
 647     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 648 }
 649
 650 check_cppflags(){
 651     log check_cppflags "$@"
 652     set -- $($filter_cppflags "$@")
 653     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 654 int x;
 655 EOF
 656 }
 657
 658 check_cflags(){
 659     log check_cflags "$@"
 660     set -- $($filter_cflags "$@")
 661     check_cc "$@" <<EOF && append CFLAGS "$@"
 662 int x;
 663 EOF
 664 }
 665
 666 test_ldflags(){
 667     log test_ldflags "$@"
 668     check_ld "$@" <<EOF
 669 int main(void){ return 0; }
 670 EOF
 671 }
 672
 673 check_ldflags(){
 674     log check_ldflags "$@"
 675     test_ldflags "$@" && add_ldflags "$@"
 676 }
 677
 678 check_header(){
 679     log check_header "$@"
 680     header=$1
 681     shift
 682     disable_safe $header
 683     check_cpp "$@" <<EOF && enable_safe $header
 684 #include <$header>
 685 int x;
 686 EOF
 687 }
 688
 689 check_func(){
 690     log check_func "$@"
 691     func=$1
 692     shift
 693     disable $func
 694     check_ld "$@" <<EOF && enable $func
 695 extern int $func();
 696 int main(void){ $func(); }
 697 EOF
 698 }
 699
 700 check_mathfunc(){
 701     log check_mathfunc "$@"
 702     func=$1
 703     shift
 704     disable $func
 705     check_ld "$@" <<EOF && enable $func
 706 #include <math.h>
 707 float foo(float f) { return $func(f); }
 708 int main(void){ return 0; }
 709 EOF
 710 }
 711
 712 check_func_headers(){
 713     log check_func_headers "$@"
 714     headers=$1
 715     funcs=$2
 716     shift 2
 717     {
 718         for hdr in $headers; do
 719             echo "#include <$hdr>"
 720         done
 721         for func in $funcs; do
 722             echo "long check_$func(void) { return (long) $func; }"
 723         done
 724         echo "int main(void) { return 0; }"
 725     } | check_ld "$@" && enable $funcs && enable_safe $headers
 726 }
 727
 728 check_cpp_condition(){
 729     log check_cpp_condition "$@"
 730     header=$1
 731     condition=$2
 732     shift 2
 733     check_cpp $($filter_cppflags "$@") <<EOF
 734 #include <$header>
 735 #if !($condition)
 736 #error "unsatisfied condition: $condition"
 737 #endif
 738 EOF
 739 }
 740
 741 check_lib(){
 742     log check_lib "$@"
 743     header="$1"
 744     func="$2"
 745     shift 2
 746     check_header $header && check_func $func "$@" && add_extralibs "$@"
 747 }
 748
 749 check_lib2(){
 750     log check_lib2 "$@"
 751     headers="$1"
 752     funcs="$2"
 753     shift 2
 754     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 755 }
 756
 757 check_pkg_config(){
 758     log check_pkg_config "$@"
 759     pkg="$1"
 760     headers="$2"
 761     funcs="$3"
 762     shift 3
 763     $pkg_config --exists $pkg || return
 764     pkg_cflags=$($pkg_config --cflags $pkg)
 765     pkg_libs=$($pkg_config --libs $pkg)
 766     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 767         set_safe ${pkg}_cflags $pkg_cflags   &&
 768         set_safe ${pkg}_libs   $pkg_libs
 769 }
 770
 771 check_exec(){
 772     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 773 }
 774
 775 check_exec_crash(){
 776     code=$(cat)
 777
 778     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 779     # are safe but may not be available everywhere.  Thus we use
 780     # raise(SIGTERM) instead.  The check is run in a subshell so we
 781     # can redirect the "Terminated" message from the shell.  SIGBUS
 782     # is not defined by standard C so it is used conditionally.
 783
 784     (check_exec "$@") >> $logfile 2>&1 <<EOF
 785 #include <signal.h>
 786 static void sighandler(int sig){
 787     raise(SIGTERM);
 788 }
 789 int main(void){
 790     signal(SIGILL, sighandler);
 791     signal(SIGFPE, sighandler);
 792     signal(SIGSEGV, sighandler);
 793 #ifdef SIGBUS
 794     signal(SIGBUS, sighandler);
 795 #endif
 796     { $code }
 797 }
 798 EOF
 799 }
 800
 801 check_type(){
 802     log check_type "$@"
 803     headers=$1
 804     type=$2
 805     shift 2
 806     disable_safe "$type"
 807     incs=""
 808     for hdr in $headers; do
 809         incs="$incs
 810 #include <$hdr>"
 811     done
 812     check_cc "$@" <<EOF && enable_safe "$type"
 813 $incs
 814 $type v;
 815 EOF
 816 }
 817
 818 check_struct(){
 819     log check_type "$@"
 820     headers=$1
 821     struct=$2
 822     member=$3
 823     shift 3
 824     disable_safe "${struct}_${member}"
 825     incs=""
 826     for hdr in $headers; do
 827         incs="$incs
 828 #include <$hdr>"
 829     done
 830     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 831 $incs
 832 const void *p = &(($struct *)0)->$member;
 833 EOF
 834 }
 835
 836 require(){
 837     name="$1"
 838     header="$2"
 839     func="$3"
 840     shift 3
 841     check_lib $header $func "$@" || die "ERROR: $name not found"
 842 }
 843
 844 require2(){
 845     name="$1"
 846     headers="$2"
 847     func="$3"
 848     shift 3
 849     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 850 }
 851
 852 require_pkg_config(){
 853     pkg="$1"
 854     check_pkg_config "$@" || die "ERROR: $pkg not found"
 855     add_cflags    $(get_safe ${pkg}_cflags)
 856     add_extralibs $(get_safe ${pkg}_libs)
 857 }
 858
 859 check_host_cc(){
 860     log check_host_cc "$@"
 861     cat > $TMPC
 862     log_file $TMPC
 863     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 864 }
 865
 866 check_host_cflags(){
 867     log check_host_cflags "$@"
 868     check_host_cc "$@" <<EOF && append host_cflags "$@"
 869 int x;
 870 EOF
 871 }
 872
 873 apply(){
 874     file=$1
 875     shift
 876     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 877 }
 878
 879 cp_if_changed(){
 880     cmp -s "$1" "$2" &&
 881         echo "$2 is unchanged" ||
 882         cp -f "$1" "$2"
 883 }
 884
 885 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 886 # system-dependent things.
 887
 888 COMPONENT_LIST="
 889     bsfs
 890     decoders
 891     demuxers
 892     encoders
 893     filters
 894     hwaccels
 895     indevs
 896     muxers
 897     outdevs
 898     parsers
 899     protocols
 900 "
 901
 902 CONFIG_LIST="
 903     $COMPONENT_LIST
 904     aandct
 905     ac3dsp
 906     audio_float
 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     libdc1394
 933     libdirac
 934     libfaac
 935     libfreetype
 936     libgsm
 937     libmp3lame
 938     libnut
 939     libopencore_amrnb
 940     libopencore_amrwb
 941     libopencv
 942     libopenjpeg
 943     librtmp
 944     libschroedinger
 945     libspeex
 946     libtheora
 947     libvo_aacenc
 948     libvo_amrwbenc
 949     libvorbis
 950     libvpx
 951     libx264
 952     libxavs
 953     libxvid
 954     lpc
 955     lsp
 956     mdct
 957     memalign_hack
 958     mlib
 959     mpegaudio_hp
 960     network
 961     nonfree
 962     pic
 963     postproc
 964     rdft
 965     rtpdec
 966     runtime_cpudetect
 967     shared
 968     sinewin
 969     small
 970     sram
 971     static
 972     swscale
 973     swscale_alpha
 974     vaapi
 975     vdpau
 976     version3
 977     x11grab
 978     zlib
 979 "
 980
 981 THREADS_LIST='
 982     pthreads
 983     w32threads
 984 '
 985
 986 ARCH_LIST='
 987     alpha
 988     arm
 989     avr32
 990     avr32_ap
 991     avr32_uc
 992     bfin
 993     ia64
 994     m68k
 995     mips
 996     mips64
 997     parisc
 998     ppc
 999     ppc64
1000     s390
1001     sh4
1002     sparc
1003     sparc64
1004     tomi
1005     x86
1006     x86_32
1007     x86_64
1008 '
1009
1010 ARCH_EXT_LIST='
1011     altivec
1012     amd3dnow
1013     amd3dnowext
1014     armv5te
1015     armv6
1016     armv6t2
1017     armvfp
1018     avx
1019     iwmmxt
1020     mmi
1021     mmx
1022     mmx2
1023     neon
1024     ppc4xx
1025     sse
1026     ssse3
1027     vis
1028 '
1029
1030 HAVE_LIST_PUB='
1031     bigendian
1032     fast_unaligned
1033 '
1034
1035 HAVE_LIST="
1036     $ARCH_EXT_LIST
1037     $HAVE_LIST_PUB
1038     $THREADS_LIST
1039     aligned_stack
1040     alsa_asoundlib_h
1041     altivec_h
1042     arpa_inet_h
1043     attribute_may_alias
1044     attribute_packed
1045     bswap
1046     closesocket
1047     cmov
1048     dcbzl
1049     dev_bktr_ioctl_bt848_h
1050     dev_bktr_ioctl_meteor_h
1051     dev_ic_bt8xx_h
1052     dev_video_meteor_ioctl_meteor_h
1053     dev_video_bktr_ioctl_bt848_h
1054     dlfcn_h
1055     dlopen
1056     dos_paths
1057     ebp_available
1058     ebx_available
1059     exp2
1060     exp2f
1061     fast_64bit
1062     fast_clz
1063     fast_cmov
1064     fcntl
1065     fork
1066     getaddrinfo
1067     gethrtime
1068     GetProcessMemoryInfo
1069     GetProcessTimes
1070     getrusage
1071     gnu_as
1072     struct_rusage_ru_maxrss
1073     ibm_asm
1074     inet_aton
1075     inline_asm
1076     isatty
1077     kbhit
1078     ldbrx
1079     libdc1394_1
1080     libdc1394_2
1081     llrint
1082     llrintf
1083     local_aligned_16
1084     local_aligned_8
1085     localtime_r
1086     log2
1087     log2f
1088     loongson
1089     lrint
1090     lrintf
1091     lzo1x_999_compress
1092     machine_ioctl_bt848_h
1093     machine_ioctl_meteor_h
1094     malloc_h
1095     MapViewOfFile
1096     memalign
1097     mkstemp
1098     mmap
1099     pld
1100     posix_memalign
1101     round
1102     roundf
1103     sdl
1104     sdl_video_size
1105     setmode
1106     sndio_h
1107     socklen_t
1108     soundcard_h
1109     poll_h
1110     setrlimit
1111     strerror_r
1112     strtok_r
1113     struct_addrinfo
1114     struct_ipv6_mreq
1115     struct_sockaddr_in6
1116     struct_sockaddr_sa_len
1117     struct_sockaddr_storage
1118     symver
1119     symver_gnu_asm
1120     symver_asm_label
1121     sys_mman_h
1122     sys_resource_h
1123     sys_select_h
1124     sys_soundcard_h
1125     sys_videoio_h
1126     ten_operands
1127     termios_h
1128     threads
1129     truncf
1130     vfp_args
1131     VirtualAlloc
1132     winsock2_h
1133     xform_asm
1134     xmm_clobbers
1135     yasm
1136 "
1137
1138 # options emitted with CONFIG_ prefix but not available on command line
1139 CONFIG_EXTRA="
1140     avutil
1141     gplv3
1142     lgplv3
1143 "
1144
1145 CMDLINE_SELECT="
1146     $ARCH_EXT_LIST
1147     $CONFIG_LIST
1148     $THREADS_LIST
1149     asm
1150     cross_compile
1151     debug
1152     extra_warnings
1153     logging
1154     optimizations
1155     stripping
1156     symver
1157     yasm
1158 "
1159
1160 PATHS_LIST='
1161     bindir
1162     datadir
1163     incdir
1164     libdir
1165     mandir
1166     prefix
1167     shlibdir
1168 '
1169
1170 CMDLINE_SET="
1171     $PATHS_LIST
1172     ar
1173     arch
1174     as
1175     build_suffix
1176     cc
1177     cpu
1178     cross_prefix
1179     dep_cc
1180     extra_version
1181     host_cc
1182     host_cflags
1183     host_ldflags
1184     host_libs
1185     host_os
1186     ld
1187     logfile
1188     malloc_prefix
1189     nm
1190     pkg_config
1191     samples
1192     source_path
1193     strip
1194     sysinclude
1195     sysroot
1196     target_exec
1197     target_os
1198     target_path
1199 "
1200
1201 CMDLINE_APPEND="
1202     extra_cflags
1203 "
1204
1205 # code dependency declarations
1206
1207 # architecture extensions
1208
1209 armv5te_deps="arm"
1210 armv6_deps="arm"
1211 armv6t2_deps="arm"
1212 armvfp_deps="arm"
1213 iwmmxt_deps="arm"
1214 neon_deps="arm"
1215
1216 mmi_deps="mips"
1217
1218 altivec_deps="ppc"
1219 ppc4xx_deps="ppc"
1220
1221 vis_deps="sparc"
1222
1223 x86_64_suggest="cmov fast_cmov"
1224 amd3dnow_deps="mmx"
1225 amd3dnowext_deps="amd3dnow"
1226 mmx_deps="x86"
1227 mmx2_deps="mmx"
1228 sse_deps="mmx"
1229 ssse3_deps="sse"
1230 avx_deps="ssse3"
1231
1232 aligned_stack_if_any="ppc x86"
1233 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1234 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1235 fast_unaligned_if_any="armv6 ppc x86"
1236
1237 need_memalign="altivec neon sse"
1238 inline_asm_deps="!tms470"
1239
1240 symver_if_any="symver_asm_label symver_gnu_asm"
1241
1242 # subsystems
1243 dct_select="rdft"
1244 mdct_select="fft"
1245 rdft_select="fft"
1246
1247 # decoders / encoders / hardware accelerators
1248 aac_decoder_select="mdct rdft sinewin"
1249 aac_encoder_select="mdct sinewin"
1250 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1251 ac3_decoder_select="mdct ac3dsp ac3_parser"
1252 ac3_encoder_select="mdct ac3dsp"
1253 ac3_fixed_encoder_select="ac3dsp"
1254 alac_encoder_select="lpc"
1255 amrnb_decoder_select="lsp"
1256 amrwb_decoder_select="lsp"
1257 atrac1_decoder_select="mdct sinewin"
1258 atrac3_decoder_select="mdct"
1259 binkaudio_dct_decoder_select="mdct rdft dct"
1260 binkaudio_rdft_decoder_select="mdct rdft"
1261 cavs_decoder_select="golomb"
1262 cook_decoder_select="mdct sinewin"
1263 cscd_decoder_suggest="zlib"
1264 dca_decoder_select="mdct"
1265 dnxhd_encoder_select="aandct"
1266 dxa_decoder_select="zlib"
1267 eac3_decoder_select="ac3_decoder"
1268 eamad_decoder_select="aandct"
1269 eatgq_decoder_select="aandct"
1270 eatqi_decoder_select="aandct"
1271 ffv1_decoder_select="golomb"
1272 flac_decoder_select="golomb"
1273 flac_encoder_select="golomb lpc"
1274 flashsv_decoder_select="zlib"
1275 flashsv_encoder_select="zlib"
1276 flv_decoder_select="h263_decoder"
1277 flv_encoder_select="h263_encoder"
1278 fraps_decoder_select="huffman"
1279 h261_encoder_select="aandct"
1280 h263_decoder_select="h263_parser"
1281 h263_encoder_select="aandct"
1282 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1283 h263i_decoder_select="h263_decoder"
1284 h263p_encoder_select="h263_encoder"
1285 h264_decoder_select="golomb h264dsp h264pred"
1286 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1287 h264_dxva2_hwaccel_deps="dxva2api_h"
1288 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1289 h264_vaapi_hwaccel_select="vaapi"
1290 h264_vdpau_decoder_select="vdpau h264_decoder"
1291 imc_decoder_select="fft mdct"
1292 jpegls_decoder_select="golomb"
1293 jpegls_encoder_select="golomb"
1294 ljpeg_encoder_select="aandct"
1295 loco_decoder_select="golomb"
1296 mjpeg_encoder_select="aandct"
1297 mlp_decoder_select="mlp_parser"
1298 mp1float_decoder_select="dct"
1299 mp2float_decoder_select="dct"
1300 mp3adufloat_decoder_select="dct"
1301 mp3float_decoder_select="dct"
1302 mp3on4float_decoder_select="dct"
1303 mpeg1video_encoder_select="aandct"
1304 mpeg2video_encoder_select="aandct"
1305 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1306 mpeg4_encoder_select="h263_encoder"
1307 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1308 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1309 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1310 mpeg2_crystalhd_decoder_select="crystalhd"
1311 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1312 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1313 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1314 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1315 mpeg4_crystalhd_decoder_select="crystalhd"
1316 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1317 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1318 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1319 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1320 msmpeg4_crystalhd_decoder_select="crystalhd"
1321 msmpeg4v1_decoder_select="h263_decoder"
1322 msmpeg4v1_encoder_select="h263_encoder"
1323 msmpeg4v2_decoder_select="h263_decoder"
1324 msmpeg4v2_encoder_select="h263_encoder"
1325 msmpeg4v3_decoder_select="h263_decoder"
1326 msmpeg4v3_encoder_select="h263_encoder"
1327 nellymoser_decoder_select="mdct sinewin"
1328 nellymoser_encoder_select="mdct sinewin"
1329 png_decoder_select="zlib"
1330 png_encoder_select="zlib"
1331 qcelp_decoder_select="lsp"
1332 qdm2_decoder_select="mdct rdft"
1333 ra_144_encoder_select="lpc"
1334 rv10_decoder_select="h263_decoder"
1335 rv10_encoder_select="h263_encoder"
1336 rv20_decoder_select="h263_decoder"
1337 rv20_encoder_select="h263_encoder"
1338 rv30_decoder_select="golomb h264pred"
1339 rv40_decoder_select="golomb h264pred"
1340 shorten_decoder_select="golomb"
1341 sipr_decoder_select="lsp"
1342 snow_decoder_select="dwt"
1343 snow_encoder_select="aandct dwt"
1344 sonic_decoder_select="golomb"
1345 sonic_encoder_select="golomb"
1346 sonic_ls_encoder_select="golomb"
1347 svq1_encoder_select="aandct"
1348 svq3_decoder_select="golomb h264dsp h264pred"
1349 svq3_decoder_suggest="zlib"
1350 theora_decoder_select="vp3_decoder"
1351 tiff_decoder_suggest="zlib"
1352 tiff_encoder_suggest="zlib"
1353 truehd_decoder_select="mlp_decoder"
1354 tscc_decoder_select="zlib"
1355 twinvq_decoder_select="mdct lsp sinewin"
1356 vc1_decoder_select="h263_decoder"
1357 vc1_crystalhd_decoder_select="crystalhd"
1358 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1359 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1360 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1361 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1362 vorbis_decoder_select="mdct"
1363 vorbis_encoder_select="mdct"
1364 vp6_decoder_select="huffman"
1365 vp6a_decoder_select="vp6_decoder"
1366 vp6f_decoder_select="vp6_decoder"
1367 vp8_decoder_select="h264pred"
1368 wmapro_decoder_select="mdct sinewin"
1369 wmav1_decoder_select="mdct sinewin"
1370 wmav1_encoder_select="mdct sinewin"
1371 wmav2_decoder_select="mdct sinewin"
1372 wmav2_encoder_select="mdct sinewin"
1373 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1374 wmv1_decoder_select="h263_decoder"
1375 wmv1_encoder_select="h263_encoder"
1376 wmv2_decoder_select="h263_decoder"
1377 wmv2_encoder_select="h263_encoder"
1378 wmv3_decoder_select="vc1_decoder"
1379 wmv3_crystalhd_decoder_select="crystalhd"
1380 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1381 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1382 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1383 zlib_decoder_select="zlib"
1384 zlib_encoder_select="zlib"
1385 zmbv_decoder_select="zlib"
1386 zmbv_encoder_select="zlib"
1387
1388 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1389 vaapi_deps="va_va_h"
1390 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1391
1392 # parsers
1393 h264_parser_select="golomb h264dsp h264pred"
1394
1395 # external libraries
1396 libdirac_decoder_deps="libdirac !libschroedinger"
1397 libdirac_encoder_deps="libdirac"
1398 libfaac_encoder_deps="libfaac"
1399 libgsm_decoder_deps="libgsm"
1400 libgsm_encoder_deps="libgsm"
1401 libgsm_ms_decoder_deps="libgsm"
1402 libgsm_ms_encoder_deps="libgsm"
1403 libmp3lame_encoder_deps="libmp3lame"
1404 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1405 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1406 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1407 libopenjpeg_decoder_deps="libopenjpeg"
1408 libschroedinger_decoder_deps="libschroedinger"
1409 libschroedinger_encoder_deps="libschroedinger"
1410 libspeex_decoder_deps="libspeex"
1411 libtheora_encoder_deps="libtheora"
1412 libvo_aacenc_encoder_deps="libvo_aacenc"
1413 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1414 libvorbis_encoder_deps="libvorbis"
1415 libvpx_decoder_deps="libvpx"
1416 libvpx_encoder_deps="libvpx"
1417 libx264_encoder_deps="libx264"
1418 libxavs_encoder_deps="libxavs"
1419 libxvid_encoder_deps="libxvid"
1420
1421 # demuxers / muxers
1422 ac3_demuxer_select="ac3_parser"
1423 asf_stream_muxer_select="asf_muxer"
1424 avisynth_demuxer_deps="avisynth"
1425 dirac_demuxer_select="dirac_parser"
1426 eac3_demuxer_select="ac3_parser"
1427 flac_demuxer_select="flac_parser"
1428 ipod_muxer_select="mov_muxer"
1429 libnut_demuxer_deps="libnut"
1430 libnut_muxer_deps="libnut"
1431 matroska_audio_muxer_select="matroska_muxer"
1432 matroska_demuxer_suggest="zlib bzlib"
1433 mov_demuxer_suggest="zlib"
1434 mp3_demuxer_select="mpegaudio_parser"
1435 mp4_muxer_select="mov_muxer"
1436 mpegtsraw_demuxer_select="mpegts_demuxer"
1437 mxf_d10_muxer_select="mxf_muxer"
1438 ogg_demuxer_select="golomb"
1439 psp_muxer_select="mov_muxer"
1440 rtp_demuxer_select="sdp_demuxer"
1441 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1442 rtsp_demuxer_select="http_protocol rtpdec"
1443 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1444 sap_demuxer_select="sdp_demuxer"
1445 sap_muxer_select="rtp_muxer rtp_protocol"
1446 sdp_demuxer_select="rtpdec"
1447 spdif_muxer_select="aac_parser"
1448 tg2_muxer_select="mov_muxer"
1449 tgp_muxer_select="mov_muxer"
1450 w64_demuxer_deps="wav_demuxer"
1451
1452 # indevs / outdevs
1453 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1454 alsa_outdev_deps="alsa_asoundlib_h"
1455 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1456 dv1394_indev_deps="dv1394 dv_demuxer"
1457 fbdev_indev_deps="linux_fb_h"
1458 jack_indev_deps="jack_jack_h"
1459 libdc1394_indev_deps="libdc1394"
1460 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1461 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1462 sndio_indev_deps="sndio_h"
1463 sndio_outdev_deps="sndio_h"
1464 v4l_indev_deps="linux_videodev_h"
1465 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1466 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1467 vfwcap_indev_extralibs="-lavicap32"
1468 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1469 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1470
1471 # protocols
1472 gopher_protocol_deps="network"
1473 http_protocol_deps="network"
1474 http_protocol_select="tcp_protocol"
1475 mmsh_protocol_select="http_protocol"
1476 mmst_protocol_deps="network"
1477 rtmp_protocol_select="tcp_protocol"
1478 rtp_protocol_select="udp_protocol"
1479 tcp_protocol_deps="network"
1480 udp_protocol_deps="network"
1481
1482 # filters
1483 blackframe_filter_deps="gpl"
1484 cropdetect_filter_deps="gpl"
1485 drawtext_filter_deps="libfreetype"
1486 frei0r_filter_deps="frei0r dlopen strtok_r"
1487 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1488 hqdn3d_filter_deps="gpl"
1489 mp_filter_deps="gpl"
1490 ocv_filter_deps="libopencv"
1491 scale_filter_deps="swscale"
1492 yadif_filter_deps="gpl"
1493
1494 # libraries
1495 avdevice_deps="avcodec avformat"
1496 avformat_deps="avcodec"
1497
1498 # programs
1499 ffmpeg_deps="avcodec avformat swscale"
1500 ffmpeg_select="buffer_filter"
1501 ffplay_deps="avcodec avformat swscale sdl"
1502 ffplay_select="rdft"
1503 ffprobe_deps="avcodec avformat"
1504 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1505 ffserver_extralibs='$ldl'
1506
1507 doc_deps="texi2html"
1508
1509 # tests
1510
1511 test_deps(){
1512     suf1=$1
1513     suf2=$2
1514     shift 2
1515     for v; do
1516         dep=${v%=*}
1517         tests=${v#*=}
1518         for name in ${tests}; do
1519             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1520         done
1521     done
1522 }
1523
1524 set_ne_test_deps(){
1525     eval ${1}_be_test_deps="bigendian"
1526     eval ${1}_le_test_deps="!bigendian"
1527 }
1528
1529 test_deps _encoder _decoder                                             \
1530     adpcm_g726=g726                                                     \
1531     adpcm_ima_qt                                                        \
1532     adpcm_ima_wav                                                       \
1533     adpcm_ms                                                            \
1534     adpcm_swf                                                           \
1535     adpcm_yamaha=adpcm_yam                                              \
1536     alac                                                                \
1537     asv1                                                                \
1538     asv2                                                                \
1539     bmp                                                                 \
1540     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1541     dvvideo="dv dv50"                                                   \
1542     ffv1                                                                \
1543     flac                                                                \
1544     flashsv                                                             \
1545     flv                                                                 \
1546     gif                                                                 \
1547     h261                                                                \
1548     h263="h263 h263p"                                                   \
1549     huffyuv                                                             \
1550     jpegls                                                              \
1551     mjpeg="jpg mjpeg ljpeg"                                             \
1552     mp2                                                                 \
1553     mpeg1video="mpeg mpeg1b"                                            \
1554     mpeg2video="mpeg2 mpeg2thread"                                      \
1555     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1556     msmpeg4v3=msmpeg4                                                   \
1557     msmpeg4v2                                                           \
1558     pbm=pbmpipe                                                         \
1559     pcx                                                                 \
1560     pgm="pgm pgmpipe"                                                   \
1561     png                                                                 \
1562     ppm="ppm ppmpipe"                                                   \
1563     rawvideo="rgb yuv"                                                  \
1564     roq                                                                 \
1565     rv10                                                                \
1566     rv20                                                                \
1567     sgi                                                                 \
1568     snow="snow snowll"                                                  \
1569     svq1                                                                \
1570     targa=tga                                                           \
1571     tiff                                                                \
1572     wmav1                                                               \
1573     wmav2                                                               \
1574     wmv1                                                                \
1575     wmv2                                                                \
1576
1577 test_deps _muxer _demuxer                                               \
1578     aiff                                                                \
1579     pcm_alaw=alaw                                                       \
1580     asf                                                                 \
1581     au                                                                  \
1582     avi                                                                 \
1583     dv=dv_fmt                                                           \
1584     ffm                                                                 \
1585     flv=flv_fmt                                                         \
1586     gxf                                                                 \
1587     matroska=mkv                                                        \
1588     mmf                                                                 \
1589     mov                                                                 \
1590     pcm_mulaw=mulaw                                                     \
1591     mxf                                                                 \
1592     nut                                                                 \
1593     ogg                                                                 \
1594     rawvideo=pixfmt                                                     \
1595     rm                                                                  \
1596     swf                                                                 \
1597     mpegts=ts                                                           \
1598     voc                                                                 \
1599     wav                                                                 \
1600     yuv4mpegpipe=yuv4mpeg                                               \
1601
1602 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1603 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1604
1605 set_ne_test_deps pixdesc
1606 set_ne_test_deps pixfmts_copy
1607 set_ne_test_deps pixfmts_crop
1608 set_ne_test_deps pixfmts_hflip
1609 set_ne_test_deps pixfmts_null
1610 set_ne_test_deps pixfmts_pad
1611 set_ne_test_deps pixfmts_scale
1612 set_ne_test_deps pixfmts_vflip
1613
1614 # default parameters
1615
1616 logfile="config.log"
1617
1618 # installation paths
1619 prefix_default="/usr/local"
1620 bindir_default='${prefix}/bin'
1621 datadir_default='${prefix}/share/ffmpeg'
1622 incdir_default='${prefix}/include'
1623 libdir_default='${prefix}/lib'
1624 mandir_default='${prefix}/share/man'
1625 shlibdir_default="$libdir_default"
1626
1627 # toolchain
1628 ar_default="ar"
1629 cc_default="gcc"
1630 cc_version=\"unknown\"
1631 host_cc_default="gcc"
1632 ln_s="ln -sf"
1633 nm_default="nm"
1634 objformat="elf"
1635 pkg_config_default=pkg-config
1636 ranlib="ranlib"
1637 strip_default="strip"
1638 yasmexe="yasm"
1639 nogas=":"
1640
1641 nm_opts='-g'
1642
1643 # machine
1644 arch_default=$(uname -m)
1645 cpu="generic"
1646
1647 # OS
1648 target_os_default=$(tolower $(uname -s))
1649 host_os=$target_os_default
1650
1651 # configurable options
1652 enable avcodec
1653 enable avdevice
1654 enable avfilter
1655 enable avformat
1656 enable avutil
1657 enable asm
1658 enable debug
1659 enable doc
1660 enable fastdiv
1661 enable ffmpeg
1662 enable ffplay
1663 enable ffprobe
1664 enable ffserver
1665 enable mpegaudio_hp
1666 enable network
1667 enable optimizations
1668 enable protocols
1669 enable static
1670 enable stripping
1671 enable swscale
1672 enable swscale_alpha
1673
1674 # build settings
1675 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1676 FFSERVERLDFLAGS=-Wl,-E
1677 LIBPREF="lib"
1678 LIBSUF=".a"
1679 FULLNAME='$(NAME)$(BUILDSUF)'
1680 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1681 SLIBPREF="lib"
1682 SLIBSUF=".so"
1683 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1684 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1685 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1686 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1687
1688 CC_O='-o $@'
1689
1690 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1691 host_libs='-lm'
1692
1693 target_path='$(CURDIR)'
1694
1695 # since the object filename is not given with the -MM flag, the compiler
1696 # is only able to print the basename, and we must add the path ourselves
1697 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1698 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1699
1700 # find source path
1701 source_path="$(dirname "$0")"
1702 enable source_path_used
1703 if test -f configure; then
1704     source_path="$(pwd)"
1705     disable source_path_used
1706 else
1707     source_path="$(cd "$source_path"; pwd)"
1708     echo "$source_path" | grep -q '[[:blank:]]' &&
1709         die "Out of tree builds are impossible with whitespace in source path."
1710     test -e "$source_path/config.h" &&
1711         die "Out of tree builds are impossible with config.h in source dir."
1712 fi
1713
1714 for v in "$@"; do
1715     r=${v#*=}
1716     l=${v%"$r"}
1717     r=$(sh_quote "$r")
1718     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1719 done
1720
1721 find_things(){
1722     thing=$1
1723     pattern=$2
1724     file=$source_path/$3
1725     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1726 }
1727
1728 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1729 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1730 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1731 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1732 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1733 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1734 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1735 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1736 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1737 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1738 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1739
1740 find_tests(){
1741     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1742 }
1743
1744 ACODEC_TESTS=$(find_tests acodec)
1745 VCODEC_TESTS=$(find_tests vsynth1)
1746 LAVF_TESTS=$(find_tests lavf)
1747 LAVFI_TESTS=$(find_tests lavfi)
1748 SEEK_TESTS=$(find_tests seek seek_)
1749
1750 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1751
1752 for n in $COMPONENT_LIST; do
1753     v=$(toupper ${n%s})_LIST
1754     eval enable \$$v
1755     eval ${n}_if_any="\$$v"
1756 done
1757
1758 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1759
1760 die_unknown(){
1761     echo "Unknown option \"$1\"."
1762     echo "See $0 --help for available options."
1763     exit 1
1764 }
1765
1766 show_list() {
1767     suffix=_$1
1768     shift
1769     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1770     exit 0
1771 }
1772
1773 for opt do
1774     optval="${opt#*=}"
1775     case "$opt" in
1776     --extra-ldflags=*) add_ldflags $optval
1777     ;;
1778     --extra-libs=*) add_extralibs $optval
1779     ;;
1780     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1781     ;;
1782     --enable-debug=*) debuglevel="$optval"
1783     ;;
1784     --disable-everything)
1785     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1786     ;;
1787     --enable-*=*|--disable-*=*)
1788     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1789     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1790     eval list=\$$(toupper $thing)_LIST
1791     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1792     $action $(filter "$name" $list)
1793     ;;
1794     --enable-?*|--disable-?*)
1795     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1796     if is_in $option $COMPONENT_LIST; then
1797         test $action = disable && action=unset
1798         eval $action \$$(toupper ${option%s})_LIST
1799     elif is_in $option $CMDLINE_SELECT; then
1800         $action $option
1801     else
1802         die_unknown $opt
1803     fi
1804     ;;
1805     --list-*)
1806         NAME="${opt#--list-}"
1807         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1808         NAME=${NAME%s}
1809         eval show_list $NAME \$$(toupper $NAME)_LIST
1810     ;;
1811     --help|-h) show_help
1812     ;;
1813     *)
1814     optname="${opt%%=*}"
1815     optname="${optname#--}"
1816     optname=$(echo "$optname" | sed 's/-/_/g')
1817     if is_in $optname $CMDLINE_SET; then
1818         eval $optname='$optval'
1819     elif is_in $optname $CMDLINE_APPEND; then
1820         append $optname "$optval"
1821     else
1822          die_unknown $opt
1823     fi
1824     ;;
1825     esac
1826 done
1827
1828 disabled logging && logfile=/dev/null
1829
1830 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1831 set >> $logfile
1832
1833 test -n "$cross_prefix" && enable cross_compile
1834
1835 if enabled cross_compile; then
1836     test -n "$arch" && test -n "$target_os" ||
1837         die "Must specify target arch and OS when cross-compiling"
1838 fi
1839
1840 set_default arch target_os
1841
1842 ar_default="${cross_prefix}${ar_default}"
1843 cc_default="${cross_prefix}${cc_default}"
1844 nm_default="${cross_prefix}${nm_default}"
1845 pkg_config_default="${cross_prefix}${pkg_config_default}"
1846 ranlib="${cross_prefix}${ranlib}"
1847 strip_default="${cross_prefix}${strip_default}"
1848
1849 sysinclude_default="${sysroot}/usr/include"
1850
1851 set_default cc nm pkg_config strip sysinclude
1852 enabled cross_compile || host_cc_default=$cc
1853 set_default host_cc
1854
1855 exesuf() {
1856     case $1 in
1857         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1858     esac
1859 }
1860
1861 EXESUF=$(exesuf $target_os)
1862 HOSTEXESUF=$(exesuf $host_os)
1863
1864 # set temporary file name
1865 : ${TMPDIR:=$TEMPDIR}
1866 : ${TMPDIR:=$TMP}
1867 : ${TMPDIR:=/tmp}
1868
1869 if ! check_cmd mktemp -u XXXXXX; then
1870     # simple replacement for missing mktemp
1871     # NOT SAFE FOR GENERAL USE
1872     mktemp(){
1873         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1874     }
1875 fi
1876
1877 tmpfile(){
1878     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1879         (set -C; exec > $tmp) 2>/dev/null ||
1880         die "Unable to create temporary file in $TMPDIR."
1881     append TMPFILES $tmp
1882     eval $1=$tmp
1883 }
1884
1885 trap 'rm -f -- $TMPFILES' EXIT
1886
1887 tmpfile TMPC  .c
1888 tmpfile TMPE  $EXESUF
1889 tmpfile TMPH  .h
1890 tmpfile TMPO  .o
1891 tmpfile TMPS  .S
1892 tmpfile TMPV  .ver
1893 tmpfile TMPSH .sh
1894 tmpfile TMPASM .asm
1895
1896 unset -f mktemp
1897
1898 chmod +x $TMPE
1899
1900 # make sure we can execute files in $TMPDIR
1901 cat > $TMPSH 2>> $logfile <<EOF
1902 #! /bin/sh
1903 EOF
1904 chmod +x $TMPSH >> $logfile 2>&1
1905 if ! $TMPSH >> $logfile 2>&1; then
1906     cat <<EOF
1907 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1908 variable to another directory and make sure that it is not mounted noexec.
1909 EOF
1910     die "Sanity test failed."
1911 fi
1912
1913 filter_cflags=echo
1914 filter_cppflags=echo
1915 filter_asflags=echo
1916
1917 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1918     cc_type=llvm_gcc
1919     cc_version=__VERSION__
1920     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1921     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1922     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1923     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1924     speed_cflags='-O3'
1925     size_cflags='-Os'
1926 elif $cc -v 2>&1 | grep -qi ^gcc; then
1927     cc_type=gcc
1928     cc_version=__VERSION__
1929     gcc_version=$($cc --version | head -n1)
1930     gcc_basever=$($cc -dumpversion)
1931     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1932     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1933     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1934     if ! $cc -dumpversion | grep -q '^2\.'; then
1935         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1936         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1937     fi
1938     speed_cflags='-O3'
1939     size_cflags='-Os'
1940 elif $cc --version 2>/dev/null | grep -q Intel; then
1941     cc_type=icc
1942     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1943     cc_ident=$($cc --version | head -n1)
1944     icc_version=$($cc -dumpversion)
1945     CC_DEPFLAGS='-MMD'
1946     AS_DEPFLAGS='-MMD'
1947     speed_cflags='-O3'
1948     size_cflags='-Os'
1949     noopt_cflags='-O1'
1950 elif $cc -v 2>&1 | grep -q xlc; then
1951     cc_type=xlc
1952     cc_version="AV_STRINGIFY(__IBMC__)"
1953     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1954     speed_cflags='-O5'
1955     size_cflags='-O5 -qcompact'
1956 elif $cc -V 2>/dev/null | grep -q Compaq; then
1957     cc_type=ccc
1958     cc_version="AV_STRINGIFY(__DECC_VER)"
1959     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1960     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1961     debuglevel=3
1962     add_ldflags -Wl,-z,now # calls to libots crash without this
1963     speed_cflags='-fast'
1964     size_cflags='-O1'
1965 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1966     test -d "$sysroot" || die "No valid sysroot specified."
1967     cc_type=armcc
1968     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1969     cc_ident=$($cc --vsn | head -n1)
1970     armcc_conf="$PWD/armcc.conf"
1971     $cc --arm_linux_configure                 \
1972         --arm_linux_config_file="$armcc_conf" \
1973         --configure_sysroot="$sysroot"        \
1974         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1975         die "Error creating armcc configuration file."
1976     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1977     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1978     as_default="${cross_prefix}gcc"
1979     CC_DEPFLAGS='-MMD'
1980     AS_DEPFLAGS='-MMD'
1981     speed_cflags='-O3'
1982     size_cflags='-Os'
1983     filter_asflags="filter_out -W${armcc_opt}*"
1984 elif $cc -version 2>/dev/null | grep -q TMS470; then
1985     cc_type=tms470
1986     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1987     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1988     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1989     CC_O='-fr=$(@D)'
1990     as_default="${cross_prefix}gcc"
1991     ld_default="${cross_prefix}gcc"
1992     TMPO=$(basename $TMPC .c).o
1993     append TMPFILES $TMPO
1994     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1995     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1996     AS_DEPFLAGS='-MMD'
1997     speed_cflags='-O3 -mf=5'
1998     size_cflags='-O3 -mf=2'
1999     filter_cflags=tms470_flags
2000     tms470_flags(){
2001         for flag; do
2002             case $flag in
2003                 -march=*|-mcpu=*)
2004                     case "${flag#*=}" in
2005                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2006                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2007                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2008                         armv6*|arm11*)          echo -mv=6   ;;
2009                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2010                                                 echo -mv=5e  ;;
2011                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2012                     esac
2013                     ;;
2014                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2015                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2016                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2017                 -msoft-float)   echo --float_support=vfplib       ;;
2018                 -O[0-3]|-mf=*)  echo $flag                        ;;
2019                 -g)             echo -g -mn                       ;;
2020                 -pds=*)         echo $flag                        ;;
2021             esac
2022         done
2023     }
2024 elif $cc -v 2>&1 | grep -q clang; then
2025     cc_type=clang
2026     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2027         cc_version=__clang_version__ || cc_version=__VERSION__
2028     cc_ident=$($cc --version | head -n1)
2029     CC_DEPFLAGS='-MMD'
2030     AS_DEPFLAGS='-MMD'
2031     speed_cflags='-O3'
2032     size_cflags='-Os'
2033 elif $cc -V 2>&1 | grep -q Sun; then
2034     cc_type=suncc
2035     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2036     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2037     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2038     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2039     speed_cflags='-O5'
2040     size_cflags='-O5 -xspace'
2041     filter_cflags=suncc_flags
2042     suncc_flags(){
2043         for flag; do
2044             case $flag in
2045                 -march=*|-mcpu=*)
2046                     case "${flag#*=}" in
2047                         native)                   echo -xtarget=native       ;;
2048                         v9|niagara)               echo -xarch=sparc          ;;
2049                         ultrasparc)               echo -xarch=sparcvis       ;;
2050                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2051                         i586|pentium)             echo -xchip=pentium        ;;
2052                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2053                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2054                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2055                         pentium4*)          echo -xtarget=pentium4           ;;
2056                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2057                         *-sse3)             echo -xarch=sse3                 ;;
2058                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2059                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2060                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2061                         k8|opteron|athlon64|athlon-fx)
2062                                                   echo -xarch=sse2a          ;;
2063                         athlon*)                  echo -xarch=pentium_proa   ;;
2064                     esac
2065                     ;;
2066                 -std=c99)             echo -xc99              ;;
2067                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2068                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2069                 -W*,*)                echo $flag              ;;
2070                 -f*-*|-W*)                                    ;;
2071                 *)                    echo $flag              ;;
2072             esac
2073         done
2074     }
2075 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2076     cc_type=pathscale
2077     cc_version=__PATHSCALE__
2078     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2079     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2080     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2081     speed_cflags='-O2'
2082     size_cflags='-Os'
2083 elif $cc -v 2>&1 | grep -q Open64; then
2084     cc_type=open64
2085     cc_version=__OPEN64__
2086     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2087     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2088     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2089     speed_cflags='-O2'
2090     size_cflags='-Os'
2091 fi
2092
2093 test -n "$cc_type" && enable $cc_type ||
2094     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2095
2096 : ${as_default:=$cc}
2097 : ${dep_cc_default:=$cc}
2098 : ${ld_default:=$cc}
2099 set_default ar as dep_cc ld
2100
2101 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2102 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2103
2104 add_cflags $extra_cflags
2105 add_asflags $extra_cflags
2106
2107 if test -n "$sysroot"; then
2108     case "$cc_type" in
2109         gcc|llvm_gcc|clang)
2110             add_cppflags --sysroot="$sysroot"
2111             add_ldflags --sysroot="$sysroot"
2112         ;;
2113         tms470)
2114             add_cppflags -I"$sysinclude"
2115             add_ldflags  --sysroot="$sysroot"
2116         ;;
2117     esac
2118 fi
2119
2120 if test "$cpu" = host; then
2121     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2122
2123     case "$cc_type" in
2124         gcc|llvm_gcc)
2125             check_native(){
2126                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2127                 sed -n "/$1=/{
2128                             s/.*$1=\\([^ ]*\\).*/\\1/
2129                             p
2130                             q
2131                         }" $TMPE
2132             }
2133             cpu=$(check_native -march || check_native -mcpu)
2134         ;;
2135     esac
2136
2137     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2138 fi
2139
2140 # Deal with common $arch aliases
2141 case "$arch" in
2142     arm*)
2143         arch="arm"
2144     ;;
2145     mips|mipsel|IP*)
2146         arch="mips"
2147     ;;
2148     mips64*)
2149         arch="mips"
2150         subarch="mips64"
2151     ;;
2152     parisc|hppa)
2153         arch="parisc"
2154     ;;
2155     parisc64|hppa64)
2156         arch="parisc"
2157         subarch="parisc64"
2158     ;;
2159     "Power Macintosh"|ppc|powerpc)
2160         arch="ppc"
2161     ;;
2162     ppc64|powerpc64)
2163         arch="ppc"
2164         subarch="ppc64"
2165     ;;
2166     s390|s390x)
2167         arch="s390"
2168     ;;
2169     sh4|sh)
2170         arch="sh4"
2171     ;;
2172     sun4u|sparc64)
2173         arch="sparc"
2174         subarch="sparc64"
2175     ;;
2176     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2177         arch="x86"
2178     ;;
2179 esac
2180
2181 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2182 enable $arch
2183
2184 # Add processor-specific flags
2185 if test "$cpu" = generic; then
2186     : do nothing
2187 elif enabled ppc; then
2188
2189     case $(tolower $cpu) in
2190         601|ppc601|powerpc601)
2191             cpuflags="-mcpu=601"
2192             disable altivec
2193         ;;
2194         603*|ppc603*|powerpc603*)
2195             cpuflags="-mcpu=603"
2196             disable altivec
2197         ;;
2198         604*|ppc604*|powerpc604*)
2199             cpuflags="-mcpu=604"
2200             disable altivec
2201         ;;
2202         g3|75*|ppc75*|powerpc75*)
2203             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2204             disable altivec
2205         ;;
2206         g4|745*|ppc745*|powerpc745*)
2207             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2208         ;;
2209         74*|ppc74*|powerpc74*)
2210             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2211         ;;
2212         g5|970|ppc970|powerpc970|power4*)
2213             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2214         ;;
2215         cell)
2216             cpuflags="-mcpu=cell"
2217             enable ldbrx
2218         ;;
2219         e500v2)
2220             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2221             disable altivec
2222         ;;
2223         e500)
2224             cpuflags="-mcpu=8540 -mhard-float"
2225             disable altivec
2226         ;;
2227     esac
2228
2229 elif enabled x86; then
2230
2231     case $cpu in
2232         i[345]86|pentium)
2233             cpuflags="-march=$cpu"
2234             disable mmx
2235         ;;
2236         # targets that do NOT support conditional mov (cmov)
2237         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2238             cpuflags="-march=$cpu"
2239             disable cmov
2240         ;;
2241         # targets that do support conditional mov (cmov)
2242         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2243             cpuflags="-march=$cpu"
2244             enable cmov
2245             enable fast_cmov
2246         ;;
2247         # targets that do support conditional mov but on which it's slow
2248         pentium4|pentium4m|prescott|nocona)
2249             cpuflags="-march=$cpu"
2250             enable cmov
2251             disable fast_cmov
2252         ;;
2253     esac
2254
2255 elif enabled sparc; then
2256
2257     case $cpu in
2258         niagara)
2259             cpuflags="-mcpu=$cpu"
2260             disable vis
2261         ;;
2262         sparc64)
2263             cpuflags="-mcpu=v9"
2264         ;;
2265     esac
2266
2267 elif enabled arm; then
2268
2269     case $cpu in
2270         armv*)
2271             cpuflags="-march=$cpu"
2272             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2273         ;;
2274         *)
2275             cpuflags="-mcpu=$cpu"
2276             case $cpu in
2277                 cortex-a*)                               subarch=armv7a  ;;
2278                 cortex-r*)                               subarch=armv7r  ;;
2279                 cortex-m*)                               subarch=armv7m  ;;
2280                 arm11*)                                  subarch=armv6   ;;
2281                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2282                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2283             esac
2284         ;;
2285     esac
2286
2287 elif enabled alpha; then
2288
2289     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2290
2291 elif enabled bfin; then
2292
2293     cpuflags="-mcpu=$cpu"
2294
2295 elif enabled mips; then
2296
2297     cpuflags="-march=$cpu"
2298
2299 elif enabled avr32; then
2300
2301     case $cpu in
2302         ap7[02]0[0-2])
2303             subarch="avr32_ap"
2304             cpuflags="-mpart=$cpu"
2305         ;;
2306         ap)
2307             subarch="avr32_ap"
2308             cpuflags="-march=$cpu"
2309         ;;
2310         uc3[ab]*)
2311             subarch="avr32_uc"
2312             cpuflags="-mcpu=$cpu"
2313         ;;
2314         uc)
2315             subarch="avr32_uc"
2316             cpuflags="-march=$cpu"
2317         ;;
2318     esac
2319
2320 fi
2321
2322 add_cflags $cpuflags
2323 add_asflags $cpuflags
2324
2325 # compiler sanity check
2326 check_exec <<EOF
2327 int main(void){ return 0; }
2328 EOF
2329 if test "$?" != 0; then
2330     echo "$cc is unable to create an executable file."
2331     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2332         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2333         echo "Only do this if you know what cross compiling means."
2334     fi
2335     die "C compiler test failed."
2336 fi
2337
2338 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2339 check_cflags -std=c99
2340 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2341 #include <stdlib.h>
2342 EOF
2343 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2344 #include <stdlib.h>
2345 EOF
2346
2347 check_host_cflags -std=c99
2348
2349 case "$arch" in
2350     alpha|ia64|mips|parisc|sparc)
2351         spic=$shared
2352     ;;
2353     x86)
2354         subarch="x86_32"
2355         check_cc <<EOF && subarch="x86_64"
2356         int test[(int)sizeof(char*) - 7];
2357 EOF
2358         if test "$subarch" = "x86_64"; then
2359             spic=$shared
2360         fi
2361     ;;
2362 esac
2363
2364 enable $subarch
2365 enabled spic && enable pic
2366
2367 # OS specific
2368 case $target_os in
2369     haiku)
2370         prefix_default="/boot/common"
2371         network_extralibs="-lnetwork"
2372         host_libs=
2373         ;;
2374     sunos)
2375         FFSERVERLDFLAGS=""
2376         SHFLAGS='-shared -Wl,-h,$$(@F)'
2377         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2378         network_extralibs="-lsocket -lnsl"
2379         add_cppflags -D__EXTENSIONS__
2380         nm_opts='-P -g'
2381         ;;
2382     netbsd)
2383         disable symver
2384         oss_indev_extralibs="-lossaudio"
2385         oss_outdev_extralibs="-lossaudio"
2386         add_cppflags -D_XOPEN_SOURCE=600
2387         ;;
2388     openbsd)
2389         enable malloc_aligned
2390         # On OpenBSD 4.5. the compiler does not use PIC unless
2391         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2392         # however the generated executable will not do anything
2393         # (simply quits with exit-code 1, no crash, no output).
2394         # Thus explicitly enable PIC here.
2395         enable pic
2396         disable symver
2397         SHFLAGS='-shared'
2398         oss_indev_extralibs="-lossaudio"
2399         oss_outdev_extralibs="-lossaudio"
2400         ;;
2401     dragonfly)
2402         enable malloc_aligned
2403         disable symver
2404         ;;
2405     freebsd)
2406         enable malloc_aligned
2407         ;;
2408     bsd/os)
2409         add_extralibs -lpoll -lgnugetopt
2410         strip="strip -d"
2411         ;;
2412     darwin)
2413         enable malloc_aligned
2414         gas="gas-preprocessor.pl $cc"
2415         enabled ppc && add_asflags -force_cpusubtype_ALL
2416         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2417         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2418         strip="${strip} -x"
2419         add_ldflags -Wl,-dynamic,-search_paths_first
2420         SLIBSUF=".dylib"
2421         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2422         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2423         FFSERVERLDFLAGS=-Wl,-bind_at_load
2424         objformat="macho"
2425         enabled x86_64 && objformat="macho64"
2426         enabled_any pic shared ||
2427             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2428         ;;
2429     mingw32*)
2430         if test $target_os = "mingw32ce"; then
2431             disable network
2432         else
2433             target_os=mingw32
2434         fi
2435         LIBTARGET=i386
2436         if enabled x86_64; then
2437             enable malloc_aligned
2438             LIBTARGET=x64
2439         elif enabled arm; then
2440             LIBTARGET=arm-wince
2441         fi
2442         shlibdir_default="$bindir_default"
2443         SLIBPREF=""
2444         SLIBSUF=".dll"
2445         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2446         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2447         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2448         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2449             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2450             install -d "$(LIBDIR)"; \
2451             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2452         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2453         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'
2454         objformat="win32"
2455         enable dos_paths
2456         check_cflags -fno-common
2457         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2458                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2459                 die "ERROR: MinGW runtime version must be >= 3.15."
2460         add_cppflags -U__STRICT_ANSI__
2461         ;;
2462     cygwin*)
2463         target_os=cygwin
2464         shlibdir_default="$bindir_default"
2465         SLIBPREF="cyg"
2466         SLIBSUF=".dll"
2467         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2468         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2469         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2470         objformat="win32"
2471         enable dos_paths
2472         check_cflags -fno-common
2473         ;;
2474     *-dos|freedos|opendos)
2475         network_extralibs="-lsocket"
2476         objformat="coff"
2477         enable dos_paths
2478         ;;
2479     linux)
2480         enable dv1394
2481         ;;
2482     irix*)
2483         target_os=irix
2484         ranlib="echo ignoring ranlib"
2485         ;;
2486     os/2*)
2487         strip="lxlite -CS"
2488         ln_s="cp -f"
2489         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2490         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2491         FFSERVERLDFLAGS=""
2492         LIBSUF="_s.a"
2493         SLIBPREF=""
2494         SLIBSUF=".dll"
2495         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2496         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2497         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2498           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2499           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2500           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2501           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2502           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2503         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2504           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2505         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2506         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2507         enable dos_paths
2508         ;;
2509     gnu/kfreebsd)
2510         ;;
2511     gnu)
2512         ;;
2513     qnx)
2514         add_cppflags -D_QNX_SOURCE
2515         network_extralibs="-lsocket"
2516         ;;
2517     symbian)
2518         SLIBSUF=".dll"
2519         enable dos_paths
2520         add_cflags --include=$sysinclude/gcce/gcce.h
2521         ;;
2522     none)
2523         ;;
2524     *)
2525         die "Unknown OS '$target_os'."
2526         ;;
2527 esac
2528
2529 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2530
2531 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2532
2533 set_default $PATHS_LIST
2534
2535 # we need to build at least one lib type
2536 if ! enabled_any static shared; then
2537     cat <<EOF
2538 At least one library type must be built.
2539 Specify --enable-static to build the static libraries or --enable-shared to
2540 build the shared libraries as well. To only build the shared libraries specify
2541 --disable-static in addition to --enable-shared.
2542 EOF
2543     exit 1;
2544 fi
2545
2546 disabled static && LIBNAME=""
2547
2548 die_license_disabled() {
2549     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2550 }
2551
2552 die_license_disabled gpl libx264
2553 die_license_disabled gpl libxavs
2554 die_license_disabled gpl libxvid
2555 die_license_disabled gpl postproc
2556 die_license_disabled gpl x11grab
2557
2558 die_license_disabled nonfree libfaac
2559
2560 die_license_disabled version3 libopencore_amrnb
2561 die_license_disabled version3 libopencore_amrwb
2562 die_license_disabled version3 libvo_aacenc
2563 die_license_disabled version3 libvo_amrwbenc
2564
2565 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2566
2567 disabled optimizations || check_cflags -fomit-frame-pointer
2568
2569 enable_pic() {
2570     enable pic
2571     add_cppflags -DPIC
2572     add_cflags   -fPIC
2573     add_asflags  -fPIC
2574 }
2575
2576 enabled pic && enable_pic
2577
2578 check_cc <<EOF || die "Symbol mangling check failed."
2579 int ff_extern;
2580 EOF
2581 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2582 extern_prefix=${sym%%ff_extern*}
2583
2584 check_cc <<EOF && enable inline_asm
2585 void foo(void) { __asm__ volatile ("" ::); }
2586 EOF
2587
2588 _restrict=
2589 for restrict_keyword in restrict __restrict__ __restrict; do
2590     check_cc <<EOF && _restrict=$restrict_keyword && break
2591 void foo(char * $restrict_keyword p);
2592 EOF
2593 done
2594
2595 check_cc <<EOF && enable attribute_packed
2596 struct { int x; } __attribute__((packed)) x;
2597 EOF
2598
2599 check_cc <<EOF && enable attribute_may_alias
2600 union { int x; } __attribute__((may_alias)) x;
2601 EOF
2602
2603 check_cc <<EOF || die "endian test failed"
2604 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2605 EOF
2606 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2607
2608 if enabled alpha; then
2609
2610     check_cflags -mieee
2611
2612 elif enabled arm; then
2613
2614     check_cflags -marm
2615     nogas=die
2616
2617     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2618         enable vfp_args
2619     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2620         case "${cross_prefix:-$cc}" in
2621             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2622             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2623 __asm__ (".eabi_attribute 28, 1");
2624 int main(void) { return 0; }
2625 EOF
2626         esac
2627         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2628     fi
2629
2630     # We have to check if pld is a nop and disable it.
2631     check_asm pld '"pld [r0]"'
2632
2633     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2634     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2635     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2636     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2637     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2638     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2639
2640     enabled_all armv6t2 shared !pic && enable_pic
2641
2642 elif enabled mips; then
2643
2644     check_asm loongson '"dmult.g $1, $2, $3"'
2645     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2646
2647 elif enabled ppc; then
2648
2649     enable local_aligned_8 local_aligned_16
2650
2651     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2652     check_asm ibm_asm   '"add 0, 0, 0"'
2653     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2654     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2655
2656     # AltiVec flags: The FSF version of GCC differs from the Apple version
2657     if enabled altivec; then
2658         nogas=warn
2659         check_cflags -maltivec -mabi=altivec &&
2660         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2661         check_cflags -faltivec
2662
2663         # check if our compiler supports Motorola AltiVec C API
2664         check_cc <<EOF || disable altivec
2665 $inc_altivec_h
2666 int main(void) {
2667     vector signed int v1, v2, v3;
2668     v1 = vec_add(v2,v3);
2669     return 0;
2670 }
2671 EOF
2672
2673         # check if our compiler supports braces for vector declarations
2674         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2675 $inc_altivec_h
2676 int main (void) { (vector int) {1}; return 0; }
2677 EOF
2678     fi
2679
2680 elif enabled sparc; then
2681
2682     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2683         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2684
2685 elif enabled x86; then
2686
2687     enable local_aligned_8 local_aligned_16
2688
2689     # check whether EBP is available on x86
2690     # As 'i' is stored on the stack, this program will crash
2691     # if the base pointer is used to access it because the
2692     # base pointer is cleared in the inline assembly code.
2693     check_exec_crash <<EOF && enable ebp_available
2694     volatile int i=0;
2695     __asm__ volatile (
2696         "xorl %%ebp, %%ebp"
2697     ::: "%ebp");
2698     return i;
2699 EOF
2700
2701     # check whether EBX is available on x86
2702     check_asm ebx_available '""::"b"(0)' &&
2703         check_asm ebx_available '"":::"%ebx"'
2704
2705     # check whether xmm clobbers are supported
2706     check_asm xmm_clobbers '"":::"%xmm0"'
2707
2708     # check whether more than 10 operands are supported
2709     check_cc <<EOF && enable ten_operands
2710 int main(void) {
2711     int x=0;
2712     __asm__ volatile(
2713         ""
2714         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2715     );
2716     return 0;
2717 }
2718 EOF
2719
2720     # check whether binutils is new enough to compile SSSE3/MMX2
2721     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2722     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2723
2724     check_asm bswap '"bswap %%eax" ::: "%eax"'
2725
2726     if ! disabled_any asm mmx yasm; then
2727         if check_cmd $yasmexe --version; then
2728             enabled x86_64 && yasm_extra="-m amd64"
2729             yasm_debug="-g dwarf2"
2730         elif check_cmd nasm -v; then
2731             yasmexe=nasm
2732             yasm_debug="-g -F dwarf"
2733             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2734         fi
2735
2736         YASMFLAGS="-f $objformat $yasm_extra"
2737         enabled pic               && append YASMFLAGS "-DPIC"
2738         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2739         case "$objformat" in
2740             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2741         esac
2742
2743         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2744             die "yasm not found, use --disable-yasm for a crippled build"
2745         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2746     fi
2747
2748     case "$cpu" in
2749         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2750             disable fast_clz
2751         ;;
2752     esac
2753
2754 fi
2755
2756 if enabled asm; then
2757     as=${gas:=$as}
2758     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2759         $nogas "GNU assembler not found, install gas-preprocessor"
2760 fi
2761
2762 check_ldflags -Wl,--as-needed
2763
2764 if check_func dlopen; then
2765     ldl=
2766 elif check_func dlopen -ldl; then
2767     ldl=-ldl
2768 fi
2769
2770 if enabled network; then
2771     check_type "sys/types.h sys/socket.h" socklen_t
2772     check_type netdb.h "struct addrinfo"
2773     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2774     check_type netinet/in.h "struct sockaddr_in6"
2775     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2776     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2777     # Prefer arpa/inet.h over winsock2
2778     if check_header arpa/inet.h ; then
2779         check_func closesocket
2780     elif check_header winsock2.h ; then
2781         check_func_headers winsock2.h closesocket -lws2 && \
2782             network_extralibs="-lws2" || \
2783         { check_func_headers winsock2.h closesocket -lws2_32 && \
2784             network_extralibs="-lws2_32"; }
2785         check_type ws2tcpip.h socklen_t
2786         check_type ws2tcpip.h "struct addrinfo"
2787         check_type ws2tcpip.h "struct ipv6_mreq"
2788         check_type ws2tcpip.h "struct sockaddr_in6"
2789         check_type ws2tcpip.h "struct sockaddr_storage"
2790         check_struct winsock2.h "struct sockaddr" sa_len
2791     else
2792         disable network
2793     fi
2794 fi
2795
2796 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2797 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2798
2799 check_func  fcntl
2800 check_func  fork
2801 check_func  getaddrinfo $network_extralibs
2802 check_func  gethrtime
2803 check_func  getrusage
2804 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2805 check_func  inet_aton $network_extralibs
2806 check_func  isatty
2807 check_func  localtime_r
2808 check_func  ${malloc_prefix}memalign            && enable memalign
2809 check_func  mkstemp
2810 check_func  mmap
2811 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2812 check_func  setrlimit
2813 check_func  strerror_r
2814 check_func  strtok_r
2815 check_func_headers conio.h kbhit
2816 check_func_headers io.h setmode
2817 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2818 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2819 check_func_headers windows.h GetProcessTimes
2820 check_func_headers windows.h MapViewOfFile
2821 check_func_headers windows.h VirtualAlloc
2822
2823 check_header dlfcn.h
2824 check_header dxva2api.h
2825 check_header libcrystalhd/libcrystalhd_if.h
2826 check_header malloc.h
2827 check_header poll.h
2828 check_header sys/mman.h
2829 check_header sys/resource.h
2830 check_header sys/select.h
2831 check_header termios.h
2832 check_header vdpau/vdpau.h
2833 check_header vdpau/vdpau_x11.h
2834 check_header X11/extensions/XvMClib.h
2835
2836 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2837
2838 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2839      enabled_any $need_memalign ; then
2840     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2841 fi
2842
2843 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2844 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2845
2846 # check for some common methods of building with pthread support
2847 # do this before the optional library checks as some of them require pthreads
2848 if ! disabled pthreads && ! enabled w32threads; then
2849     enable pthreads
2850     if check_func pthread_create; then
2851         :
2852     elif check_func pthread_create -pthread; then
2853         add_cflags -pthread
2854         add_extralibs -pthread
2855     elif check_func pthread_create -pthreads; then
2856         add_cflags -pthreads
2857         add_extralibs -pthreads
2858     elif check_func pthread_create -lpthreadGC2; then
2859         add_extralibs -lpthreadGC2
2860     elif ! check_lib pthread.h pthread_create -lpthread; then
2861         disable pthreads
2862     fi
2863 fi
2864
2865 for thread in $THREADS_LIST; do
2866     if enabled $thread; then
2867         test -n "$thread_type" &&
2868             die "ERROR: Only one thread type must be selected." ||
2869             thread_type="$thread"
2870     fi
2871 done
2872
2873 check_lib math.h sin -lm
2874 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2875 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2876
2877 check_mathfunc exp2
2878 check_mathfunc exp2f
2879 check_mathfunc llrint
2880 check_mathfunc llrintf
2881 check_mathfunc log2
2882 check_mathfunc log2f
2883 check_mathfunc lrint
2884 check_mathfunc lrintf
2885 check_mathfunc round
2886 check_mathfunc roundf
2887 check_mathfunc truncf
2888
2889 # these are off by default, so fail if requested and not available
2890 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2891 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2892 enabled libdirac   && require_pkg_config dirac                          \
2893     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2894     "dirac_decoder_init dirac_encoder_init"
2895 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2896 enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2897 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2898 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2899 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2900 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2901 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2902 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2903 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2904 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2905 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2906 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2907 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2908 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2909 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2910 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2911 enabled libvpx     && {
2912     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2913                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2914     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2915                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2916 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2917                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2918                         die "ERROR: libx264 version must be >= 0.99."; }
2919 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2920 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2921 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2922
2923 # libdc1394 check
2924 if enabled libdc1394; then
2925     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2926         enable libdc1394_2; } ||
2927     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2928         enable libdc1394_1; } ||
2929     die "ERROR: No version of libdc1394 found "
2930 fi
2931
2932 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2933     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2934     enable sdl &&
2935     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2936 fi
2937
2938 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2939
2940 check_header linux/fb.h
2941 check_header linux/videodev.h
2942 check_header linux/videodev2.h
2943 check_header sys/videoio.h
2944
2945 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2946 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2947 # w32api 3.12 had it defined wrong
2948 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2949
2950 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2951 { check_header dev/bktr/ioctl_meteor.h &&
2952   check_header dev/bktr/ioctl_bt848.h; } ||
2953 { check_header machine/ioctl_meteor.h &&
2954   check_header machine/ioctl_bt848.h; } ||
2955 { check_header dev/video/meteor/ioctl_meteor.h &&
2956   check_header dev/video/bktr/ioctl_bt848.h; } ||
2957 check_header dev/ic/bt8xx.h
2958
2959 check_header sndio.h
2960 check_header sys/soundcard.h
2961 check_header soundcard.h
2962
2963 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2964
2965 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2966
2967 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2968
2969 enabled x11grab                         &&
2970 check_header X11/Xlib.h                 &&
2971 check_header X11/extensions/XShm.h      &&
2972 check_header X11/extensions/Xfixes.h    &&
2973 check_func XOpenDisplay -lX11           &&
2974 check_func XShmCreateImage -lX11 -lXext &&
2975 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2976
2977 if ! disabled vaapi; then
2978     check_lib va/va.h vaInitialize -lva && {
2979         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2980         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
2981     } || disable vaapi
2982 fi
2983
2984 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2985 check_cpp_condition \
2986     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2987     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2988       disable vdpau; }
2989 fi
2990
2991 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2992
2993 # add some useful compiler flags if supported
2994 check_cflags -Wdeclaration-after-statement
2995 check_cflags -Wall
2996 check_cflags -Wno-parentheses
2997 check_cflags -Wno-switch
2998 check_cflags -Wdisabled-optimization
2999 check_cflags -Wpointer-arith
3000 check_cflags -Wredundant-decls
3001 check_cflags -Wno-pointer-sign
3002 check_cflags -Wcast-qual
3003 check_cflags -Wwrite-strings
3004 check_cflags -Wtype-limits
3005 check_cflags -Wundef
3006 check_cflags -Wmissing-prototypes
3007 enabled extra_warnings && check_cflags -Winline
3008
3009 # add some linker flags
3010 check_ldflags -Wl,--warn-common
3011 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
3012 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3013
3014 echo "X{};" > $TMPV
3015 if test_ldflags -Wl,--version-script,$TMPV; then
3016     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3017     check_cc <<EOF && enable symver_asm_label
3018 void ff_foo(void) __asm__ ("av_foo@VERSION");
3019 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3020 EOF
3021     check_cc <<EOF && enable symver_gnu_asm
3022 __asm__(".symver ff_foo,av_foo@VERSION");
3023 void ff_foo(void) {}
3024 EOF
3025 fi
3026
3027 if enabled small; then
3028     add_cflags $size_cflags
3029     optimizations="small"
3030 elif enabled optimizations; then
3031     add_cflags $speed_cflags
3032 else
3033     add_cflags $noopt_cflags
3034 fi
3035 check_cflags -fno-math-errno
3036 check_cflags -fno-signed-zeros
3037
3038 if enabled icc; then
3039     # Just warnings, no remarks
3040     check_cflags -w1
3041     # -wd: Disable following warnings
3042     # 144, 167, 556: -Wno-pointer-sign
3043     # 1292: attribute "foo" ignored
3044     # 10006: ignoring unknown option -fno-signed-zeros
3045     # 10148: ignoring unknown option -Wno-parentheses
3046     # 10156: ignoring option '-W'; no argument required
3047     check_cflags -wd144,167,556,1292,10006,10148,10156
3048     # 11030: Warning unknown option --as-needed
3049     # 10156: ignoring option '-export'; no argument required
3050     check_ldflags -wd10156,11030
3051     # Allow to compile with optimizations
3052     check_ldflags -march=$cpu
3053     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3054     enable ebp_available
3055     if enabled x86_32; then
3056         test ${icc_version%%.*} -ge 11 && \
3057             check_cflags -falign-stack=maintain-16-byte || \
3058             disable aligned_stack
3059     fi
3060 elif enabled ccc; then
3061     # disable some annoying warnings
3062     add_cflags -msg_disable cvtu32to64
3063     add_cflags -msg_disable embedcomment
3064     add_cflags -msg_disable needconstext
3065     add_cflags -msg_disable nomainieee
3066     add_cflags -msg_disable ptrmismatch1
3067     add_cflags -msg_disable unreachcode
3068 elif enabled gcc; then
3069     check_cflags -fno-tree-vectorize
3070     check_cflags -Werror=implicit-function-declaration
3071     check_cflags -Werror=missing-prototypes
3072 elif enabled llvm_gcc; then
3073     check_cflags -mllvm -stack-alignment=16
3074 elif enabled clang; then
3075     check_cflags -mllvm -stack-alignment=16
3076     check_cflags -Qunused-arguments
3077 elif enabled armcc; then
3078     # 2523: use of inline assembler is deprecated
3079     add_cflags -W${armcc_opt},--diag_suppress=2523
3080     add_cflags -W${armcc_opt},--diag_suppress=1207
3081     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3082     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3083 elif enabled tms470; then
3084     add_cflags -pds=824 -pds=837
3085 elif enabled pathscale; then
3086     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3087 fi
3088
3089 enabled_any $THREADS_LIST      && enable threads
3090
3091 check_deps $CONFIG_LIST       \
3092            $CONFIG_EXTRA      \
3093            $HAVE_LIST         \
3094            $DECODER_LIST      \
3095            $ENCODER_LIST      \
3096            $HWACCEL_LIST      \
3097            $PARSER_LIST       \
3098            $BSF_LIST          \
3099            $DEMUXER_LIST      \
3100            $MUXER_LIST        \
3101            $FILTER_LIST       \
3102            $INDEV_LIST        \
3103            $OUTDEV_LIST       \
3104            $PROTOCOL_LIST     \
3105            $ACODEC_TESTS      \
3106            $VCODEC_TESTS      \
3107            $LAVF_TESTS        \
3108            $LAVFI_TESTS       \
3109            $SEEK_TESTS        \
3110
3111 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3112
3113 echo "install prefix            $prefix"
3114 echo "source path               $source_path"
3115 echo "C compiler                $cc"
3116 echo "ARCH                      $arch ($cpu)"
3117 if test "$build_suffix" != ""; then
3118     echo "build suffix              $build_suffix"
3119 fi
3120 if test "$extra_version" != ""; then
3121     echo "version string suffix     $extra_version"
3122 fi
3123 echo "big-endian                ${bigendian-no}"
3124 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3125 if enabled x86; then
3126     echo "yasm                      ${yasm-no}"
3127     echo "MMX enabled               ${mmx-no}"
3128     echo "MMX2 enabled              ${mmx2-no}"
3129     echo "3DNow! enabled            ${amd3dnow-no}"
3130     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3131     echo "SSE enabled               ${sse-no}"
3132     echo "SSSE3 enabled             ${ssse3-no}"
3133     echo "CMOV enabled              ${cmov-no}"
3134     echo "CMOV is fast              ${fast_cmov-no}"
3135     echo "EBX available             ${ebx_available-no}"
3136     echo "EBP available             ${ebp_available-no}"
3137     echo "10 operands supported     ${ten_operands-no}"
3138 fi
3139 if enabled arm; then
3140     echo "ARMv5TE enabled           ${armv5te-no}"
3141     echo "ARMv6 enabled             ${armv6-no}"
3142     echo "ARMv6T2 enabled           ${armv6t2-no}"
3143     echo "ARM VFP enabled           ${armvfp-no}"
3144     echo "IWMMXT enabled            ${iwmmxt-no}"
3145     echo "NEON enabled              ${neon-no}"
3146 fi
3147 if enabled mips; then
3148     echo "MMI enabled               ${mmi-no}"
3149 fi
3150 if enabled ppc; then
3151     echo "AltiVec enabled           ${altivec-no}"
3152     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3153     echo "dcbzl available           ${dcbzl-no}"
3154 fi
3155 if enabled sparc; then
3156     echo "VIS enabled               ${vis-no}"
3157 fi
3158 echo "debug symbols             ${debug-no}"
3159 echo "strip symbols             ${stripping-no}"
3160 echo "optimizations             ${optimizations-no}"
3161 echo "static                    ${static-no}"
3162 echo "shared                    ${shared-no}"
3163 echo "postprocessing support    ${postproc-no}"
3164 echo "new filter support        ${avfilter-no}"
3165 echo "network support           ${network-no}"
3166 echo "threading support         ${thread_type-no}"
3167 echo "SDL support               ${sdl-no}"
3168 echo "Sun medialib support      ${mlib-no}"
3169 echo "AVISynth enabled          ${avisynth-no}"
3170 echo "frei0r enabled            ${frei0r-no}"
3171 echo "libdc1394 support         ${libdc1394-no}"
3172 echo "libdirac enabled          ${libdirac-no}"
3173 echo "libfaac enabled           ${libfaac-no}"
3174 echo "libgsm enabled            ${libgsm-no}"
3175 echo "libmp3lame enabled        ${libmp3lame-no}"
3176 echo "libnut enabled            ${libnut-no}"
3177 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3178 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3179 echo "libopencv support         ${libopencv-no}"
3180 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3181 echo "librtmp enabled           ${librtmp-no}"
3182 echo "libschroedinger enabled   ${libschroedinger-no}"
3183 echo "libspeex enabled          ${libspeex-no}"
3184 echo "libtheora enabled         ${libtheora-no}"
3185 echo "libva enabled             ${vaapi-no}"
3186 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3187 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3188 echo "libvorbis enabled         ${libvorbis-no}"
3189 echo "libvpx enabled            ${libvpx-no}"
3190 echo "libx264 enabled           ${libx264-no}"
3191 echo "libxavs enabled           ${libxavs-no}"
3192 echo "libxvid enabled           ${libxvid-no}"
3193 echo "zlib enabled              ${zlib-no}"
3194 echo "bzlib enabled             ${bzlib-no}"
3195 echo
3196
3197 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3198     echo "Enabled ${type}s:"
3199     eval list=\$$(toupper $type)_LIST
3200     print_enabled '_*' $list | sort | pr -r -3 -t
3201     echo
3202 done
3203
3204 license="LGPL version 2.1 or later"
3205 if enabled nonfree; then
3206     license="nonfree and unredistributable"
3207 elif enabled gplv3; then
3208     license="GPL version 3 or later"
3209 elif enabled lgplv3; then
3210     license="LGPL version 3 or later"
3211 elif enabled gpl; then
3212     license="GPL version 2 or later"
3213 fi
3214
3215 echo "License: $license"
3216
3217 echo "Creating config.mak and config.h..."
3218
3219 # build tree in object directory if source path is different from current one
3220 if enabled source_path_used; then
3221     DIRS="
3222         doc
3223         libavcodec
3224         libavcodec/$arch
3225         libavdevice
3226         libavfilter
3227         libavfilter/$arch
3228         libavfilter/libmpcodecs
3229         libavfilter/libmpcodecs/libvo
3230         libavformat
3231         libavutil
3232         libavutil/$arch
3233         libpostproc
3234         libswscale
3235         libswscale/$arch
3236         tests
3237         tools
3238     "
3239     FILES="
3240         Makefile
3241         common.mak
3242         subdir.mak
3243         doc/texi2pod.pl
3244         libavcodec/Makefile
3245         libavcodec/${arch}/Makefile
3246         libavdevice/Makefile
3247         libavfilter/Makefile
3248         libavfilter/${arch}/Makefile
3249         libavformat/Makefile
3250         libavutil/Makefile
3251         libpostproc/Makefile
3252         libswscale/Makefile
3253     "
3254     map 'mkdir -p $v' $DIRS;
3255     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3256 fi
3257
3258 enabled stripping || strip="echo skipping strip"
3259
3260 config_files="$TMPH config.mak"
3261
3262 cat > config.mak <<EOF
3263 # Automatically generated by configure - do not modify!
3264 ifndef FFMPEG_CONFIG_MAK
3265 FFMPEG_CONFIG_MAK=1
3266 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3267 prefix=$prefix
3268 LIBDIR=\$(DESTDIR)$libdir
3269 SHLIBDIR=\$(DESTDIR)$shlibdir
3270 INCDIR=\$(DESTDIR)$incdir
3271 BINDIR=\$(DESTDIR)$bindir
3272 DATADIR=\$(DESTDIR)$datadir
3273 MANDIR=\$(DESTDIR)$mandir
3274 SRC_PATH="$source_path"
3275 SRC_PATH_BARE=$source_path
3276 BUILD_ROOT="$PWD"
3277 CC_IDENT=$cc_ident
3278 ARCH=$arch
3279 CC=$cc
3280 AS=$as
3281 LD=$ld
3282 DEPCC=$dep_cc
3283 YASM=$yasmexe
3284 YASMDEP=$yasmexe
3285 AR=$ar
3286 RANLIB=$ranlib
3287 CP=cp -p
3288 LN_S=$ln_s
3289 STRIP=$strip
3290 CPPFLAGS=$CPPFLAGS
3291 CFLAGS=$CFLAGS
3292 ASFLAGS=$ASFLAGS
3293 CC_O=$CC_O
3294 LDFLAGS=$LDFLAGS
3295 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3296 SHFLAGS=$SHFLAGS
3297 YASMFLAGS=$YASMFLAGS
3298 BUILDSUF=$build_suffix
3299 FULLNAME=$FULLNAME
3300 LIBPREF=$LIBPREF
3301 LIBSUF=$LIBSUF
3302 LIBNAME=$LIBNAME
3303 SLIBPREF=$SLIBPREF
3304 SLIBSUF=$SLIBSUF
3305 EXESUF=$EXESUF
3306 EXTRA_VERSION=$extra_version
3307 DEPFLAGS=$DEPFLAGS
3308 CCDEP=$CCDEP
3309 ASDEP=$ASDEP
3310 CC_DEPFLAGS=$CC_DEPFLAGS
3311 AS_DEPFLAGS=$AS_DEPFLAGS
3312 HOSTCC=$host_cc
3313 HOSTCFLAGS=$host_cflags
3314 HOSTEXESUF=$HOSTEXESUF
3315 HOSTLDFLAGS=$host_ldflags
3316 HOSTLIBS=$host_libs
3317 TARGET_EXEC=$target_exec
3318 TARGET_PATH=$target_path
3319 SDL_LIBS=$sdl_libs
3320 SDL_CFLAGS=$sdl_cflags
3321 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3322 EXTRALIBS=$extralibs
3323 INSTALL=install
3324 LIBTARGET=${LIBTARGET}
3325 SLIBNAME=${SLIBNAME}
3326 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3327 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3328 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3329 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3330 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3331 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3332 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3333 EOF
3334
3335 get_version(){
3336     name=$1
3337     file=$source_path/$2
3338     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3339     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3340     lcname=$(tolower $name)
3341     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3342     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3343 }
3344
3345 get_version LIBSWSCALE  libswscale/swscale.h
3346 get_version LIBPOSTPROC libpostproc/postprocess.h
3347 get_version LIBAVCODEC  libavcodec/version.h
3348 get_version LIBAVDEVICE libavdevice/avdevice.h
3349 get_version LIBAVFORMAT libavformat/version.h
3350 get_version LIBAVUTIL   libavutil/avutil.h
3351 get_version LIBAVFILTER libavfilter/avfilter.h
3352
3353 cat > $TMPH <<EOF
3354 /* Automatically generated by configure - do not modify! */
3355 #ifndef FFMPEG_CONFIG_H
3356 #define FFMPEG_CONFIG_H
3357 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3358 #define FFMPEG_LICENSE "$(c_escape $license)"
3359 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3360 #define CC_TYPE "$cc_type"
3361 #define CC_VERSION $cc_version
3362 #define restrict $_restrict
3363 #define EXTERN_PREFIX "${extern_prefix}"
3364 #define EXTERN_ASM ${extern_prefix}
3365 #define SLIBSUF "$SLIBSUF"
3366 EOF
3367
3368 test -n "$malloc_prefix" &&
3369     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3370
3371 if enabled small || disabled optimizations; then
3372     echo "#undef  av_always_inline"  >> $TMPH
3373     if enabled small; then
3374         echo "#define av_always_inline inline"  >> $TMPH
3375     else
3376         echo "#define av_always_inline av_unused"  >> $TMPH
3377     fi
3378 fi
3379
3380 if enabled yasm; then
3381     append config_files $TMPASM
3382     printf '' >$TMPASM
3383 fi
3384
3385 print_config ARCH_   "$config_files" $ARCH_LIST
3386 print_config HAVE_   "$config_files" $HAVE_LIST
3387 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3388                                      $CONFIG_EXTRA      \
3389                                      $DECODER_LIST      \
3390                                      $ENCODER_LIST      \
3391                                      $HWACCEL_LIST      \
3392                                      $PARSER_LIST       \
3393                                      $BSF_LIST          \
3394                                      $DEMUXER_LIST      \
3395                                      $MUXER_LIST        \
3396                                      $FILTER_LIST       \
3397                                      $PROTOCOL_LIST     \
3398                                      $INDEV_LIST        \
3399                                      $OUTDEV_LIST       \
3400
3401 cat >>config.mak <<EOF
3402 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3403 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3404 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3405 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3406 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3407 EOF
3408
3409 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3410 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3411
3412 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3413 cp_if_changed $TMPH config.h
3414 touch .config
3415
3416 enabled yasm && cp_if_changed $TMPASM config.asm
3417
3418 cat > $TMPH <<EOF
3419 /* Generated by ffconf */
3420 #ifndef AVUTIL_AVCONFIG_H
3421 #define AVUTIL_AVCONFIG_H
3422 EOF
3423
3424 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3425
3426 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3427
3428 cp_if_changed $TMPH libavutil/avconfig.h
3429
3430 test -n "$WARNINGS" && printf "\n$WARNINGS"
3431
3432 # build pkg-config files
3433
3434 pkgconfig_generate(){
3435 name=$1
3436 shortname=${name#lib}${build_suffix}
3437 comment=$2
3438 version=$3
3439 libs=$4
3440 requires=$5
3441 enabled ${name#lib} || return 0
3442 cat <<EOF > $name/$name.pc
3443 prefix=$prefix
3444 exec_prefix=\${prefix}
3445 libdir=$libdir
3446 includedir=$incdir
3447
3448 Name: $name
3449 Description: $comment
3450 Version: $version
3451 Requires: $(enabled shared || echo $requires)
3452 Requires.private: $(enabled shared && echo $requires)
3453 Conflicts:
3454 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3455 Libs.private: $(enabled shared && echo $libs)
3456 Cflags: -I\${includedir}
3457 EOF
3458 cat <<EOF > $name/$name-uninstalled.pc
3459 prefix=
3460 exec_prefix=
3461 libdir=\${pcfiledir}
3462 includedir=${source_path}
3463
3464 Name: $name
3465 Description: $comment
3466 Version: $version
3467 Requires: $requires
3468 Conflicts:
3469 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3470 Cflags: -I\${includedir}
3471 EOF
3472 }
3473
3474 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3475 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3476 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3477 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3478 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3479 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3480 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"