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-libvorbis       enable Vorbis encoding via libvorbis,
 183                            native implementation exists [no]
 184   --enable-libvpx          enable VP8 support via libvpx [no]
 185   --enable-libx264         enable H.264 encoding via x264 [no]
 186   --enable-libxavs         enable AVS encoding via xavs [no]
 187   --enable-libxvid         enable Xvid encoding via xvidcore,
 188                            native MPEG-4/Xvid encoder exists [no]
 189   --enable-mlib            enable Sun medialib [no]
 190   --enable-zlib            enable zlib [autodetect]
 191
 192 Advanced options (experts only):
 193   --source-path=PATH       path to source code [$source_path]
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --disable-asm            disable all assembler optimizations
 219   --disable-altivec        disable AltiVec optimizations
 220   --disable-amd3dnow       disable 3DNow! optimizations
 221   --disable-amd3dnowext    disable 3DNow! extended optimizations
 222   --disable-mmx            disable MMX optimizations
 223   --disable-mmx2           disable MMX2 optimizations
 224   --disable-sse            disable SSE optimizations
 225   --disable-ssse3          disable SSSE3 optimizations
 226   --disable-avx            disable AVX optimizations
 227   --disable-armv5te        disable armv5te optimizations
 228   --disable-armv6          disable armv6 optimizations
 229   --disable-armv6t2        disable armv6t2 optimizations
 230   --disable-armvfp         disable ARM VFP optimizations
 231   --disable-iwmmxt         disable iwmmxt optimizations
 232   --disable-mmi            disable MMI optimizations
 233   --disable-neon           disable neon optimizations
 234   --disable-vis            disable VIS optimizations
 235   --disable-yasm           disable use of yasm assembler
 236   --enable-pic             build position-independent code
 237   --malloc-prefix=PFX      prefix malloc and related names with PFX
 238   --enable-sram            allow use of on-chip SRAM
 239   --disable-symver         disable symbol versioning
 240
 241 Developer options (useful when working on FFmpeg itself):
 242   --disable-debug          disable debugging symbols
 243   --enable-debug=LEVEL     set the debug level [$debuglevel]
 244   --disable-optimizations  disable compiler optimizations
 245   --enable-extra-warnings  enable more compiler warnings
 246   --samples=PATH           location of test samples for FATE, if not set use
 247                            \$FATE_SAMPLES at make invocation time.
 248
 249 NOTE: Object files are built at the place where configure is launched.
 250 EOF
 251   exit 0
 252 }
 253
 254 quotes='""'
 255
 256 log(){
 257     echo "$@" >> $logfile
 258 }
 259
 260 log_file(){
 261     log BEGIN $1
 262     pr -n -t $1 >> $logfile
 263     log END $1
 264 }
 265
 266 echolog(){
 267     log "$@"
 268     echo "$@"
 269 }
 270
 271 warn(){
 272     log "WARNING: $*"
 273     WARNINGS="${WARNINGS}WARNING: $*\n"
 274 }
 275
 276 die(){
 277     echolog "$@"
 278     cat <<EOF
 279
 280 If you think configure made a mistake, make sure you are using the latest
 281 version from Git.  If the latest version fails, report the problem to the
 282 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 283 EOF
 284     if disabled logging; then
 285         cat <<EOF
 286 Rerun configure with logging enabled (do not use --disable-logging), and
 287 include the log this produces with your report.
 288 EOF
 289     else
 290 cat <<EOF
 291 Include the log file "$logfile" produced by configure as this will help
 292 solving the problem.
 293 EOF
 294     fi
 295     exit 1
 296 }
 297
 298 # Avoid locale weirdness, besides we really just want to translate ASCII.
 299 toupper(){
 300     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 301 }
 302
 303 tolower(){
 304     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 305 }
 306
 307 c_escape(){
 308     echo "$*" | sed 's/["\\]/\\\0/g'
 309 }
 310
 311 sh_quote(){
 312     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 313     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 314     echo "$v"
 315 }
 316
 317 cleanws(){
 318     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 319 }
 320
 321 filter(){
 322     pat=$1
 323     shift
 324     for v; do
 325         eval "case $v in $pat) echo $v ;; esac"
 326     done
 327 }
 328
 329 filter_out(){
 330     pat=$1
 331     shift
 332     for v; do
 333         eval "case $v in $pat) ;; *) echo $v ;; esac"
 334     done
 335 }
 336
 337 map(){
 338     m=$1
 339     shift
 340     for v; do eval $m; done
 341 }
 342
 343 set_all(){
 344     value=$1
 345     shift
 346     for var in $*; do
 347         eval $var=$value
 348     done
 349 }
 350
 351 set_weak(){
 352     value=$1
 353     shift
 354     for var; do
 355         eval : \${$var:=$value}
 356     done
 357 }
 358
 359 set_safe(){
 360     var=$1
 361     shift
 362     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 363 }
 364
 365 get_safe(){
 366     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 367 }
 368
 369 pushvar(){
 370     for var in $*; do
 371         eval level=\${${var}_level:=0}
 372         eval ${var}_${level}="\$$var"
 373         eval ${var}_level=$(($level+1))
 374     done
 375 }
 376
 377 popvar(){
 378     for var in $*; do
 379         eval level=\${${var}_level:-0}
 380         test $level = 0 && continue
 381         eval level=$(($level-1))
 382         eval $var="\${${var}_${level}}"
 383         eval ${var}_level=$level
 384         eval unset ${var}_${level}
 385     done
 386 }
 387
 388 enable(){
 389     set_all yes $*
 390 }
 391
 392 disable(){
 393     set_all no $*
 394 }
 395
 396 enable_weak(){
 397     set_weak yes $*
 398 }
 399
 400 disable_weak(){
 401     set_weak no $*
 402 }
 403
 404 enable_safe(){
 405     for var; do
 406         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 407     done
 408 }
 409
 410 disable_safe(){
 411     for var; do
 412         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 413     done
 414 }
 415
 416 do_enable_deep(){
 417     for var; do
 418         enabled $var && continue
 419         eval sel="\$${var}_select"
 420         eval sgs="\$${var}_suggest"
 421         pushvar var sgs
 422         enable_deep $sel
 423         popvar sgs
 424         enable_deep_weak $sgs
 425         popvar var
 426     done
 427 }
 428
 429 enable_deep(){
 430     do_enable_deep $*
 431     enable $*
 432 }
 433
 434 enable_deep_weak(){
 435     do_enable_deep $*
 436     enable_weak $*
 437 }
 438
 439 enabled(){
 440     test "${1#!}" = "$1" && op== || op=!=
 441     eval test "x\$${1#!}" $op "xyes"
 442 }
 443
 444 disabled(){
 445     test "${1#!}" = "$1" && op== || op=!=
 446     eval test "x\$${1#!}" $op "xno"
 447 }
 448
 449 enabled_all(){
 450     for opt; do
 451         enabled $opt || return 1
 452     done
 453 }
 454
 455 disabled_all(){
 456     for opt; do
 457         disabled $opt || return 1
 458     done
 459 }
 460
 461 enabled_any(){
 462     for opt; do
 463         enabled $opt && return 0
 464     done
 465 }
 466
 467 disabled_any(){
 468     for opt; do
 469         disabled $opt && return 0
 470     done
 471     return 1
 472 }
 473
 474 set_default(){
 475     for opt; do
 476         eval : \${$opt:=\$${opt}_default}
 477     done
 478 }
 479
 480 is_in(){
 481     value=$1
 482     shift
 483     for var in $*; do
 484         [ $var = $value ] && return 0
 485     done
 486     return 1
 487 }
 488
 489 check_deps(){
 490     for cfg; do
 491         cfg="${cfg#!}"
 492         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 493         disabled ${cfg}_checking && continue
 494         enable ${cfg}_checking
 495
 496         eval dep_all="\$${cfg}_deps"
 497         eval dep_any="\$${cfg}_deps_any"
 498         eval dep_sel="\$${cfg}_select"
 499         eval dep_sgs="\$${cfg}_suggest"
 500         eval dep_ifa="\$${cfg}_if"
 501         eval dep_ifn="\$${cfg}_if_any"
 502
 503         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 504         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 505         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 506
 507         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 508         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 509         enabled_all  $dep_all || disable $cfg
 510         enabled_any  $dep_any || disable $cfg
 511         disabled_any $dep_sel && disable $cfg
 512
 513         if enabled $cfg; then
 514             eval dep_extralibs="\$${cfg}_extralibs"
 515             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 516             enable_deep $dep_sel
 517             enable_deep_weak $dep_sgs
 518         fi
 519
 520         disable ${cfg}_checking
 521     done
 522 }
 523
 524 print_config_h(){
 525     enabled $1 && v=1 || v=0
 526     echo "#define $2 $v"
 527 }
 528
 529 print_config_mak(){
 530     enabled $1 && v= || v=!
 531     echo "$v$2=yes"
 532 }
 533
 534 print_config_asm(){
 535     enabled $1 && echo "%define $2"
 536 }
 537
 538 print_config(){
 539     pfx=$1
 540     files=$2
 541     shift 2
 542     for cfg; do
 543         ucname="$(toupper $cfg)"
 544         for f in $files; do
 545             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 546         done
 547     done
 548 }
 549
 550 print_enabled(){
 551     test "$1" = -n && end=" " && shift || end="\n"
 552     suf=$1
 553     shift
 554     for v; do
 555         enabled $v && printf "%s$end" ${v%$suf};
 556     done
 557 }
 558
 559 append(){
 560     var=$1
 561     shift
 562     eval "$var=\"\$$var $*\""
 563 }
 564
 565 prepend(){
 566     var=$1
 567     shift
 568     eval "$var=\"$* \$$var\""
 569 }
 570
 571 add_cppflags(){
 572     append CPPFLAGS $($filter_cppflags "$@")
 573 }
 574
 575 add_cflags(){
 576     append CFLAGS $($filter_cflags "$@")
 577 }
 578
 579 add_asflags(){
 580     append ASFLAGS $($filter_asflags "$@")
 581 }
 582
 583 add_ldflags(){
 584     append LDFLAGS "$@"
 585 }
 586
 587 add_extralibs(){
 588     prepend extralibs "$@"
 589 }
 590
 591 check_cmd(){
 592     log "$@"
 593     "$@" >> $logfile 2>&1
 594 }
 595
 596 check_cc(){
 597     log check_cc "$@"
 598     cat > $TMPC
 599     log_file $TMPC
 600     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 601 }
 602
 603 check_cpp(){
 604     log check_cpp "$@"
 605     cat > $TMPC
 606     log_file $TMPC
 607     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 608 }
 609
 610 check_as(){
 611     log check_as "$@"
 612     cat > $TMPC
 613     log_file $TMPC
 614     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 615 }
 616
 617 check_asm(){
 618     log check_asm "$@"
 619     name="$1"
 620     code="$2"
 621     shift 2
 622     disable $name
 623     check_as "$@" <<EOF && enable $name
 624 void foo(void){ __asm__ volatile($code); }
 625 EOF
 626 }
 627
 628 check_yasm(){
 629     log check_yasm "$@"
 630     echo "$1" > $TMPS
 631     log_file $TMPS
 632     shift 1
 633     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 634 }
 635
 636 check_ld(){
 637     log check_ld "$@"
 638     flags=''
 639     libs=''
 640     for f; do
 641         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 642     done
 643     check_cc $($filter_cflags $flags) || return
 644     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 645 }
 646
 647 check_cppflags(){
 648     log check_cppflags "$@"
 649     set -- $($filter_cppflags "$@")
 650     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 651 int x;
 652 EOF
 653 }
 654
 655 check_cflags(){
 656     log check_cflags "$@"
 657     set -- $($filter_cflags "$@")
 658     check_cc "$@" <<EOF && append CFLAGS "$@"
 659 int x;
 660 EOF
 661 }
 662
 663 test_ldflags(){
 664     log test_ldflags "$@"
 665     check_ld "$@" <<EOF
 666 int main(void){ return 0; }
 667 EOF
 668 }
 669
 670 check_ldflags(){
 671     log check_ldflags "$@"
 672     test_ldflags "$@" && add_ldflags "$@"
 673 }
 674
 675 check_header(){
 676     log check_header "$@"
 677     header=$1
 678     shift
 679     disable_safe $header
 680     check_cpp "$@" <<EOF && enable_safe $header
 681 #include <$header>
 682 int x;
 683 EOF
 684 }
 685
 686 check_func(){
 687     log check_func "$@"
 688     func=$1
 689     shift
 690     disable $func
 691     check_ld "$@" <<EOF && enable $func
 692 extern int $func();
 693 int main(void){ $func(); }
 694 EOF
 695 }
 696
 697 check_mathfunc(){
 698     log check_mathfunc "$@"
 699     func=$1
 700     shift
 701     disable $func
 702     check_ld "$@" <<EOF && enable $func
 703 #include <math.h>
 704 float foo(float f) { return $func(f); }
 705 int main(void){ return 0; }
 706 EOF
 707 }
 708
 709 check_func_headers(){
 710     log check_func_headers "$@"
 711     headers=$1
 712     funcs=$2
 713     shift 2
 714     {
 715         for hdr in $headers; do
 716             echo "#include <$hdr>"
 717         done
 718         for func in $funcs; do
 719             echo "long check_$func(void) { return (long) $func; }"
 720         done
 721         echo "int main(void) { return 0; }"
 722     } | check_ld "$@" && enable $funcs && enable_safe $headers
 723 }
 724
 725 check_cpp_condition(){
 726     log check_cpp_condition "$@"
 727     header=$1
 728     condition=$2
 729     shift 2
 730     check_cpp $($filter_cppflags "$@") <<EOF
 731 #include <$header>
 732 #if !($condition)
 733 #error "unsatisfied condition: $condition"
 734 #endif
 735 EOF
 736 }
 737
 738 check_lib(){
 739     log check_lib "$@"
 740     header="$1"
 741     func="$2"
 742     shift 2
 743     check_header $header && check_func $func "$@" && add_extralibs "$@"
 744 }
 745
 746 check_lib2(){
 747     log check_lib2 "$@"
 748     headers="$1"
 749     funcs="$2"
 750     shift 2
 751     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 752 }
 753
 754 check_pkg_config(){
 755     log check_pkg_config "$@"
 756     pkg="$1"
 757     headers="$2"
 758     funcs="$3"
 759     shift 3
 760     $pkg_config --exists $pkg || return
 761     pkg_cflags=$($pkg_config --cflags $pkg)
 762     pkg_libs=$($pkg_config --libs $pkg)
 763     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 764         set_safe ${pkg}_cflags $pkg_cflags   &&
 765         set_safe ${pkg}_libs   $pkg_libs
 766 }
 767
 768 check_exec(){
 769     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 770 }
 771
 772 check_exec_crash(){
 773     code=$(cat)
 774
 775     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 776     # are safe but may not be available everywhere.  Thus we use
 777     # raise(SIGTERM) instead.  The check is run in a subshell so we
 778     # can redirect the "Terminated" message from the shell.  SIGBUS
 779     # is not defined by standard C so it is used conditionally.
 780
 781     (check_exec "$@") >> $logfile 2>&1 <<EOF
 782 #include <signal.h>
 783 static void sighandler(int sig){
 784     raise(SIGTERM);
 785 }
 786 int main(void){
 787     signal(SIGILL, sighandler);
 788     signal(SIGFPE, sighandler);
 789     signal(SIGSEGV, sighandler);
 790 #ifdef SIGBUS
 791     signal(SIGBUS, sighandler);
 792 #endif
 793     { $code }
 794 }
 795 EOF
 796 }
 797
 798 check_type(){
 799     log check_type "$@"
 800     headers=$1
 801     type=$2
 802     shift 2
 803     disable_safe "$type"
 804     incs=""
 805     for hdr in $headers; do
 806         incs="$incs
 807 #include <$hdr>"
 808     done
 809     check_cc "$@" <<EOF && enable_safe "$type"
 810 $incs
 811 $type v;
 812 EOF
 813 }
 814
 815 check_struct(){
 816     log check_type "$@"
 817     headers=$1
 818     struct=$2
 819     member=$3
 820     shift 3
 821     disable_safe "${struct}_${member}"
 822     incs=""
 823     for hdr in $headers; do
 824         incs="$incs
 825 #include <$hdr>"
 826     done
 827     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 828 $incs
 829 const void *p = &(($struct *)0)->$member;
 830 EOF
 831 }
 832
 833 require(){
 834     name="$1"
 835     header="$2"
 836     func="$3"
 837     shift 3
 838     check_lib $header $func "$@" || die "ERROR: $name not found"
 839 }
 840
 841 require2(){
 842     name="$1"
 843     headers="$2"
 844     func="$3"
 845     shift 3
 846     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 847 }
 848
 849 require_pkg_config(){
 850     pkg="$1"
 851     check_pkg_config "$@" || die "ERROR: $pkg not found"
 852     add_cflags    $(get_safe ${pkg}_cflags)
 853     add_extralibs $(get_safe ${pkg}_libs)
 854 }
 855
 856 check_host_cc(){
 857     log check_host_cc "$@"
 858     cat > $TMPC
 859     log_file $TMPC
 860     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 861 }
 862
 863 check_host_cflags(){
 864     log check_host_cflags "$@"
 865     check_host_cc "$@" <<EOF && append host_cflags "$@"
 866 int x;
 867 EOF
 868 }
 869
 870 apply(){
 871     file=$1
 872     shift
 873     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 874 }
 875
 876 cp_if_changed(){
 877     cmp -s "$1" "$2" &&
 878         echo "$2 is unchanged" ||
 879         cp -f "$1" "$2"
 880 }
 881
 882 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 883 # system-dependent things.
 884
 885 COMPONENT_LIST="
 886     bsfs
 887     decoders
 888     demuxers
 889     encoders
 890     filters
 891     hwaccels
 892     indevs
 893     muxers
 894     outdevs
 895     parsers
 896     protocols
 897 "
 898
 899 CONFIG_LIST="
 900     $COMPONENT_LIST
 901     aandct
 902     ac3dsp
 903     avcodec
 904     avdevice
 905     avfilter
 906     avformat
 907     avisynth
 908     bzlib
 909     crystalhd
 910     dct
 911     doc
 912     dwt
 913     dxva2
 914     fastdiv
 915     ffmpeg
 916     ffplay
 917     ffprobe
 918     ffserver
 919     fft
 920     frei0r
 921     golomb
 922     gpl
 923     gray
 924     h264dsp
 925     h264pred
 926     hardcoded_tables
 927     huffman
 928     libdc1394
 929     libdirac
 930     libfaac
 931     libfreetype
 932     libgsm
 933     libmp3lame
 934     libnut
 935     libopencore_amrnb
 936     libopencore_amrwb
 937     libopencv
 938     libopenjpeg
 939     librtmp
 940     libschroedinger
 941     libspeex
 942     libtheora
 943     libvorbis
 944     libvpx
 945     libx264
 946     libxavs
 947     libxvid
 948     lpc
 949     lsp
 950     mdct
 951     memalign_hack
 952     mlib
 953     mpegaudio_hp
 954     network
 955     nonfree
 956     pic
 957     postproc
 958     rdft
 959     rtpdec
 960     runtime_cpudetect
 961     shared
 962     sinewin
 963     small
 964     sram
 965     static
 966     swscale
 967     swscale_alpha
 968     vaapi
 969     vdpau
 970     version3
 971     x11grab
 972     zlib
 973 "
 974
 975 THREADS_LIST='
 976     pthreads
 977     w32threads
 978 '
 979
 980 ARCH_LIST='
 981     alpha
 982     arm
 983     avr32
 984     avr32_ap
 985     avr32_uc
 986     bfin
 987     ia64
 988     m68k
 989     mips
 990     mips64
 991     parisc
 992     ppc
 993     ppc64
 994     s390
 995     sh4
 996     sparc
 997     sparc64
 998     tomi
 999     x86
1000     x86_32
1001     x86_64
1002 '
1003
1004 ARCH_EXT_LIST='
1005     altivec
1006     amd3dnow
1007     amd3dnowext
1008     armv5te
1009     armv6
1010     armv6t2
1011     armvfp
1012     avx
1013     iwmmxt
1014     mmi
1015     mmx
1016     mmx2
1017     neon
1018     ppc4xx
1019     sse
1020     ssse3
1021     vis
1022 '
1023
1024 HAVE_LIST_PUB='
1025     bigendian
1026     fast_unaligned
1027 '
1028
1029 HAVE_LIST="
1030     $ARCH_EXT_LIST
1031     $HAVE_LIST_PUB
1032     $THREADS_LIST
1033     aligned_stack
1034     alsa_asoundlib_h
1035     altivec_h
1036     arpa_inet_h
1037     attribute_may_alias
1038     attribute_packed
1039     bswap
1040     closesocket
1041     cmov
1042     dcbzl
1043     dev_bktr_ioctl_bt848_h
1044     dev_bktr_ioctl_meteor_h
1045     dev_ic_bt8xx_h
1046     dev_video_meteor_ioctl_meteor_h
1047     dev_video_bktr_ioctl_bt848_h
1048     dlfcn_h
1049     dlopen
1050     dos_paths
1051     ebp_available
1052     ebx_available
1053     exp2
1054     exp2f
1055     fast_64bit
1056     fast_clz
1057     fast_cmov
1058     fcntl
1059     fork
1060     getaddrinfo
1061     gethrtime
1062     GetProcessMemoryInfo
1063     GetProcessTimes
1064     getrusage
1065     gnu_as
1066     struct_rusage_ru_maxrss
1067     ibm_asm
1068     inet_aton
1069     inline_asm
1070     isatty
1071     kbhit
1072     ldbrx
1073     libdc1394_1
1074     libdc1394_2
1075     llrint
1076     llrintf
1077     local_aligned_16
1078     local_aligned_8
1079     localtime_r
1080     log2
1081     log2f
1082     loongson
1083     lrint
1084     lrintf
1085     lzo1x_999_compress
1086     machine_ioctl_bt848_h
1087     machine_ioctl_meteor_h
1088     malloc_h
1089     MapViewOfFile
1090     memalign
1091     mkstemp
1092     mmap
1093     pld
1094     posix_memalign
1095     round
1096     roundf
1097     sdl
1098     sdl_video_size
1099     setmode
1100     sndio_h
1101     socklen_t
1102     soundcard_h
1103     poll_h
1104     setrlimit
1105     strerror_r
1106     strtok_r
1107     struct_addrinfo
1108     struct_ipv6_mreq
1109     struct_sockaddr_in6
1110     struct_sockaddr_sa_len
1111     struct_sockaddr_storage
1112     symver
1113     symver_gnu_asm
1114     symver_asm_label
1115     sys_mman_h
1116     sys_resource_h
1117     sys_select_h
1118     sys_soundcard_h
1119     sys_videoio_h
1120     ten_operands
1121     threads
1122     truncf
1123     vfp_args
1124     VirtualAlloc
1125     winsock2_h
1126     xform_asm
1127     xmm_clobbers
1128     yasm
1129 "
1130
1131 # options emitted with CONFIG_ prefix but not available on command line
1132 CONFIG_EXTRA="
1133     avutil
1134     gplv3
1135     lgplv3
1136 "
1137
1138 CMDLINE_SELECT="
1139     $ARCH_EXT_LIST
1140     $CONFIG_LIST
1141     $THREADS_LIST
1142     asm
1143     cross_compile
1144     debug
1145     extra_warnings
1146     logging
1147     optimizations
1148     symver
1149     yasm
1150 "
1151
1152 PATHS_LIST='
1153     bindir
1154     datadir
1155     incdir
1156     libdir
1157     mandir
1158     prefix
1159     shlibdir
1160 '
1161
1162 CMDLINE_SET="
1163     $PATHS_LIST
1164     ar
1165     arch
1166     as
1167     build_suffix
1168     cc
1169     cpu
1170     cross_prefix
1171     dep_cc
1172     extra_version
1173     host_cc
1174     host_cflags
1175     host_ldflags
1176     host_libs
1177     host_os
1178     ld
1179     logfile
1180     malloc_prefix
1181     nm
1182     pkg_config
1183     samples
1184     source_path
1185     sysinclude
1186     sysroot
1187     target_exec
1188     target_os
1189     target_path
1190 "
1191
1192 CMDLINE_APPEND="
1193     extra_cflags
1194 "
1195
1196 # code dependency declarations
1197
1198 # architecture extensions
1199
1200 armv5te_deps="arm"
1201 armv6_deps="arm"
1202 armv6t2_deps="arm"
1203 armvfp_deps="arm"
1204 iwmmxt_deps="arm"
1205 neon_deps="arm"
1206
1207 mmi_deps="mips"
1208
1209 altivec_deps="ppc"
1210 ppc4xx_deps="ppc"
1211
1212 vis_deps="sparc"
1213
1214 x86_64_suggest="cmov fast_cmov"
1215 amd3dnow_deps="mmx"
1216 amd3dnowext_deps="amd3dnow"
1217 mmx_deps="x86"
1218 mmx2_deps="mmx"
1219 sse_deps="mmx"
1220 ssse3_deps="sse"
1221 avx_deps="ssse3"
1222
1223 aligned_stack_if_any="ppc x86"
1224 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1225 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1226 fast_unaligned_if_any="armv6 ppc x86"
1227
1228 need_memalign="altivec neon sse"
1229 inline_asm_deps="!tms470"
1230
1231 symver_if_any="symver_asm_label symver_gnu_asm"
1232
1233 # subsystems
1234 dct_select="rdft"
1235 mdct_select="fft"
1236 rdft_select="fft"
1237
1238 # decoders / encoders / hardware accelerators
1239 aac_decoder_select="mdct rdft sinewin"
1240 aac_encoder_select="mdct sinewin"
1241 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1242 ac3_decoder_select="mdct ac3dsp ac3_parser"
1243 ac3_encoder_select="mdct ac3dsp"
1244 ac3_fixed_encoder_select="ac3dsp"
1245 alac_encoder_select="lpc"
1246 amrnb_decoder_select="lsp"
1247 amrwb_decoder_select="lsp"
1248 atrac1_decoder_select="mdct sinewin"
1249 atrac3_decoder_select="mdct"
1250 binkaudio_dct_decoder_select="mdct rdft dct"
1251 binkaudio_rdft_decoder_select="mdct rdft"
1252 cavs_decoder_select="golomb"
1253 cook_decoder_select="mdct sinewin"
1254 cscd_decoder_suggest="zlib"
1255 dca_decoder_select="mdct"
1256 dnxhd_encoder_select="aandct"
1257 dxa_decoder_select="zlib"
1258 eac3_decoder_select="ac3_decoder"
1259 eamad_decoder_select="aandct"
1260 eatgq_decoder_select="aandct"
1261 eatqi_decoder_select="aandct"
1262 ffv1_decoder_select="golomb"
1263 flac_decoder_select="golomb"
1264 flac_encoder_select="golomb lpc"
1265 flashsv_decoder_select="zlib"
1266 flashsv_encoder_select="zlib"
1267 flv_decoder_select="h263_decoder"
1268 flv_encoder_select="h263_encoder"
1269 fraps_decoder_select="huffman"
1270 h261_encoder_select="aandct"
1271 h263_decoder_select="h263_parser"
1272 h263_encoder_select="aandct"
1273 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1274 h263i_decoder_select="h263_decoder"
1275 h263p_encoder_select="h263_encoder"
1276 h264_decoder_select="golomb h264dsp h264pred"
1277 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1278 h264_dxva2_hwaccel_deps="dxva2api_h"
1279 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1280 h264_vaapi_hwaccel_select="vaapi"
1281 h264_vdpau_decoder_select="vdpau h264_decoder"
1282 imc_decoder_select="fft mdct"
1283 jpegls_decoder_select="golomb"
1284 jpegls_encoder_select="golomb"
1285 ljpeg_encoder_select="aandct"
1286 loco_decoder_select="golomb"
1287 mjpeg_encoder_select="aandct"
1288 mlp_decoder_select="mlp_parser"
1289 mp1float_decoder_select="dct"
1290 mp2float_decoder_select="dct"
1291 mp3adufloat_decoder_select="dct"
1292 mp3float_decoder_select="dct"
1293 mp3on4float_decoder_select="dct"
1294 mpeg1video_encoder_select="aandct"
1295 mpeg2video_encoder_select="aandct"
1296 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1297 mpeg4_encoder_select="h263_encoder"
1298 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1299 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1300 mpeg2_crystalhd_decoder_select="crystalhd"
1301 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1302 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1303 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1304 mpeg4_crystalhd_decoder_select="crystalhd"
1305 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1306 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1307 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1308 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1309 msmpeg4_crystalhd_decoder_select="crystalhd"
1310 msmpeg4v1_decoder_select="h263_decoder"
1311 msmpeg4v1_encoder_select="h263_encoder"
1312 msmpeg4v2_decoder_select="h263_decoder"
1313 msmpeg4v2_encoder_select="h263_encoder"
1314 msmpeg4v3_decoder_select="h263_decoder"
1315 msmpeg4v3_encoder_select="h263_encoder"
1316 nellymoser_decoder_select="mdct sinewin"
1317 nellymoser_encoder_select="mdct sinewin"
1318 png_decoder_select="zlib"
1319 png_encoder_select="zlib"
1320 qcelp_decoder_select="lsp"
1321 qdm2_decoder_select="mdct rdft"
1322 ra_144_encoder_select="lpc"
1323 rv10_decoder_select="h263_decoder"
1324 rv10_encoder_select="h263_encoder"
1325 rv20_decoder_select="h263_decoder"
1326 rv20_encoder_select="h263_encoder"
1327 rv30_decoder_select="golomb h264pred"
1328 rv40_decoder_select="golomb h264pred"
1329 shorten_decoder_select="golomb"
1330 sipr_decoder_select="lsp"
1331 snow_decoder_select="dwt"
1332 snow_encoder_select="aandct dwt"
1333 sonic_decoder_select="golomb"
1334 sonic_encoder_select="golomb"
1335 sonic_ls_encoder_select="golomb"
1336 svq1_encoder_select="aandct"
1337 svq3_decoder_select="golomb h264dsp h264pred"
1338 svq3_decoder_suggest="zlib"
1339 theora_decoder_select="vp3_decoder"
1340 tiff_decoder_suggest="zlib"
1341 tiff_encoder_suggest="zlib"
1342 truehd_decoder_select="mlp_decoder"
1343 tscc_decoder_select="zlib"
1344 twinvq_decoder_select="mdct lsp sinewin"
1345 vc1_decoder_select="h263_decoder"
1346 vc1_crystalhd_decoder_select="crystalhd"
1347 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1348 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1349 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1350 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1351 vorbis_decoder_select="mdct"
1352 vorbis_encoder_select="mdct"
1353 vp6_decoder_select="huffman"
1354 vp6a_decoder_select="vp6_decoder"
1355 vp6f_decoder_select="vp6_decoder"
1356 vp8_decoder_select="h264pred"
1357 wmapro_decoder_select="mdct sinewin"
1358 wmav1_decoder_select="mdct sinewin"
1359 wmav1_encoder_select="mdct sinewin"
1360 wmav2_decoder_select="mdct sinewin"
1361 wmav2_encoder_select="mdct sinewin"
1362 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1363 wmv1_decoder_select="h263_decoder"
1364 wmv1_encoder_select="h263_encoder"
1365 wmv2_decoder_select="h263_decoder"
1366 wmv2_encoder_select="h263_encoder"
1367 wmv3_decoder_select="vc1_decoder"
1368 wmv3_crystalhd_decoder_select="crystalhd"
1369 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1370 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1371 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1372 zlib_decoder_select="zlib"
1373 zlib_encoder_select="zlib"
1374 zmbv_decoder_select="zlib"
1375 zmbv_encoder_select="zlib"
1376
1377 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1378 vaapi_deps="va_va_h"
1379 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1380
1381 # parsers
1382 h264_parser_select="golomb h264dsp h264pred"
1383
1384 # external libraries
1385 libdirac_decoder_deps="libdirac !libschroedinger"
1386 libdirac_encoder_deps="libdirac"
1387 libfaac_encoder_deps="libfaac"
1388 libgsm_decoder_deps="libgsm"
1389 libgsm_encoder_deps="libgsm"
1390 libgsm_ms_decoder_deps="libgsm"
1391 libgsm_ms_encoder_deps="libgsm"
1392 libmp3lame_encoder_deps="libmp3lame"
1393 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1394 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1395 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1396 libopenjpeg_decoder_deps="libopenjpeg"
1397 libschroedinger_decoder_deps="libschroedinger"
1398 libschroedinger_encoder_deps="libschroedinger"
1399 libspeex_decoder_deps="libspeex"
1400 libtheora_encoder_deps="libtheora"
1401 libvorbis_encoder_deps="libvorbis"
1402 libvpx_decoder_deps="libvpx"
1403 libvpx_encoder_deps="libvpx"
1404 libx264_encoder_deps="libx264"
1405 libxavs_encoder_deps="libxavs"
1406 libxvid_encoder_deps="libxvid"
1407
1408 # demuxers / muxers
1409 ac3_demuxer_select="ac3_parser"
1410 asf_stream_muxer_select="asf_muxer"
1411 avisynth_demuxer_deps="avisynth"
1412 dirac_demuxer_select="dirac_parser"
1413 eac3_demuxer_select="ac3_parser"
1414 flac_demuxer_select="flac_parser"
1415 ipod_muxer_select="mov_muxer"
1416 libnut_demuxer_deps="libnut"
1417 libnut_muxer_deps="libnut"
1418 matroska_audio_muxer_select="matroska_muxer"
1419 matroska_demuxer_suggest="zlib bzlib"
1420 mov_demuxer_suggest="zlib"
1421 mp3_demuxer_select="mpegaudio_parser"
1422 mp4_muxer_select="mov_muxer"
1423 mpegtsraw_demuxer_select="mpegts_demuxer"
1424 mxf_d10_muxer_select="mxf_muxer"
1425 ogg_demuxer_select="golomb"
1426 psp_muxer_select="mov_muxer"
1427 rtp_demuxer_select="sdp_demuxer"
1428 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1429 rtsp_demuxer_select="http_protocol rtpdec"
1430 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1431 sap_demuxer_select="sdp_demuxer"
1432 sap_muxer_select="rtp_muxer rtp_protocol"
1433 sdp_demuxer_select="rtpdec"
1434 spdif_muxer_select="aac_parser"
1435 tg2_muxer_select="mov_muxer"
1436 tgp_muxer_select="mov_muxer"
1437 w64_demuxer_deps="wav_demuxer"
1438
1439 # indevs / outdevs
1440 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1441 alsa_outdev_deps="alsa_asoundlib_h"
1442 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1443 dv1394_indev_deps="dv1394 dv_demuxer"
1444 fbdev_indev_deps="linux_fb_h"
1445 jack_indev_deps="jack_jack_h"
1446 libdc1394_indev_deps="libdc1394"
1447 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1448 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1449 sndio_indev_deps="sndio_h"
1450 sndio_outdev_deps="sndio_h"
1451 v4l_indev_deps="linux_videodev_h"
1452 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1453 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1454 vfwcap_indev_extralibs="-lavicap32"
1455 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1456 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1457
1458 # protocols
1459 gopher_protocol_deps="network"
1460 http_protocol_deps="network"
1461 http_protocol_select="tcp_protocol"
1462 mmsh_protocol_select="http_protocol"
1463 mmst_protocol_deps="network"
1464 rtmp_protocol_select="tcp_protocol"
1465 rtp_protocol_select="udp_protocol"
1466 tcp_protocol_deps="network"
1467 udp_protocol_deps="network"
1468
1469 # filters
1470 blackframe_filter_deps="gpl"
1471 cropdetect_filter_deps="gpl"
1472 drawtext_filter_deps="libfreetype"
1473 frei0r_filter_deps="frei0r dlopen strtok_r"
1474 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1475 hqdn3d_filter_deps="gpl"
1476 mp_filter_deps="gpl"
1477 ocv_filter_deps="libopencv"
1478 scale_filter_deps="swscale"
1479 yadif_filter_deps="gpl"
1480
1481 # libraries
1482 avdevice_deps="avcodec avformat"
1483 avformat_deps="avcodec"
1484
1485 # programs
1486 ffmpeg_deps="avcodec avformat swscale"
1487 ffmpeg_select="buffer_filter"
1488 ffplay_deps="avcodec avformat swscale sdl"
1489 ffplay_select="rdft"
1490 ffprobe_deps="avcodec avformat"
1491 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1492 ffserver_extralibs='$ldl'
1493
1494 doc_deps="texi2html"
1495
1496 # tests
1497
1498 test_deps(){
1499     suf1=$1
1500     suf2=$2
1501     shift 2
1502     for v; do
1503         dep=${v%=*}
1504         tests=${v#*=}
1505         for name in ${tests}; do
1506             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1507         done
1508     done
1509 }
1510
1511 set_ne_test_deps(){
1512     eval ${1}_be_test_deps="bigendian"
1513     eval ${1}_le_test_deps="!bigendian"
1514 }
1515
1516 test_deps _encoder _decoder                                             \
1517     adpcm_g726=g726                                                     \
1518     adpcm_ima_qt                                                        \
1519     adpcm_ima_wav                                                       \
1520     adpcm_ms                                                            \
1521     adpcm_swf                                                           \
1522     adpcm_yamaha=adpcm_yam                                              \
1523     alac                                                                \
1524     asv1                                                                \
1525     asv2                                                                \
1526     bmp                                                                 \
1527     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1528     dvvideo="dv dv50"                                                   \
1529     ffv1                                                                \
1530     flac                                                                \
1531     flashsv                                                             \
1532     flv                                                                 \
1533     gif                                                                 \
1534     h261                                                                \
1535     h263="h263 h263p"                                                   \
1536     huffyuv                                                             \
1537     jpegls                                                              \
1538     mjpeg="jpg mjpeg ljpeg"                                             \
1539     mp2                                                                 \
1540     mpeg1video="mpeg mpeg1b"                                            \
1541     mpeg2video="mpeg2 mpeg2thread"                                      \
1542     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1543     msmpeg4v3=msmpeg4                                                   \
1544     msmpeg4v2                                                           \
1545     pbm=pbmpipe                                                         \
1546     pcx                                                                 \
1547     pgm="pgm pgmpipe"                                                   \
1548     png                                                                 \
1549     ppm="ppm ppmpipe"                                                   \
1550     rawvideo="rgb yuv"                                                  \
1551     roq                                                                 \
1552     rv10                                                                \
1553     rv20                                                                \
1554     sgi                                                                 \
1555     snow="snow snowll"                                                  \
1556     svq1                                                                \
1557     targa=tga                                                           \
1558     tiff                                                                \
1559     wmav1                                                               \
1560     wmav2                                                               \
1561     wmv1                                                                \
1562     wmv2                                                                \
1563
1564 test_deps _muxer _demuxer                                               \
1565     aiff                                                                \
1566     pcm_alaw=alaw                                                       \
1567     asf                                                                 \
1568     au                                                                  \
1569     avi                                                                 \
1570     dv=dv_fmt                                                           \
1571     ffm                                                                 \
1572     flv=flv_fmt                                                         \
1573     gxf                                                                 \
1574     matroska=mkv                                                        \
1575     mmf                                                                 \
1576     mov                                                                 \
1577     pcm_mulaw=mulaw                                                     \
1578     mxf                                                                 \
1579     nut                                                                 \
1580     ogg                                                                 \
1581     rawvideo=pixfmt                                                     \
1582     rm                                                                  \
1583     swf                                                                 \
1584     mpegts=ts                                                           \
1585     voc                                                                 \
1586     wav                                                                 \
1587     yuv4mpegpipe=yuv4mpeg                                               \
1588
1589 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1590 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1591
1592 set_ne_test_deps pixdesc
1593 set_ne_test_deps pixfmts_copy
1594 set_ne_test_deps pixfmts_crop
1595 set_ne_test_deps pixfmts_hflip
1596 set_ne_test_deps pixfmts_null
1597 set_ne_test_deps pixfmts_pad
1598 set_ne_test_deps pixfmts_scale
1599 set_ne_test_deps pixfmts_vflip
1600
1601 # default parameters
1602
1603 logfile="config.log"
1604
1605 # installation paths
1606 prefix_default="/usr/local"
1607 bindir_default='${prefix}/bin'
1608 datadir_default='${prefix}/share/ffmpeg'
1609 incdir_default='${prefix}/include'
1610 libdir_default='${prefix}/lib'
1611 mandir_default='${prefix}/share/man'
1612 shlibdir_default="$libdir_default"
1613
1614 # toolchain
1615 ar_default="ar"
1616 cc_default="gcc"
1617 cc_version=\"unknown\"
1618 host_cc_default="gcc"
1619 ln_s="ln -sf"
1620 nm_default="nm"
1621 objformat="elf"
1622 pkg_config_default=pkg-config
1623 ranlib="ranlib"
1624 yasmexe="yasm"
1625 nogas=":"
1626
1627 nm_opts='-g'
1628
1629 # machine
1630 arch_default=$(uname -m)
1631 cpu="generic"
1632
1633 # OS
1634 target_os_default=$(tolower $(uname -s))
1635 host_os=$target_os_default
1636
1637 # configurable options
1638 enable avcodec
1639 enable avdevice
1640 enable avfilter
1641 enable avformat
1642 enable avutil
1643 enable asm
1644 enable debug
1645 enable doc
1646 enable fastdiv
1647 enable ffmpeg
1648 enable ffplay
1649 enable ffprobe
1650 enable ffserver
1651 enable mpegaudio_hp
1652 enable network
1653 enable optimizations
1654 enable protocols
1655 enable static
1656 enable swscale
1657 enable swscale_alpha
1658
1659 # build settings
1660 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1661 FFSERVERLDFLAGS=-Wl,-E
1662 LIBPREF="lib"
1663 LIBSUF=".a"
1664 FULLNAME='$(NAME)$(BUILDSUF)'
1665 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1666 SLIBPREF="lib"
1667 SLIBSUF=".so"
1668 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1669 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1670 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1671 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1672
1673 CC_O='-o $@'
1674
1675 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1676 host_libs='-lm'
1677
1678 target_path='$(CURDIR)'
1679
1680 # since the object filename is not given with the -MM flag, the compiler
1681 # is only able to print the basename, and we must add the path ourselves
1682 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1683 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1684
1685 # find source path
1686 source_path="$(dirname "$0")"
1687 enable source_path_used
1688 if test -f configure; then
1689     source_path="$(pwd)"
1690     disable source_path_used
1691 else
1692     source_path="$(cd "$source_path"; pwd)"
1693     echo "$source_path" | grep -q '[[:blank:]]' &&
1694         die "Out of tree builds are impossible with whitespace in source path."
1695     test -e "$source_path/config.h" &&
1696         die "Out of tree builds are impossible with config.h in source dir."
1697 fi
1698
1699 for v in "$@"; do
1700     r=${v#*=}
1701     l=${v%"$r"}
1702     r=$(sh_quote "$r")
1703     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1704 done
1705
1706 find_things(){
1707     thing=$1
1708     pattern=$2
1709     file=$source_path/$3
1710     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1711 }
1712
1713 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1714 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1715 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1716 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1717 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1718 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1719 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1720 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1721 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1722 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1723 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1724
1725 find_tests(){
1726     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1727 }
1728
1729 ACODEC_TESTS=$(find_tests acodec)
1730 VCODEC_TESTS=$(find_tests vsynth1)
1731 LAVF_TESTS=$(find_tests lavf)
1732 LAVFI_TESTS=$(find_tests lavfi)
1733 SEEK_TESTS=$(find_tests seek seek_)
1734
1735 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1736
1737 for n in $COMPONENT_LIST; do
1738     v=$(toupper ${n%s})_LIST
1739     eval enable \$$v
1740     eval ${n}_if_any="\$$v"
1741 done
1742
1743 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1744
1745 die_unknown(){
1746     echo "Unknown option \"$1\"."
1747     echo "See $0 --help for available options."
1748     exit 1
1749 }
1750
1751 show_list() {
1752     suffix=_$1
1753     shift
1754     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1755     exit 0
1756 }
1757
1758 for opt do
1759     optval="${opt#*=}"
1760     case "$opt" in
1761     --extra-ldflags=*) add_ldflags $optval
1762     ;;
1763     --extra-libs=*) add_extralibs $optval
1764     ;;
1765     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1766     ;;
1767     --enable-debug=*) debuglevel="$optval"
1768     ;;
1769     --disable-everything)
1770     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1771     ;;
1772     --enable-*=*|--disable-*=*)
1773     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1774     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1775     eval list=\$$(toupper $thing)_LIST
1776     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1777     $action $(filter "$name" $list)
1778     ;;
1779     --enable-?*|--disable-?*)
1780     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1781     if is_in $option $COMPONENT_LIST; then
1782         test $action = disable && action=unset
1783         eval $action \$$(toupper ${option%s})_LIST
1784     elif is_in $option $CMDLINE_SELECT; then
1785         $action $option
1786     else
1787         die_unknown $opt
1788     fi
1789     ;;
1790     --list-*)
1791         NAME="${opt#--list-}"
1792         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1793         NAME=${NAME%s}
1794         eval show_list $NAME \$$(toupper $NAME)_LIST
1795     ;;
1796     --help|-h) show_help
1797     ;;
1798     *)
1799     optname="${opt%%=*}"
1800     optname="${optname#--}"
1801     optname=$(echo "$optname" | sed 's/-/_/g')
1802     if is_in $optname $CMDLINE_SET; then
1803         eval $optname='$optval'
1804     elif is_in $optname $CMDLINE_APPEND; then
1805         append $optname "$optval"
1806     else
1807          die_unknown $opt
1808     fi
1809     ;;
1810     esac
1811 done
1812
1813 disabled logging && logfile=/dev/null
1814
1815 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1816 set >> $logfile
1817
1818 test -n "$cross_prefix" && enable cross_compile
1819
1820 if enabled cross_compile; then
1821     test -n "$arch" && test -n "$target_os" ||
1822         die "Must specify target arch and OS when cross-compiling"
1823 fi
1824
1825 set_default arch target_os
1826
1827 ar_default="${cross_prefix}${ar_default}"
1828 cc_default="${cross_prefix}${cc_default}"
1829 nm_default="${cross_prefix}${nm_default}"
1830 pkg_config_default="${cross_prefix}${pkg_config_default}"
1831 ranlib="${cross_prefix}${ranlib}"
1832
1833 sysinclude_default="${sysroot}/usr/include"
1834
1835 set_default cc nm pkg_config sysinclude
1836 enabled cross_compile || host_cc_default=$cc
1837 set_default host_cc
1838
1839 exesuf() {
1840     case $1 in
1841         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1842     esac
1843 }
1844
1845 EXESUF=$(exesuf $target_os)
1846 HOSTEXESUF=$(exesuf $host_os)
1847
1848 # set temporary file name
1849 : ${TMPDIR:=$TEMPDIR}
1850 : ${TMPDIR:=$TMP}
1851 : ${TMPDIR:=/tmp}
1852
1853 if ! check_cmd mktemp -u XXXXXX; then
1854     # simple replacement for missing mktemp
1855     # NOT SAFE FOR GENERAL USE
1856     mktemp(){
1857         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1858     }
1859 fi
1860
1861 tmpfile(){
1862     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1863         (set -C; exec > $tmp) 2>/dev/null ||
1864         die "Unable to create temporary file in $TMPDIR."
1865     append TMPFILES $tmp
1866     eval $1=$tmp
1867 }
1868
1869 trap 'rm -f -- $TMPFILES' EXIT
1870
1871 tmpfile TMPC  .c
1872 tmpfile TMPE  $EXESUF
1873 tmpfile TMPH  .h
1874 tmpfile TMPO  .o
1875 tmpfile TMPS  .S
1876 tmpfile TMPV  .ver
1877 tmpfile TMPSH .sh
1878 tmpfile TMPASM .asm
1879
1880 unset -f mktemp
1881
1882 chmod +x $TMPE
1883
1884 # make sure we can execute files in $TMPDIR
1885 cat > $TMPSH 2>> $logfile <<EOF
1886 #! /bin/sh
1887 EOF
1888 chmod +x $TMPSH >> $logfile 2>&1
1889 if ! $TMPSH >> $logfile 2>&1; then
1890     cat <<EOF
1891 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1892 variable to another directory and make sure that it is not mounted noexec.
1893 EOF
1894     die "Sanity test failed."
1895 fi
1896
1897 filter_cflags=echo
1898 filter_cppflags=echo
1899 filter_asflags=echo
1900
1901 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1902     cc_type=llvm_gcc
1903     cc_version=__VERSION__
1904     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1905     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1906     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1907     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1908     speed_cflags='-O3'
1909     size_cflags='-Os'
1910 elif $cc -v 2>&1 | grep -qi ^gcc; then
1911     cc_type=gcc
1912     cc_version=__VERSION__
1913     gcc_version=$($cc --version | head -n1)
1914     gcc_basever=$($cc -dumpversion)
1915     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1916     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1917     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1918     if ! $cc -dumpversion | grep -q '^2\.'; then
1919         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1920         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1921     fi
1922     speed_cflags='-O3'
1923     size_cflags='-Os'
1924 elif $cc --version 2>/dev/null | grep -q Intel; then
1925     cc_type=icc
1926     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1927     cc_ident=$($cc --version | head -n1)
1928     icc_version=$($cc -dumpversion)
1929     CC_DEPFLAGS='-MMD'
1930     AS_DEPFLAGS='-MMD'
1931     speed_cflags='-O3'
1932     size_cflags='-Os'
1933     noopt_cflags='-O1'
1934 elif $cc -v 2>&1 | grep -q xlc; then
1935     cc_type=xlc
1936     cc_version="AV_STRINGIFY(__IBMC__)"
1937     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1938     speed_cflags='-O5'
1939     size_cflags='-O5 -qcompact'
1940 elif $cc -V 2>/dev/null | grep -q Compaq; then
1941     cc_type=ccc
1942     cc_version="AV_STRINGIFY(__DECC_VER)"
1943     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1944     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1945     debuglevel=3
1946     add_ldflags -Wl,-z,now # calls to libots crash without this
1947     speed_cflags='-fast'
1948     size_cflags='-O1'
1949 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1950     test -d "$sysroot" || die "No valid sysroot specified."
1951     cc_type=armcc
1952     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1953     cc_ident=$($cc --vsn | head -n1)
1954     armcc_conf="$PWD/armcc.conf"
1955     $cc --arm_linux_configure                 \
1956         --arm_linux_config_file="$armcc_conf" \
1957         --configure_sysroot="$sysroot"        \
1958         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1959         die "Error creating armcc configuration file."
1960     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1961     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1962     as_default="${cross_prefix}gcc"
1963     CC_DEPFLAGS='-MMD'
1964     AS_DEPFLAGS='-MMD'
1965     speed_cflags='-O3'
1966     size_cflags='-Os'
1967     filter_asflags="filter_out -W${armcc_opt}*"
1968 elif $cc -version 2>/dev/null | grep -q TMS470; then
1969     cc_type=tms470
1970     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1971     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1972     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1973     CC_O='-fr=$(@D)'
1974     as_default="${cross_prefix}gcc"
1975     ld_default="${cross_prefix}gcc"
1976     TMPO=$(basename $TMPC .c).o
1977     append TMPFILES $TMPO
1978     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1979     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1980     AS_DEPFLAGS='-MMD'
1981     speed_cflags='-O3 -mf=5'
1982     size_cflags='-O3 -mf=2'
1983     filter_cflags=tms470_flags
1984     tms470_flags(){
1985         for flag; do
1986             case $flag in
1987                 -march=*|-mcpu=*)
1988                     case "${flag#*=}" in
1989                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1990                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1991                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1992                         armv6*|arm11*)          echo -mv=6   ;;
1993                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1994                                                 echo -mv=5e  ;;
1995                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1996                     esac
1997                     ;;
1998                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1999                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2000                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2001                 -msoft-float)   echo --float_support=vfplib       ;;
2002                 -O[0-3]|-mf=*)  echo $flag                        ;;
2003                 -g)             echo -g -mn                       ;;
2004                 -pds=*)         echo $flag                        ;;
2005             esac
2006         done
2007     }
2008 elif $cc -v 2>&1 | grep -q clang; then
2009     cc_type=clang
2010     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2011         cc_version=__clang_version__ || cc_version=__VERSION__
2012     cc_ident=$($cc --version | head -n1)
2013     CC_DEPFLAGS='-MMD'
2014     AS_DEPFLAGS='-MMD'
2015     speed_cflags='-O3'
2016     size_cflags='-Os'
2017 elif $cc -V 2>&1 | grep -q Sun; then
2018     cc_type=suncc
2019     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2020     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2021     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2022     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2023     speed_cflags='-O5'
2024     size_cflags='-O5 -xspace'
2025     filter_cflags=suncc_flags
2026     suncc_flags(){
2027         for flag; do
2028             case $flag in
2029                 -march=*|-mcpu=*)
2030                     case "${flag#*=}" in
2031                         native)                   echo -xtarget=native       ;;
2032                         v9|niagara)               echo -xarch=sparc          ;;
2033                         ultrasparc)               echo -xarch=sparcvis       ;;
2034                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2035                         i586|pentium)             echo -xchip=pentium        ;;
2036                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2037                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2038                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2039                         pentium4*)          echo -xtarget=pentium4           ;;
2040                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2041                         *-sse3)             echo -xarch=sse3                 ;;
2042                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2043                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2044                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2045                         k8|opteron|athlon64|athlon-fx)
2046                                                   echo -xarch=sse2a          ;;
2047                         athlon*)                  echo -xarch=pentium_proa   ;;
2048                     esac
2049                     ;;
2050                 -std=c99)             echo -xc99              ;;
2051                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2052                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2053                 -W*,*)                echo $flag              ;;
2054                 -f*-*|-W*)                                    ;;
2055                 *)                    echo $flag              ;;
2056             esac
2057         done
2058     }
2059 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2060     cc_type=pathscale
2061     cc_version=__PATHSCALE__
2062     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2063     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2064     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2065     speed_cflags='-O2'
2066     size_cflags='-Os'
2067 elif $cc -v 2>&1 | grep -q Open64; then
2068     cc_type=open64
2069     cc_version=__OPEN64__
2070     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2071     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2072     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2073     speed_cflags='-O2'
2074     size_cflags='-Os'
2075 fi
2076
2077 test -n "$cc_type" && enable $cc_type ||
2078     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2079
2080 : ${as_default:=$cc}
2081 : ${dep_cc_default:=$cc}
2082 : ${ld_default:=$cc}
2083 set_default ar as dep_cc ld
2084
2085 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2086 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2087
2088 add_cflags $extra_cflags
2089 add_asflags $extra_cflags
2090
2091 if test -n "$sysroot"; then
2092     case "$cc_type" in
2093         gcc|llvm_gcc|clang)
2094             add_cppflags --sysroot="$sysroot"
2095             add_ldflags --sysroot="$sysroot"
2096         ;;
2097         tms470)
2098             add_cppflags -I"$sysinclude"
2099             add_ldflags  --sysroot="$sysroot"
2100         ;;
2101     esac
2102 fi
2103
2104 if test "$cpu" = host; then
2105     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2106
2107     case "$cc_type" in
2108         gcc|llvm_gcc)
2109             check_native(){
2110                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2111                 sed -n "/$1=/{
2112                             s/.*$1=\\([^ ]*\\).*/\\1/
2113                             p
2114                             q
2115                         }" $TMPE
2116             }
2117             cpu=$(check_native -march || check_native -mcpu)
2118         ;;
2119     esac
2120
2121     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2122 fi
2123
2124 # Deal with common $arch aliases
2125 case "$arch" in
2126     arm*)
2127         arch="arm"
2128     ;;
2129     mips|mipsel|IP*)
2130         arch="mips"
2131     ;;
2132     mips64*)
2133         arch="mips"
2134         subarch="mips64"
2135     ;;
2136     parisc|hppa)
2137         arch="parisc"
2138     ;;
2139     parisc64|hppa64)
2140         arch="parisc"
2141         subarch="parisc64"
2142     ;;
2143     "Power Macintosh"|ppc|powerpc)
2144         arch="ppc"
2145     ;;
2146     ppc64|powerpc64)
2147         arch="ppc"
2148         subarch="ppc64"
2149     ;;
2150     s390|s390x)
2151         arch="s390"
2152     ;;
2153     sh4|sh)
2154         arch="sh4"
2155     ;;
2156     sun4u|sparc64)
2157         arch="sparc"
2158         subarch="sparc64"
2159     ;;
2160     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2161         arch="x86"
2162     ;;
2163 esac
2164
2165 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2166 enable $arch
2167
2168 # Add processor-specific flags
2169 if test "$cpu" = generic; then
2170     : do nothing
2171 elif enabled ppc; then
2172
2173     case $(tolower $cpu) in
2174         601|ppc601|powerpc601)
2175             cpuflags="-mcpu=601"
2176             disable altivec
2177         ;;
2178         603*|ppc603*|powerpc603*)
2179             cpuflags="-mcpu=603"
2180             disable altivec
2181         ;;
2182         604*|ppc604*|powerpc604*)
2183             cpuflags="-mcpu=604"
2184             disable altivec
2185         ;;
2186         g3|75*|ppc75*|powerpc75*)
2187             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2188             disable altivec
2189         ;;
2190         g4|745*|ppc745*|powerpc745*)
2191             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2192         ;;
2193         74*|ppc74*|powerpc74*)
2194             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2195         ;;
2196         g5|970|ppc970|powerpc970|power4*)
2197             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2198         ;;
2199         cell)
2200             cpuflags="-mcpu=cell"
2201             enable ldbrx
2202         ;;
2203         e500v2)
2204             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2205             disable altivec
2206         ;;
2207         e500)
2208             cpuflags="-mcpu=8540 -mhard-float"
2209             disable altivec
2210         ;;
2211     esac
2212
2213 elif enabled x86; then
2214
2215     case $cpu in
2216         i[345]86|pentium)
2217             cpuflags="-march=$cpu"
2218             disable mmx
2219         ;;
2220         # targets that do NOT support conditional mov (cmov)
2221         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2222             cpuflags="-march=$cpu"
2223             disable cmov
2224         ;;
2225         # targets that do support conditional mov (cmov)
2226         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2227             cpuflags="-march=$cpu"
2228             enable cmov
2229             enable fast_cmov
2230         ;;
2231         # targets that do support conditional mov but on which it's slow
2232         pentium4|pentium4m|prescott|nocona)
2233             cpuflags="-march=$cpu"
2234             enable cmov
2235             disable fast_cmov
2236         ;;
2237     esac
2238
2239 elif enabled sparc; then
2240
2241     case $cpu in
2242         niagara)
2243             cpuflags="-mcpu=$cpu"
2244             disable vis
2245         ;;
2246         sparc64)
2247             cpuflags="-mcpu=v9"
2248         ;;
2249     esac
2250
2251 elif enabled arm; then
2252
2253     case $cpu in
2254         armv*)
2255             cpuflags="-march=$cpu"
2256             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2257         ;;
2258         *)
2259             cpuflags="-mcpu=$cpu"
2260             case $cpu in
2261                 cortex-a*)                               subarch=armv7a  ;;
2262                 cortex-r*)                               subarch=armv7r  ;;
2263                 cortex-m*)                               subarch=armv7m  ;;
2264                 arm11*)                                  subarch=armv6   ;;
2265                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2266                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2267             esac
2268         ;;
2269     esac
2270
2271 elif enabled alpha; then
2272
2273     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2274
2275 elif enabled bfin; then
2276
2277     cpuflags="-mcpu=$cpu"
2278
2279 elif enabled mips; then
2280
2281     cpuflags="-march=$cpu"
2282
2283 elif enabled avr32; then
2284
2285     case $cpu in
2286         ap7[02]0[0-2])
2287             subarch="avr32_ap"
2288             cpuflags="-mpart=$cpu"
2289         ;;
2290         ap)
2291             subarch="avr32_ap"
2292             cpuflags="-march=$cpu"
2293         ;;
2294         uc3[ab]*)
2295             subarch="avr32_uc"
2296             cpuflags="-mcpu=$cpu"
2297         ;;
2298         uc)
2299             subarch="avr32_uc"
2300             cpuflags="-march=$cpu"
2301         ;;
2302     esac
2303
2304 fi
2305
2306 add_cflags $cpuflags
2307 add_asflags $cpuflags
2308
2309 # compiler sanity check
2310 check_exec <<EOF
2311 int main(void){ return 0; }
2312 EOF
2313 if test "$?" != 0; then
2314     echo "$cc is unable to create an executable file."
2315     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2316         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2317         echo "Only do this if you know what cross compiling means."
2318     fi
2319     die "C compiler test failed."
2320 fi
2321
2322 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2323 check_cflags -std=c99
2324 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2325 #include <stdlib.h>
2326 EOF
2327 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2328 #include <stdlib.h>
2329 EOF
2330
2331 check_host_cflags -std=c99
2332
2333 case "$arch" in
2334     alpha|ia64|mips|parisc|sparc)
2335         spic=$shared
2336     ;;
2337     x86)
2338         subarch="x86_32"
2339         check_cc <<EOF && subarch="x86_64"
2340         int test[(int)sizeof(char*) - 7];
2341 EOF
2342         if test "$subarch" = "x86_64"; then
2343             spic=$shared
2344         fi
2345     ;;
2346 esac
2347
2348 enable $subarch
2349 enabled spic && enable pic
2350
2351 # OS specific
2352 case $target_os in
2353     haiku)
2354         prefix_default="/boot/common"
2355         network_extralibs="-lnetwork"
2356         host_libs=
2357         ;;
2358     sunos)
2359         FFSERVERLDFLAGS=""
2360         SHFLAGS='-shared -Wl,-h,$$(@F)'
2361         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2362         network_extralibs="-lsocket -lnsl"
2363         add_cppflags -D__EXTENSIONS__
2364         nm_opts='-P -g'
2365         ;;
2366     netbsd)
2367         disable symver
2368         oss_indev_extralibs="-lossaudio"
2369         oss_outdev_extralibs="-lossaudio"
2370         add_cppflags -D_XOPEN_SOURCE=600
2371         ;;
2372     openbsd)
2373         enable malloc_aligned
2374         # On OpenBSD 4.5. the compiler does not use PIC unless
2375         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2376         # however the generated executable will not do anything
2377         # (simply quits with exit-code 1, no crash, no output).
2378         # Thus explicitly enable PIC here.
2379         enable pic
2380         disable symver
2381         SHFLAGS='-shared'
2382         oss_indev_extralibs="-lossaudio"
2383         oss_outdev_extralibs="-lossaudio"
2384         ;;
2385     dragonfly)
2386         enable malloc_aligned
2387         disable symver
2388         ;;
2389     freebsd)
2390         enable malloc_aligned
2391         ;;
2392     bsd/os)
2393         add_extralibs -lpoll -lgnugetopt
2394         ;;
2395     darwin)
2396         enable malloc_aligned
2397         gas="gas-preprocessor.pl $cc"
2398         enabled ppc && add_asflags -force_cpusubtype_ALL
2399         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2400         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2401         add_ldflags -Wl,-dynamic,-search_paths_first
2402         SLIBSUF=".dylib"
2403         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2404         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2405         FFSERVERLDFLAGS=-Wl,-bind_at_load
2406         objformat="macho"
2407         enabled x86_64 && objformat="macho64"
2408         enabled_any pic shared ||
2409             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2410         ;;
2411     mingw32*)
2412         if test $target_os = "mingw32ce"; then
2413             disable network
2414         else
2415             target_os=mingw32
2416         fi
2417         LIBTARGET=i386
2418         if enabled x86_64; then
2419             enable malloc_aligned
2420             LIBTARGET="i386:x86-64"
2421         elif enabled arm; then
2422             LIBTARGET=arm-wince
2423         fi
2424         shlibdir_default="$bindir_default"
2425         SLIBPREF=""
2426         SLIBSUF=".dll"
2427         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2428         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2429         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2430         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2431             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2432             install -d "$(LIBDIR)"; \
2433             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2434         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2435         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'
2436         objformat="win32"
2437         dlltool="${cross_prefix}dlltool"
2438         enable dos_paths
2439         check_cflags -fno-common
2440         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2441                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2442                 die "ERROR: MinGW runtime version must be >= 3.15."
2443         add_cppflags -U__STRICT_ANSI__
2444         ;;
2445     cygwin*)
2446         target_os=cygwin
2447         shlibdir_default="$bindir_default"
2448         SLIBPREF="cyg"
2449         SLIBSUF=".dll"
2450         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2451         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2452         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2453         objformat="win32"
2454         enable dos_paths
2455         check_cflags -fno-common
2456         ;;
2457     *-dos|freedos|opendos)
2458         network_extralibs="-lsocket"
2459         objformat="coff"
2460         enable dos_paths
2461         ;;
2462     linux)
2463         enable dv1394
2464         ;;
2465     irix*)
2466         target_os=irix
2467         ranlib="echo ignoring ranlib"
2468         ;;
2469     os/2*)
2470         ln_s="cp -f"
2471         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2472         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2473         FFSERVERLDFLAGS=""
2474         LIBSUF="_s.a"
2475         SLIBPREF=""
2476         SLIBSUF=".dll"
2477         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2478         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2479         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2480           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2481           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2482           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2483           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2484           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2485         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2486           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2487         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2488         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2489         enable dos_paths
2490         ;;
2491     gnu/kfreebsd)
2492         ;;
2493     gnu)
2494         ;;
2495     qnx)
2496         add_cppflags -D_QNX_SOURCE
2497         network_extralibs="-lsocket"
2498         ;;
2499     none)
2500         ;;
2501     *)
2502         die "Unknown OS '$target_os'."
2503         ;;
2504 esac
2505
2506 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2507
2508 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2509
2510 set_default $PATHS_LIST
2511
2512 # we need to build at least one lib type
2513 if ! enabled_any static shared; then
2514     cat <<EOF
2515 At least one library type must be built.
2516 Specify --enable-static to build the static libraries or --enable-shared to
2517 build the shared libraries as well. To only build the shared libraries specify
2518 --disable-static in addition to --enable-shared.
2519 EOF
2520     exit 1;
2521 fi
2522
2523 disabled static && LIBNAME=""
2524
2525 die_license_disabled() {
2526     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2527 }
2528
2529 die_license_disabled gpl libx264
2530 die_license_disabled gpl libxavs
2531 die_license_disabled gpl libxvid
2532 die_license_disabled gpl postproc
2533 die_license_disabled gpl x11grab
2534
2535 die_license_disabled nonfree libfaac
2536
2537 die_license_disabled version3 libopencore_amrnb
2538 die_license_disabled version3 libopencore_amrwb
2539
2540 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2541
2542 disabled optimizations || check_cflags -fomit-frame-pointer
2543
2544 enable_pic() {
2545     enable pic
2546     add_cppflags -DPIC
2547     add_cflags   -fPIC
2548     add_asflags  -fPIC
2549 }
2550
2551 enabled pic && enable_pic
2552
2553 check_cc <<EOF || die "Symbol mangling check failed."
2554 int ff_extern;
2555 EOF
2556 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2557 extern_prefix=${sym%%ff_extern*}
2558
2559 check_cc <<EOF && enable inline_asm
2560 void foo(void) { __asm__ volatile ("" ::); }
2561 EOF
2562
2563 _restrict=
2564 for restrict_keyword in restrict __restrict__ __restrict; do
2565     check_cc <<EOF && _restrict=$restrict_keyword && break
2566 void foo(char * $restrict_keyword p);
2567 EOF
2568 done
2569
2570 check_cc <<EOF && enable attribute_packed
2571 struct { int x; } __attribute__((packed)) x;
2572 EOF
2573
2574 check_cc <<EOF && enable attribute_may_alias
2575 union { int x; } __attribute__((may_alias)) x;
2576 EOF
2577
2578 check_cc <<EOF || die "endian test failed"
2579 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2580 EOF
2581 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2582
2583 if enabled alpha; then
2584
2585     check_cflags -mieee
2586
2587 elif enabled arm; then
2588
2589     check_cflags -marm
2590     nogas=die
2591
2592     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2593         enable vfp_args
2594     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2595         case "${cross_prefix:-$cc}" in
2596             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2597             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2598 __asm__ (".eabi_attribute 28, 1");
2599 int main(void) { return 0; }
2600 EOF
2601         esac
2602         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2603     fi
2604
2605     # We have to check if pld is a nop and disable it.
2606     check_asm pld '"pld [r0]"'
2607
2608     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2609     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2610     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2611     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2612     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2613     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2614
2615     enabled_all armv6t2 shared !pic && enable_pic
2616
2617 elif enabled mips; then
2618
2619     check_asm loongson '"dmult.g $1, $2, $3"'
2620     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2621
2622 elif enabled ppc; then
2623
2624     enable local_aligned_8 local_aligned_16
2625
2626     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2627     check_asm ibm_asm   '"add 0, 0, 0"'
2628     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2629     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2630
2631     # AltiVec flags: The FSF version of GCC differs from the Apple version
2632     if enabled altivec; then
2633         nogas=warn
2634         check_cflags -maltivec -mabi=altivec &&
2635         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2636         check_cflags -faltivec
2637
2638         # check if our compiler supports Motorola AltiVec C API
2639         check_cc <<EOF || disable altivec
2640 $inc_altivec_h
2641 int main(void) {
2642     vector signed int v1, v2, v3;
2643     v1 = vec_add(v2,v3);
2644     return 0;
2645 }
2646 EOF
2647
2648         # check if our compiler supports braces for vector declarations
2649         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2650 $inc_altivec_h
2651 int main (void) { (vector int) {1}; return 0; }
2652 EOF
2653     fi
2654
2655 elif enabled sparc; then
2656
2657     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2658         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2659
2660 elif enabled x86; then
2661
2662     enable local_aligned_8 local_aligned_16
2663
2664     # check whether EBP is available on x86
2665     # As 'i' is stored on the stack, this program will crash
2666     # if the base pointer is used to access it because the
2667     # base pointer is cleared in the inline assembly code.
2668     check_exec_crash <<EOF && enable ebp_available
2669     volatile int i=0;
2670     __asm__ volatile (
2671         "xorl %%ebp, %%ebp"
2672     ::: "%ebp");
2673     return i;
2674 EOF
2675
2676     # check whether EBX is available on x86
2677     check_asm ebx_available '""::"b"(0)' &&
2678         check_asm ebx_available '"":::"%ebx"'
2679
2680     # check whether xmm clobbers are supported
2681     check_asm xmm_clobbers '"":::"%xmm0"'
2682
2683     # check whether more than 10 operands are supported
2684     check_cc <<EOF && enable ten_operands
2685 int main(void) {
2686     int x=0;
2687     __asm__ volatile(
2688         ""
2689         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2690     );
2691     return 0;
2692 }
2693 EOF
2694
2695     # check whether binutils is new enough to compile SSSE3/MMX2
2696     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2697     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2698
2699     check_asm bswap '"bswap %%eax" ::: "%eax"'
2700
2701     if ! disabled_any asm mmx yasm; then
2702         if check_cmd $yasmexe --version; then
2703             enabled x86_64 && yasm_extra="-m amd64"
2704             yasm_debug="-g dwarf2"
2705         elif check_cmd nasm -v; then
2706             yasmexe=nasm
2707             yasm_debug="-g -F dwarf"
2708             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2709         fi
2710
2711         YASMFLAGS="-f $objformat $yasm_extra"
2712         enabled pic               && append YASMFLAGS "-DPIC"
2713         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2714         case "$objformat" in
2715             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2716         esac
2717
2718         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2719             die "yasm not found, use --disable-yasm for a crippled build"
2720         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2721     fi
2722
2723     case "$cpu" in
2724         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2725             disable fast_clz
2726         ;;
2727     esac
2728
2729 fi
2730
2731 if enabled asm; then
2732     as=${gas:=$as}
2733     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2734         $nogas "GNU assembler not found, install gas-preprocessor"
2735 fi
2736
2737 check_ldflags -Wl,--as-needed
2738
2739 if check_func dlopen; then
2740     ldl=
2741 elif check_func dlopen -ldl; then
2742     ldl=-ldl
2743 fi
2744
2745 if enabled network; then
2746     check_type "sys/types.h sys/socket.h" socklen_t
2747     check_type netdb.h "struct addrinfo"
2748     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2749     check_type netinet/in.h "struct sockaddr_in6"
2750     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2751     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2752     # Prefer arpa/inet.h over winsock2
2753     if check_header arpa/inet.h ; then
2754         check_func closesocket
2755     elif check_header winsock2.h ; then
2756         check_func_headers winsock2.h closesocket -lws2 && \
2757             network_extralibs="-lws2" || \
2758         { check_func_headers winsock2.h closesocket -lws2_32 && \
2759             network_extralibs="-lws2_32"; }
2760         check_type ws2tcpip.h socklen_t
2761         check_type ws2tcpip.h "struct addrinfo"
2762         check_type ws2tcpip.h "struct ipv6_mreq"
2763         check_type ws2tcpip.h "struct sockaddr_in6"
2764         check_type ws2tcpip.h "struct sockaddr_storage"
2765         check_struct winsock2.h "struct sockaddr" sa_len
2766     else
2767         disable network
2768     fi
2769 fi
2770
2771 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2772 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2773
2774 check_func  fcntl
2775 check_func  fork
2776 check_func  getaddrinfo $network_extralibs
2777 check_func  gethrtime
2778 check_func  getrusage
2779 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2780 check_func  inet_aton $network_extralibs
2781 check_func  isatty
2782 check_func  localtime_r
2783 check_func  ${malloc_prefix}memalign            && enable memalign
2784 check_func  mkstemp
2785 check_func  mmap
2786 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2787 check_func  setrlimit
2788 check_func  strerror_r
2789 check_func  strtok_r
2790 check_func_headers conio.h kbhit
2791 check_func_headers io.h setmode
2792 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2793 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2794 check_func_headers windows.h GetProcessTimes
2795 check_func_headers windows.h MapViewOfFile
2796 check_func_headers windows.h VirtualAlloc
2797
2798 check_header dlfcn.h
2799 check_header dxva2api.h
2800 check_header libcrystalhd/libcrystalhd_if.h
2801 check_header malloc.h
2802 check_header poll.h
2803 check_header sys/mman.h
2804 check_header sys/resource.h
2805 check_header sys/select.h
2806 check_header vdpau/vdpau.h
2807 check_header vdpau/vdpau_x11.h
2808 check_header X11/extensions/XvMClib.h
2809
2810 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2811
2812 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2813      enabled_any $need_memalign ; then
2814     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2815 fi
2816
2817 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2818 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2819
2820 # check for some common methods of building with pthread support
2821 # do this before the optional library checks as some of them require pthreads
2822 if ! disabled pthreads && ! enabled w32threads; then
2823     enable pthreads
2824     if check_func pthread_create; then
2825         :
2826     elif check_func pthread_create -pthread; then
2827         add_cflags -pthread
2828         add_extralibs -pthread
2829     elif check_func pthread_create -pthreads; then
2830         add_cflags -pthreads
2831         add_extralibs -pthreads
2832     elif check_func pthread_create -lpthreadGC2; then
2833         add_extralibs -lpthreadGC2
2834     elif ! check_lib pthread.h pthread_create -lpthread; then
2835         disable pthreads
2836     fi
2837 fi
2838
2839 for thread in $THREADS_LIST; do
2840     if enabled $thread; then
2841         test -n "$thread_type" &&
2842             die "ERROR: Only one thread type must be selected." ||
2843             thread_type="$thread"
2844     fi
2845 done
2846
2847 check_lib math.h sin -lm
2848 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2849
2850 check_mathfunc exp2
2851 check_mathfunc exp2f
2852 check_mathfunc llrint
2853 check_mathfunc llrintf
2854 check_mathfunc log2
2855 check_mathfunc log2f
2856 check_mathfunc lrint
2857 check_mathfunc lrintf
2858 check_mathfunc round
2859 check_mathfunc roundf
2860 check_mathfunc truncf
2861
2862 # these are off by default, so fail if requested and not available
2863 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2864 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2865 enabled libdirac   && require_pkg_config dirac                          \
2866     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2867     "dirac_decoder_init dirac_encoder_init"
2868 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2869 enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2870 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2871 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2872 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2873 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2874 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2875 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2876 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2877 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2878 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2879 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2880 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2881 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2882 enabled libvpx     && {
2883     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2884                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2885     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2886                                 die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2887 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2888                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2889                         die "ERROR: libx264 version must be >= 0.99."; }
2890 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2891 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2892 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2893
2894 # libdc1394 check
2895 if enabled libdc1394; then
2896     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2897         enable libdc1394_2; } ||
2898     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2899         enable libdc1394_1; } ||
2900     die "ERROR: No version of libdc1394 found "
2901 fi
2902
2903 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2904     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2905     enable sdl &&
2906     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2907 fi
2908
2909 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2910
2911 check_header linux/fb.h
2912 check_header linux/videodev.h
2913 check_header linux/videodev2.h
2914 check_header sys/videoio.h
2915
2916 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2917 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2918 # w32api 3.12 had it defined wrong
2919 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2920
2921 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2922 { check_header dev/bktr/ioctl_meteor.h &&
2923   check_header dev/bktr/ioctl_bt848.h; } ||
2924 { check_header machine/ioctl_meteor.h &&
2925   check_header machine/ioctl_bt848.h; } ||
2926 { check_header dev/video/meteor/ioctl_meteor.h &&
2927   check_header dev/video/bktr/ioctl_bt848.h; } ||
2928 check_header dev/ic/bt8xx.h
2929
2930 check_header sndio.h
2931 check_header sys/soundcard.h
2932 check_header soundcard.h
2933
2934 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2935
2936 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2937
2938 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2939
2940 enabled x11grab                         &&
2941 check_header X11/Xlib.h                 &&
2942 check_header X11/extensions/XShm.h      &&
2943 check_header X11/extensions/Xfixes.h    &&
2944 check_func XOpenDisplay -lX11           &&
2945 check_func XShmCreateImage -lX11 -lXext &&
2946 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2947
2948 if ! disabled vaapi; then
2949     check_lib va/va.h vaInitialize -lva && {
2950         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2951         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
2952     } || disable vaapi
2953 fi
2954
2955 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2956 check_cpp_condition \
2957     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2958     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2959       disable vdpau; }
2960 fi
2961
2962 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2963
2964 # add some useful compiler flags if supported
2965 check_cflags -Wdeclaration-after-statement
2966 check_cflags -Wall
2967 check_cflags -Wno-parentheses
2968 check_cflags -Wno-switch
2969 check_cflags -Wdisabled-optimization
2970 check_cflags -Wpointer-arith
2971 check_cflags -Wredundant-decls
2972 check_cflags -Wno-pointer-sign
2973 check_cflags -Wcast-qual
2974 check_cflags -Wwrite-strings
2975 check_cflags -Wtype-limits
2976 check_cflags -Wundef
2977 check_cflags -Wmissing-prototypes
2978 enabled extra_warnings && check_cflags -Winline
2979
2980 # add some linker flags
2981 check_ldflags -Wl,--warn-common
2982 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'
2983 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2984
2985 echo "X{};" > $TMPV
2986 if test_ldflags -Wl,--version-script,$TMPV; then
2987     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2988     check_cc <<EOF && enable symver_asm_label
2989 void ff_foo(void) __asm__ ("av_foo@VERSION");
2990 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2991 EOF
2992     check_cc <<EOF && enable symver_gnu_asm
2993 __asm__(".symver ff_foo,av_foo@VERSION");
2994 void ff_foo(void) {}
2995 EOF
2996 fi
2997
2998 if enabled small; then
2999     add_cflags $size_cflags
3000     optimizations="small"
3001 elif enabled optimizations; then
3002     add_cflags $speed_cflags
3003 else
3004     add_cflags $noopt_cflags
3005 fi
3006 check_cflags -fno-math-errno
3007 check_cflags -fno-signed-zeros
3008
3009 if enabled icc; then
3010     # Just warnings, no remarks
3011     check_cflags -w1
3012     # -wd: Disable following warnings
3013     # 144, 167, 556: -Wno-pointer-sign
3014     # 1292: attribute "foo" ignored
3015     # 10006: ignoring unknown option -fno-signed-zeros
3016     # 10148: ignoring unknown option -Wno-parentheses
3017     # 10156: ignoring option '-W'; no argument required
3018     check_cflags -wd144,167,556,1292,10006,10148,10156
3019     # 11030: Warning unknown option --as-needed
3020     # 10156: ignoring option '-export'; no argument required
3021     check_ldflags -wd10156,11030
3022     # Allow to compile with optimizations
3023     check_ldflags -march=$cpu
3024     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3025     enable ebp_available
3026     if enabled x86_32; then
3027         test ${icc_version%%.*} -ge 11 && \
3028             check_cflags -falign-stack=maintain-16-byte || \
3029             disable aligned_stack
3030     fi
3031 elif enabled ccc; then
3032     # disable some annoying warnings
3033     add_cflags -msg_disable cvtu32to64
3034     add_cflags -msg_disable embedcomment
3035     add_cflags -msg_disable needconstext
3036     add_cflags -msg_disable nomainieee
3037     add_cflags -msg_disable ptrmismatch1
3038     add_cflags -msg_disable unreachcode
3039 elif enabled gcc; then
3040     check_cflags -fno-tree-vectorize
3041     check_cflags -Werror=implicit-function-declaration
3042     check_cflags -Werror=missing-prototypes
3043 elif enabled llvm_gcc; then
3044     check_cflags -mllvm -stack-alignment=16
3045 elif enabled clang; then
3046     check_cflags -mllvm -stack-alignment=16
3047     check_cflags -Qunused-arguments
3048 elif enabled armcc; then
3049     # 2523: use of inline assembler is deprecated
3050     add_cflags -W${armcc_opt},--diag_suppress=2523
3051     add_cflags -W${armcc_opt},--diag_suppress=1207
3052     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3053     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3054 elif enabled tms470; then
3055     add_cflags -pds=824 -pds=837
3056 elif enabled pathscale; then
3057     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3058 fi
3059
3060 enabled_any $THREADS_LIST      && enable threads
3061
3062 check_deps $CONFIG_LIST       \
3063            $CONFIG_EXTRA      \
3064            $HAVE_LIST         \
3065            $DECODER_LIST      \
3066            $ENCODER_LIST      \
3067            $HWACCEL_LIST      \
3068            $PARSER_LIST       \
3069            $BSF_LIST          \
3070            $DEMUXER_LIST      \
3071            $MUXER_LIST        \
3072            $FILTER_LIST       \
3073            $INDEV_LIST        \
3074            $OUTDEV_LIST       \
3075            $PROTOCOL_LIST     \
3076            $ACODEC_TESTS      \
3077            $VCODEC_TESTS      \
3078            $LAVF_TESTS        \
3079            $LAVFI_TESTS       \
3080            $SEEK_TESTS        \
3081
3082 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3083
3084 echo "install prefix            $prefix"
3085 echo "source path               $source_path"
3086 echo "C compiler                $cc"
3087 echo "ARCH                      $arch ($cpu)"
3088 if test "$build_suffix" != ""; then
3089     echo "build suffix              $build_suffix"
3090 fi
3091 if test "$extra_version" != ""; then
3092     echo "version string suffix     $extra_version"
3093 fi
3094 echo "big-endian                ${bigendian-no}"
3095 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3096 if enabled x86; then
3097     echo "yasm                      ${yasm-no}"
3098     echo "MMX enabled               ${mmx-no}"
3099     echo "MMX2 enabled              ${mmx2-no}"
3100     echo "3DNow! enabled            ${amd3dnow-no}"
3101     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3102     echo "SSE enabled               ${sse-no}"
3103     echo "SSSE3 enabled             ${ssse3-no}"
3104     echo "CMOV enabled              ${cmov-no}"
3105     echo "CMOV is fast              ${fast_cmov-no}"
3106     echo "EBX available             ${ebx_available-no}"
3107     echo "EBP available             ${ebp_available-no}"
3108     echo "10 operands supported     ${ten_operands-no}"
3109 fi
3110 if enabled arm; then
3111     echo "ARMv5TE enabled           ${armv5te-no}"
3112     echo "ARMv6 enabled             ${armv6-no}"
3113     echo "ARMv6T2 enabled           ${armv6t2-no}"
3114     echo "ARM VFP enabled           ${armvfp-no}"
3115     echo "IWMMXT enabled            ${iwmmxt-no}"
3116     echo "NEON enabled              ${neon-no}"
3117 fi
3118 if enabled mips; then
3119     echo "MMI enabled               ${mmi-no}"
3120 fi
3121 if enabled ppc; then
3122     echo "AltiVec enabled           ${altivec-no}"
3123     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3124     echo "dcbzl available           ${dcbzl-no}"
3125 fi
3126 if enabled sparc; then
3127     echo "VIS enabled               ${vis-no}"
3128 fi
3129 echo "debug symbols             ${debug-no}"
3130 echo "optimizations             ${optimizations-no}"
3131 echo "static                    ${static-no}"
3132 echo "shared                    ${shared-no}"
3133 echo "postprocessing support    ${postproc-no}"
3134 echo "new filter support        ${avfilter-no}"
3135 echo "network support           ${network-no}"
3136 echo "threading support         ${thread_type-no}"
3137 echo "SDL support               ${sdl-no}"
3138 echo "Sun medialib support      ${mlib-no}"
3139 echo "AVISynth enabled          ${avisynth-no}"
3140 echo "frei0r enabled            ${frei0r-no}"
3141 echo "libdc1394 support         ${libdc1394-no}"
3142 echo "libdirac enabled          ${libdirac-no}"
3143 echo "libfaac enabled           ${libfaac-no}"
3144 echo "libgsm enabled            ${libgsm-no}"
3145 echo "libmp3lame enabled        ${libmp3lame-no}"
3146 echo "libnut enabled            ${libnut-no}"
3147 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3148 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3149 echo "libopencv support         ${libopencv-no}"
3150 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3151 echo "librtmp enabled           ${librtmp-no}"
3152 echo "libschroedinger enabled   ${libschroedinger-no}"
3153 echo "libspeex enabled          ${libspeex-no}"
3154 echo "libtheora enabled         ${libtheora-no}"
3155 echo "libvorbis enabled         ${libvorbis-no}"
3156 echo "libvpx enabled            ${libvpx-no}"
3157 echo "libx264 enabled           ${libx264-no}"
3158 echo "libxavs enabled           ${libxavs-no}"
3159 echo "libxvid enabled           ${libxvid-no}"
3160 echo "zlib enabled              ${zlib-no}"
3161 echo "bzlib enabled             ${bzlib-no}"
3162 echo
3163
3164 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3165     echo "Enabled ${type}s:"
3166     eval list=\$$(toupper $type)_LIST
3167     print_enabled '_*' $list | sort | pr -r -3 -t
3168     echo
3169 done
3170
3171 license="LGPL version 2.1 or later"
3172 if enabled nonfree; then
3173     license="nonfree and unredistributable"
3174 elif enabled gplv3; then
3175     license="GPL version 3 or later"
3176 elif enabled lgplv3; then
3177     license="LGPL version 3 or later"
3178 elif enabled gpl; then
3179     license="GPL version 2 or later"
3180 fi
3181
3182 echo "License: $license"
3183
3184 echo "Creating config.mak and config.h..."
3185
3186 # build tree in object directory if source path is different from current one
3187 if enabled source_path_used; then
3188     DIRS="
3189         doc
3190         libavcodec
3191         libavcodec/$arch
3192         libavdevice
3193         libavfilter
3194         libavfilter/$arch
3195         libavfilter/libmpcodecs
3196         libavfilter/libmpcodecs/libvo
3197         libavformat
3198         libavutil
3199         libavutil/$arch
3200         libpostproc
3201         libswscale
3202         libswscale/$arch
3203         tests
3204         tools
3205     "
3206     FILES="
3207         Makefile
3208         common.mak
3209         subdir.mak
3210         doc/texi2pod.pl
3211         libavcodec/Makefile
3212         libavcodec/${arch}/Makefile
3213         libavdevice/Makefile
3214         libavfilter/Makefile
3215         libavfilter/${arch}/Makefile
3216         libavformat/Makefile
3217         libavutil/Makefile
3218         libpostproc/Makefile
3219         libswscale/Makefile
3220     "
3221     map 'mkdir -p $v' $DIRS;
3222     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3223 fi
3224
3225 config_files="$TMPH config.mak"
3226
3227 cat > config.mak <<EOF
3228 # Automatically generated by configure - do not modify!
3229 ifndef FFMPEG_CONFIG_MAK
3230 FFMPEG_CONFIG_MAK=1
3231 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3232 prefix=$prefix
3233 LIBDIR=\$(DESTDIR)$libdir
3234 SHLIBDIR=\$(DESTDIR)$shlibdir
3235 INCDIR=\$(DESTDIR)$incdir
3236 BINDIR=\$(DESTDIR)$bindir
3237 DATADIR=\$(DESTDIR)$datadir
3238 MANDIR=\$(DESTDIR)$mandir
3239 SRC_PATH="$source_path"
3240 SRC_PATH_BARE=$source_path
3241 BUILD_ROOT="$PWD"
3242 CC_IDENT=$cc_ident
3243 ARCH=$arch
3244 CC=$cc
3245 AS=$as
3246 LD=$ld
3247 DEPCC=$dep_cc
3248 YASM=$yasmexe
3249 YASMDEP=$yasmexe
3250 AR=$ar
3251 RANLIB=$ranlib
3252 LN_S=$ln_s
3253 CPPFLAGS=$CPPFLAGS
3254 CFLAGS=$CFLAGS
3255 ASFLAGS=$ASFLAGS
3256 CC_O=$CC_O
3257 DLLTOOL=$dlltool
3258 LDFLAGS=$LDFLAGS
3259 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3260 SHFLAGS=$SHFLAGS
3261 YASMFLAGS=$YASMFLAGS
3262 BUILDSUF=$build_suffix
3263 FULLNAME=$FULLNAME
3264 LIBPREF=$LIBPREF
3265 LIBSUF=$LIBSUF
3266 LIBNAME=$LIBNAME
3267 SLIBPREF=$SLIBPREF
3268 SLIBSUF=$SLIBSUF
3269 EXESUF=$EXESUF
3270 EXTRA_VERSION=$extra_version
3271 DEPFLAGS=$DEPFLAGS
3272 CCDEP=$CCDEP
3273 ASDEP=$ASDEP
3274 CC_DEPFLAGS=$CC_DEPFLAGS
3275 AS_DEPFLAGS=$AS_DEPFLAGS
3276 HOSTCC=$host_cc
3277 HOSTCFLAGS=$host_cflags
3278 HOSTEXESUF=$HOSTEXESUF
3279 HOSTLDFLAGS=$host_ldflags
3280 HOSTLIBS=$host_libs
3281 TARGET_EXEC=$target_exec
3282 TARGET_PATH=$target_path
3283 SDL_LIBS=$sdl_libs
3284 SDL_CFLAGS=$sdl_cflags
3285 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3286 EXTRALIBS=$extralibs
3287 INSTALL=install
3288 LIBTARGET=${LIBTARGET}
3289 SLIBNAME=${SLIBNAME}
3290 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3291 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3292 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3293 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3294 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3295 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3296 SAMPLES=${samples:-\$(FATE_SAMPLES)}
3297 EOF
3298
3299 get_version(){
3300     name=$1
3301     file=$source_path/$2
3302     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3303     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3304     lcname=$(tolower $name)
3305     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3306     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3307 }
3308
3309 get_version LIBSWSCALE  libswscale/swscale.h
3310 get_version LIBPOSTPROC libpostproc/postprocess.h
3311 get_version LIBAVCODEC  libavcodec/version.h
3312 get_version LIBAVDEVICE libavdevice/avdevice.h
3313 get_version LIBAVFORMAT libavformat/version.h
3314 get_version LIBAVUTIL   libavutil/avutil.h
3315 get_version LIBAVFILTER libavfilter/avfilter.h
3316
3317 cat > $TMPH <<EOF
3318 /* Automatically generated by configure - do not modify! */
3319 #ifndef FFMPEG_CONFIG_H
3320 #define FFMPEG_CONFIG_H
3321 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3322 #define FFMPEG_LICENSE "$(c_escape $license)"
3323 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3324 #define CC_TYPE "$cc_type"
3325 #define CC_VERSION $cc_version
3326 #define restrict $_restrict
3327 #define EXTERN_PREFIX "${extern_prefix}"
3328 #define EXTERN_ASM ${extern_prefix}
3329 #define SLIBSUF "$SLIBSUF"
3330 EOF
3331
3332 test -n "$malloc_prefix" &&
3333     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3334
3335 if enabled small || disabled optimizations; then
3336     echo "#undef  av_always_inline"  >> $TMPH
3337     if enabled small; then
3338         echo "#define av_always_inline inline"  >> $TMPH
3339     else
3340         echo "#define av_always_inline av_unused"  >> $TMPH
3341     fi
3342 fi
3343
3344 if enabled yasm; then
3345     append config_files $TMPASM
3346     printf '' >$TMPASM
3347 fi
3348
3349 print_config ARCH_   "$config_files" $ARCH_LIST
3350 print_config HAVE_   "$config_files" $HAVE_LIST
3351 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3352                                      $CONFIG_EXTRA      \
3353                                      $DECODER_LIST      \
3354                                      $ENCODER_LIST      \
3355                                      $HWACCEL_LIST      \
3356                                      $PARSER_LIST       \
3357                                      $BSF_LIST          \
3358                                      $DEMUXER_LIST      \
3359                                      $MUXER_LIST        \
3360                                      $FILTER_LIST       \
3361                                      $PROTOCOL_LIST     \
3362                                      $INDEV_LIST        \
3363                                      $OUTDEV_LIST       \
3364
3365 cat >>config.mak <<EOF
3366 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3367 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3368 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3369 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3370 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3371 EOF
3372
3373 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3374 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3375
3376 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3377 cp_if_changed $TMPH config.h
3378 touch .config
3379
3380 enabled yasm && cp_if_changed $TMPASM config.asm
3381
3382 cat > $TMPH <<EOF
3383 /* Generated by ffconf */
3384 #ifndef AVUTIL_AVCONFIG_H
3385 #define AVUTIL_AVCONFIG_H
3386 EOF
3387
3388 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3389
3390 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3391
3392 cp_if_changed $TMPH libavutil/avconfig.h
3393
3394 test -n "$WARNINGS" && printf "\n$WARNINGS"
3395
3396 # build pkg-config files
3397
3398 pkgconfig_generate(){
3399 name=$1
3400 shortname=${name#lib}${build_suffix}
3401 comment=$2
3402 version=$3
3403 libs=$4
3404 requires=$5
3405 enabled ${name#lib} || return 0
3406 cat <<EOF > $name/$name.pc
3407 prefix=$prefix
3408 exec_prefix=\${prefix}
3409 libdir=$libdir
3410 includedir=$incdir
3411
3412 Name: $name
3413 Description: $comment
3414 Version: $version
3415 Requires: $(enabled shared || echo $requires)
3416 Requires.private: $(enabled shared && echo $requires)
3417 Conflicts:
3418 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3419 Libs.private: $(enabled shared && echo $libs)
3420 Cflags: -I\${includedir}
3421 EOF
3422 cat <<EOF > $name/$name-uninstalled.pc
3423 prefix=
3424 exec_prefix=
3425 libdir=\${pcfiledir}
3426 includedir=${source_path}
3427
3428 Name: $name
3429 Description: $comment
3430 Version: $version
3431 Requires: $requires
3432 Conflicts:
3433 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3434 Cflags: -I\${includedir}
3435 EOF
3436 }
3437
3438 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3439 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3440 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3441 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3442 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3443 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3444 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"