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   --disable-postproc       disable libpostproc build
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --enable-gray            enable full grayscale support (slower color)
  98   --disable-swscale-alpha  disable alpha channel support in swscale
  99   --disable-fastdiv        disable table-based division
 100   --enable-small           optimize for size instead of speed
 101   --disable-aandct         disable AAN DCT code
 102   --disable-dct            disable DCT code
 103   --disable-fft            disable FFT code
 104   --disable-golomb         disable Golomb code
 105   --disable-huffman        disable Huffman code
 106   --disable-lpc            disable LPC code
 107   --disable-mdct           disable MDCT code
 108   --disable-rdft           disable RDFT code
 109   --enable-vaapi           enable VAAPI code
 110   --enable-vdpau           enable VDPAU code
 111   --disable-dxva2          disable DXVA2 code
 112   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 113   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 114   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 115   --disable-everything     disable all components listed below
 116   --disable-encoder=NAME   disable encoder NAME
 117   --enable-encoder=NAME    enable encoder NAME
 118   --disable-encoders       disable all encoders
 119   --disable-decoder=NAME   disable decoder NAME
 120   --enable-decoder=NAME    enable decoder NAME
 121   --disable-decoders       disable all decoders
 122   --disable-hwaccel=NAME   disable hwaccel NAME
 123   --enable-hwaccel=NAME    enable hwaccel NAME
 124   --disable-hwaccels       disable all hwaccels
 125   --disable-muxer=NAME     disable muxer NAME
 126   --enable-muxer=NAME      enable muxer NAME
 127   --disable-muxers         disable all muxers
 128   --disable-demuxer=NAME   disable demuxer NAME
 129   --enable-demuxer=NAME    enable demuxer NAME
 130   --disable-demuxers       disable all demuxers
 131   --enable-parser=NAME     enable parser NAME
 132   --disable-parser=NAME    disable parser NAME
 133   --disable-parsers        disable all parsers
 134   --enable-bsf=NAME        enable bitstream filter NAME
 135   --disable-bsf=NAME       disable bitstream filter NAME
 136   --disable-bsfs           disable all bitstream filters
 137   --enable-protocol=NAME   enable protocol NAME
 138   --disable-protocol=NAME  disable protocol NAME
 139   --disable-protocols      disable all protocols
 140   --disable-indev=NAME     disable input device NAME
 141   --disable-outdev=NAME    disable output device NAME
 142   --disable-indevs         disable input devices
 143   --disable-outdevs        disable output devices
 144   --disable-devices        disable all devices
 145   --enable-filter=NAME     enable filter NAME
 146   --disable-filter=NAME    disable filter NAME
 147   --disable-filters        disable all filters
 148   --list-decoders          show all available decoders
 149   --list-encoders          show all available encoders
 150   --list-hwaccels          show all available hardware accelerators
 151   --list-muxers            show all available muxers
 152   --list-demuxers          show all available demuxers
 153   --list-parsers           show all available parsers
 154   --list-protocols         show all available protocols
 155   --list-bsfs              show all available bitstream filters
 156   --list-indevs            show all available input devices
 157   --list-outdevs           show all available output devices
 158   --list-filters           show all available filters
 159
 160 External library support:
 161   --enable-avisynth        enable reading of AVISynth script files [no]
 162   --enable-bzlib           enable bzlib [autodetect]
 163   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
 164   --enable-frei0r          enable frei0r video filtering
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libopencv       enable video filtering via libopencv [no]
 168   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 169                            and libraw1394 [no]
 170   --enable-libdirac        enable Dirac support via libdirac [no]
 171   --enable-libfaac         enable FAAC support via libfaac [no]
 172   --enable-libfreetype     enable libfreetype [no]
 173   --enable-libgsm          enable GSM support via libgsm [no]
 174   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 175   --enable-libnut          enable NUT (de)muxing via libnut,
 176                            native (de)muxer exists [no]
 177   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 178   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 179   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 180   --enable-libspeex        enable Speex decoding via libspeex [no]
 181   --enable-libtheora       enable Theora encoding via libtheora [no]
 182   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 183   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 184   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 185                            native implementation exists [no]
 186   --enable-libvpx          enable VP8 support via libvpx [no]
 187   --enable-libx264         enable H.264 encoding via x264 [no]
 188   --enable-libxavs         enable AVS encoding via xavs [no]
 189   --enable-libxvid         enable Xvid encoding via xvidcore,
 190                            native MPEG-4/Xvid encoder exists [no]
 191   --enable-openal          enable OpenAL 1.1 capture support [no]
 192   --enable-mlib            enable Sun medialib [no]
 193   --enable-zlib            enable zlib [autodetect]
 194
 195 Advanced options (experts only):
 196   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 197   --enable-cross-compile   assume a cross-compiler is used
 198   --sysroot=PATH           root of cross-build tree
 199   --sysinclude=PATH        location of cross-build system headers
 200   --target-os=OS           compiler targets OS [$target_os]
 201   --target-exec=CMD        command to run executables on target
 202   --target-path=DIR        path to view of build directory on target
 203   --nm=NM                  use nm tool
 204   --ar=AR                  use archive tool AR [$ar_default]
 205   --as=AS                  use assembler AS [$as_default]
 206   --cc=CC                  use C compiler CC [$cc_default]
 207   --ld=LD                  use linker LD
 208   --host-cc=HOSTCC         use host C compiler HOSTCC
 209   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 210   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 211   --host-libs=HLIBS        use libs HLIBS when linking for host
 212   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 213   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 214   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 215   --extra-version=STRING   version string suffix []
 216   --build-suffix=SUFFIX    library name suffix []
 217   --arch=ARCH              select architecture [$arch]
 218   --cpu=CPU                select the minimum required CPU (affects
 219                            instruction selection, may crash on older CPUs)
 220   --disable-asm            disable all assembler optimizations
 221   --disable-altivec        disable AltiVec optimizations
 222   --disable-amd3dnow       disable 3DNow! optimizations
 223   --disable-amd3dnowext    disable 3DNow! extended optimizations
 224   --disable-mmx            disable MMX optimizations
 225   --disable-mmx2           disable MMX2 optimizations
 226   --disable-sse            disable SSE optimizations
 227   --disable-ssse3          disable SSSE3 optimizations
 228   --disable-avx            disable AVX optimizations
 229   --disable-armv5te        disable armv5te optimizations
 230   --disable-armv6          disable armv6 optimizations
 231   --disable-armv6t2        disable armv6t2 optimizations
 232   --disable-armvfp         disable ARM VFP optimizations
 233   --disable-iwmmxt         disable iwmmxt optimizations
 234   --disable-mmi            disable MMI optimizations
 235   --disable-neon           disable neon optimizations
 236   --disable-vis            disable VIS optimizations
 237   --disable-yasm           disable use of yasm assembler
 238   --enable-pic             build position-independent code
 239   --malloc-prefix=PFX      prefix malloc and related names with PFX
 240   --enable-sram            allow use of on-chip SRAM
 241   --disable-symver         disable symbol versioning
 242   --optflags               override optimization-related compiler flags
 243
 244 Developer options (useful when working on FFmpeg itself):
 245   --disable-debug          disable debugging symbols
 246   --enable-debug=LEVEL     set the debug level [$debuglevel]
 247   --disable-optimizations  disable compiler optimizations
 248   --enable-extra-warnings  enable more compiler warnings
 249   --disable-stripping      disable stripping of executables and shared libraries
 250   --samples=PATH           location of test samples for FATE, if not set use
 251                            \$FATE_SAMPLES at make invocation time.
 252
 253 NOTE: Object files are built at the place where configure is launched.
 254 EOF
 255   exit 0
 256 }
 257
 258 quotes='""'
 259
 260 log(){
 261     echo "$@" >> $logfile
 262 }
 263
 264 log_file(){
 265     log BEGIN $1
 266     pr -n -t $1 >> $logfile
 267     log END $1
 268 }
 269
 270 echolog(){
 271     log "$@"
 272     echo "$@"
 273 }
 274
 275 warn(){
 276     log "WARNING: $*"
 277     WARNINGS="${WARNINGS}WARNING: $*\n"
 278 }
 279
 280 die(){
 281     echolog "$@"
 282     cat <<EOF
 283
 284 If you think configure made a mistake, make sure you are using the latest
 285 version from Git.  If the latest version fails, report the problem to the
 286 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 287 EOF
 288     if disabled logging; then
 289         cat <<EOF
 290 Rerun configure with logging enabled (do not use --disable-logging), and
 291 include the log this produces with your report.
 292 EOF
 293     else
 294 cat <<EOF
 295 Include the log file "$logfile" produced by configure as this will help
 296 solving the problem.
 297 EOF
 298     fi
 299     exit 1
 300 }
 301
 302 # Avoid locale weirdness, besides we really just want to translate ASCII.
 303 toupper(){
 304     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 305 }
 306
 307 tolower(){
 308     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 309 }
 310
 311 c_escape(){
 312     echo "$*" | sed 's/["\\]/\\\0/g'
 313 }
 314
 315 sh_quote(){
 316     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 317     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 318     echo "$v"
 319 }
 320
 321 cleanws(){
 322     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 323 }
 324
 325 filter(){
 326     pat=$1
 327     shift
 328     for v; do
 329         eval "case $v in $pat) echo $v ;; esac"
 330     done
 331 }
 332
 333 filter_out(){
 334     pat=$1
 335     shift
 336     for v; do
 337         eval "case $v in $pat) ;; *) echo $v ;; esac"
 338     done
 339 }
 340
 341 map(){
 342     m=$1
 343     shift
 344     for v; do eval $m; done
 345 }
 346
 347 set_all(){
 348     value=$1
 349     shift
 350     for var in $*; do
 351         eval $var=$value
 352     done
 353 }
 354
 355 set_weak(){
 356     value=$1
 357     shift
 358     for var; do
 359         eval : \${$var:=$value}
 360     done
 361 }
 362
 363 set_safe(){
 364     var=$1
 365     shift
 366     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 367 }
 368
 369 get_safe(){
 370     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 371 }
 372
 373 pushvar(){
 374     for var in $*; do
 375         eval level=\${${var}_level:=0}
 376         eval ${var}_${level}="\$$var"
 377         eval ${var}_level=$(($level+1))
 378     done
 379 }
 380
 381 popvar(){
 382     for var in $*; do
 383         eval level=\${${var}_level:-0}
 384         test $level = 0 && continue
 385         eval level=$(($level-1))
 386         eval $var="\${${var}_${level}}"
 387         eval ${var}_level=$level
 388         eval unset ${var}_${level}
 389     done
 390 }
 391
 392 enable(){
 393     set_all yes $*
 394 }
 395
 396 disable(){
 397     set_all no $*
 398 }
 399
 400 enable_weak(){
 401     set_weak yes $*
 402 }
 403
 404 disable_weak(){
 405     set_weak no $*
 406 }
 407
 408 enable_safe(){
 409     for var; do
 410         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 411     done
 412 }
 413
 414 disable_safe(){
 415     for var; do
 416         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 417     done
 418 }
 419
 420 do_enable_deep(){
 421     for var; do
 422         enabled $var && continue
 423         eval sel="\$${var}_select"
 424         eval sgs="\$${var}_suggest"
 425         pushvar var sgs
 426         enable_deep $sel
 427         popvar sgs
 428         enable_deep_weak $sgs
 429         popvar var
 430     done
 431 }
 432
 433 enable_deep(){
 434     do_enable_deep $*
 435     enable $*
 436 }
 437
 438 enable_deep_weak(){
 439     do_enable_deep $*
 440     enable_weak $*
 441 }
 442
 443 enabled(){
 444     test "${1#!}" = "$1" && op== || op=!=
 445     eval test "x\$${1#!}" $op "xyes"
 446 }
 447
 448 disabled(){
 449     test "${1#!}" = "$1" && op== || op=!=
 450     eval test "x\$${1#!}" $op "xno"
 451 }
 452
 453 enabled_all(){
 454     for opt; do
 455         enabled $opt || return 1
 456     done
 457 }
 458
 459 disabled_all(){
 460     for opt; do
 461         disabled $opt || return 1
 462     done
 463 }
 464
 465 enabled_any(){
 466     for opt; do
 467         enabled $opt && return 0
 468     done
 469 }
 470
 471 disabled_any(){
 472     for opt; do
 473         disabled $opt && return 0
 474     done
 475     return 1
 476 }
 477
 478 set_default(){
 479     for opt; do
 480         eval : \${$opt:=\$${opt}_default}
 481     done
 482 }
 483
 484 is_in(){
 485     value=$1
 486     shift
 487     for var in $*; do
 488         [ $var = $value ] && return 0
 489     done
 490     return 1
 491 }
 492
 493 check_deps(){
 494     for cfg; do
 495         cfg="${cfg#!}"
 496         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 497         disabled ${cfg}_checking && continue
 498         enable ${cfg}_checking
 499
 500         eval dep_all="\$${cfg}_deps"
 501         eval dep_any="\$${cfg}_deps_any"
 502         eval dep_sel="\$${cfg}_select"
 503         eval dep_sgs="\$${cfg}_suggest"
 504         eval dep_ifa="\$${cfg}_if"
 505         eval dep_ifn="\$${cfg}_if_any"
 506
 507         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 508         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 509         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 510
 511         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 512         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 513         enabled_all  $dep_all || disable $cfg
 514         enabled_any  $dep_any || disable $cfg
 515         disabled_any $dep_sel && disable $cfg
 516
 517         if enabled $cfg; then
 518             eval dep_extralibs="\$${cfg}_extralibs"
 519             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 520             enable_deep $dep_sel
 521             enable_deep_weak $dep_sgs
 522         fi
 523
 524         disable ${cfg}_checking
 525     done
 526 }
 527
 528 print_config_h(){
 529     enabled $1 && v=1 || v=0
 530     echo "#define $2 $v"
 531 }
 532
 533 print_config_mak(){
 534     enabled $1 && v= || v=!
 535     echo "$v$2=yes"
 536 }
 537
 538 print_config_asm(){
 539     enabled $1 && echo "%define $2"
 540 }
 541
 542 print_config(){
 543     pfx=$1
 544     files=$2
 545     shift 2
 546     for cfg; do
 547         ucname="$(toupper $cfg)"
 548         for f in $files; do
 549             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 550         done
 551     done
 552 }
 553
 554 print_enabled(){
 555     test "$1" = -n && end=" " && shift || end="\n"
 556     suf=$1
 557     shift
 558     for v; do
 559         enabled $v && printf "%s$end" ${v%$suf};
 560     done
 561 }
 562
 563 append(){
 564     var=$1
 565     shift
 566     eval "$var=\"\$$var $*\""
 567 }
 568
 569 prepend(){
 570     var=$1
 571     shift
 572     eval "$var=\"$* \$$var\""
 573 }
 574
 575 add_cppflags(){
 576     append CPPFLAGS $($filter_cppflags "$@")
 577 }
 578
 579 add_cflags(){
 580     append CFLAGS $($filter_cflags "$@")
 581 }
 582
 583 add_asflags(){
 584     append ASFLAGS $($filter_asflags "$@")
 585 }
 586
 587 add_ldflags(){
 588     append LDFLAGS "$@"
 589 }
 590
 591 add_extralibs(){
 592     prepend extralibs "$@"
 593 }
 594
 595 check_cmd(){
 596     log "$@"
 597     "$@" >> $logfile 2>&1
 598 }
 599
 600 check_cc(){
 601     log check_cc "$@"
 602     cat > $TMPC
 603     log_file $TMPC
 604     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 605 }
 606
 607 check_cpp(){
 608     log check_cpp "$@"
 609     cat > $TMPC
 610     log_file $TMPC
 611     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 612 }
 613
 614 check_as(){
 615     log check_as "$@"
 616     cat > $TMPC
 617     log_file $TMPC
 618     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 619 }
 620
 621 check_asm(){
 622     log check_asm "$@"
 623     name="$1"
 624     code="$2"
 625     shift 2
 626     disable $name
 627     check_as "$@" <<EOF && enable $name
 628 void foo(void){ __asm__ volatile($code); }
 629 EOF
 630 }
 631
 632 check_yasm(){
 633     log check_yasm "$@"
 634     echo "$1" > $TMPS
 635     log_file $TMPS
 636     shift 1
 637     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 638 }
 639
 640 check_ld(){
 641     log check_ld "$@"
 642     flags=''
 643     libs=''
 644     for f; do
 645         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 646     done
 647     check_cc $($filter_cflags $flags) || return
 648     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 649 }
 650
 651 check_cppflags(){
 652     log check_cppflags "$@"
 653     set -- $($filter_cppflags "$@")
 654     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 655 int x;
 656 EOF
 657 }
 658
 659 check_cflags(){
 660     log check_cflags "$@"
 661     set -- $($filter_cflags "$@")
 662     check_cc "$@" <<EOF && append CFLAGS "$@"
 663 int x;
 664 EOF
 665 }
 666
 667 test_ldflags(){
 668     log test_ldflags "$@"
 669     check_ld "$@" <<EOF
 670 int main(void){ return 0; }
 671 EOF
 672 }
 673
 674 check_ldflags(){
 675     log check_ldflags "$@"
 676     test_ldflags "$@" && add_ldflags "$@"
 677 }
 678
 679 check_header(){
 680     log check_header "$@"
 681     header=$1
 682     shift
 683     disable_safe $header
 684     check_cpp "$@" <<EOF && enable_safe $header
 685 #include <$header>
 686 int x;
 687 EOF
 688 }
 689
 690 check_func(){
 691     log check_func "$@"
 692     func=$1
 693     shift
 694     disable $func
 695     check_ld "$@" <<EOF && enable $func
 696 extern int $func();
 697 int main(void){ $func(); }
 698 EOF
 699 }
 700
 701 check_mathfunc(){
 702     log check_mathfunc "$@"
 703     func=$1
 704     shift
 705     disable $func
 706     check_ld "$@" <<EOF && enable $func
 707 #include <math.h>
 708 float foo(float f) { return $func(f); }
 709 int main(void){ return 0; }
 710 EOF
 711 }
 712
 713 check_func_headers(){
 714     log check_func_headers "$@"
 715     headers=$1
 716     funcs=$2
 717     shift 2
 718     {
 719         for hdr in $headers; do
 720             echo "#include <$hdr>"
 721         done
 722         for func in $funcs; do
 723             echo "long check_$func(void) { return (long) $func; }"
 724         done
 725         echo "int main(void) { return 0; }"
 726     } | check_ld "$@" && enable $funcs && enable_safe $headers
 727 }
 728
 729 check_cpp_condition(){
 730     log check_cpp_condition "$@"
 731     header=$1
 732     condition=$2
 733     shift 2
 734     check_cpp $($filter_cppflags "$@") <<EOF
 735 #include <$header>
 736 #if !($condition)
 737 #error "unsatisfied condition: $condition"
 738 #endif
 739 EOF
 740 }
 741
 742 check_lib(){
 743     log check_lib "$@"
 744     header="$1"
 745     func="$2"
 746     shift 2
 747     check_header $header && check_func $func "$@" && add_extralibs "$@"
 748 }
 749
 750 check_lib2(){
 751     log check_lib2 "$@"
 752     headers="$1"
 753     funcs="$2"
 754     shift 2
 755     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 756 }
 757
 758 check_pkg_config(){
 759     log check_pkg_config "$@"
 760     pkg="$1"
 761     headers="$2"
 762     funcs="$3"
 763     shift 3
 764     $pkg_config --exists $pkg 2>/dev/null || return
 765     pkg_cflags=$($pkg_config --cflags $pkg)
 766     pkg_libs=$($pkg_config --libs $pkg)
 767     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 768         set_safe ${pkg}_cflags $pkg_cflags   &&
 769         set_safe ${pkg}_libs   $pkg_libs
 770 }
 771
 772 check_exec(){
 773     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 774 }
 775
 776 check_exec_crash(){
 777     code=$(cat)
 778
 779     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 780     # are safe but may not be available everywhere.  Thus we use
 781     # raise(SIGTERM) instead.  The check is run in a subshell so we
 782     # can redirect the "Terminated" message from the shell.  SIGBUS
 783     # is not defined by standard C so it is used conditionally.
 784
 785     (check_exec "$@") >> $logfile 2>&1 <<EOF
 786 #include <signal.h>
 787 static void sighandler(int sig){
 788     raise(SIGTERM);
 789 }
 790 int main(void){
 791     signal(SIGILL, sighandler);
 792     signal(SIGFPE, sighandler);
 793     signal(SIGSEGV, sighandler);
 794 #ifdef SIGBUS
 795     signal(SIGBUS, sighandler);
 796 #endif
 797     { $code }
 798 }
 799 EOF
 800 }
 801
 802 check_type(){
 803     log check_type "$@"
 804     headers=$1
 805     type=$2
 806     shift 2
 807     disable_safe "$type"
 808     incs=""
 809     for hdr in $headers; do
 810         incs="$incs
 811 #include <$hdr>"
 812     done
 813     check_cc "$@" <<EOF && enable_safe "$type"
 814 $incs
 815 $type v;
 816 EOF
 817 }
 818
 819 check_struct(){
 820     log check_type "$@"
 821     headers=$1
 822     struct=$2
 823     member=$3
 824     shift 3
 825     disable_safe "${struct}_${member}"
 826     incs=""
 827     for hdr in $headers; do
 828         incs="$incs
 829 #include <$hdr>"
 830     done
 831     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 832 $incs
 833 const void *p = &(($struct *)0)->$member;
 834 EOF
 835 }
 836
 837 require(){
 838     name="$1"
 839     header="$2"
 840     func="$3"
 841     shift 3
 842     check_lib $header $func "$@" || die "ERROR: $name not found"
 843 }
 844
 845 require2(){
 846     name="$1"
 847     headers="$2"
 848     func="$3"
 849     shift 3
 850     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 851 }
 852
 853 require_pkg_config(){
 854     pkg="$1"
 855     check_pkg_config "$@" || die "ERROR: $pkg not found"
 856     add_cflags    $(get_safe ${pkg}_cflags)
 857     add_extralibs $(get_safe ${pkg}_libs)
 858 }
 859
 860 check_host_cc(){
 861     log check_host_cc "$@"
 862     cat > $TMPC
 863     log_file $TMPC
 864     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 865 }
 866
 867 check_host_cflags(){
 868     log check_host_cflags "$@"
 869     check_host_cc "$@" <<EOF && append host_cflags "$@"
 870 int x;
 871 EOF
 872 }
 873
 874 apply(){
 875     file=$1
 876     shift
 877     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 878 }
 879
 880 cp_if_changed(){
 881     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 882     mkdir -p "$(dirname $2)"
 883     cp -f "$1" "$2"
 884 }
 885
 886 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 887 # system-dependent things.
 888
 889 COMPONENT_LIST="
 890     bsfs
 891     decoders
 892     demuxers
 893     encoders
 894     filters
 895     hwaccels
 896     indevs
 897     muxers
 898     outdevs
 899     parsers
 900     protocols
 901 "
 902
 903 CONFIG_LIST="
 904     $COMPONENT_LIST
 905     aandct
 906     ac3dsp
 907     avcodec
 908     avdevice
 909     avfilter
 910     avformat
 911     avisynth
 912     bzlib
 913     crystalhd
 914     dct
 915     doc
 916     dwt
 917     dxva2
 918     fastdiv
 919     ffmpeg
 920     ffplay
 921     ffprobe
 922     ffserver
 923     fft
 924     frei0r
 925     golomb
 926     gpl
 927     gray
 928     h264dsp
 929     h264pred
 930     hardcoded_tables
 931     huffman
 932     libcelt
 933     libdc1394
 934     libdirac
 935     libfaac
 936     libfreetype
 937     libgsm
 938     libmp3lame
 939     libnut
 940     libopencore_amrnb
 941     libopencore_amrwb
 942     libopencv
 943     libopenjpeg
 944     librtmp
 945     libschroedinger
 946     libspeex
 947     libtheora
 948     libvo_aacenc
 949     libvo_amrwbenc
 950     libvorbis
 951     libvpx
 952     libx264
 953     libxavs
 954     libxvid
 955     lpc
 956     lsp
 957     mdct
 958     memalign_hack
 959     mlib
 960     mpegaudiodsp
 961     network
 962     nonfree
 963     openal
 964     pic
 965     postproc
 966     rdft
 967     rtpdec
 968     runtime_cpudetect
 969     shared
 970     sinewin
 971     small
 972     sram
 973     static
 974     swscale
 975     swscale_alpha
 976     thumb
 977     vaapi
 978     vdpau
 979     version3
 980     x11grab
 981     zlib
 982 "
 983
 984 THREADS_LIST='
 985     pthreads
 986     w32threads
 987 '
 988
 989 ARCH_LIST='
 990     alpha
 991     arm
 992     avr32
 993     avr32_ap
 994     avr32_uc
 995     bfin
 996     ia64
 997     m68k
 998     mips
 999     mips64
1000     parisc
1001     ppc
1002     ppc64
1003     s390
1004     sh4
1005     sparc
1006     sparc64
1007     tomi
1008     x86
1009     x86_32
1010     x86_64
1011 '
1012
1013 ARCH_EXT_LIST='
1014     altivec
1015     amd3dnow
1016     amd3dnowext
1017     armv5te
1018     armv6
1019     armv6t2
1020     armvfp
1021     avx
1022     iwmmxt
1023     mmi
1024     mmx
1025     mmx2
1026     neon
1027     ppc4xx
1028     sse
1029     ssse3
1030     vfpv3
1031     vis
1032 '
1033
1034 HAVE_LIST_PUB='
1035     bigendian
1036     fast_unaligned
1037 '
1038
1039 HAVE_LIST="
1040     $ARCH_EXT_LIST
1041     $HAVE_LIST_PUB
1042     $THREADS_LIST
1043     aligned_stack
1044     alsa_asoundlib_h
1045     altivec_h
1046     arpa_inet_h
1047     attribute_may_alias
1048     attribute_packed
1049     bswap
1050     closesocket
1051     cmov
1052     dcbzl
1053     dev_bktr_ioctl_bt848_h
1054     dev_bktr_ioctl_meteor_h
1055     dev_ic_bt8xx_h
1056     dev_video_meteor_ioctl_meteor_h
1057     dev_video_bktr_ioctl_bt848_h
1058     dlfcn_h
1059     dlopen
1060     dos_paths
1061     ebp_available
1062     ebx_available
1063     exp2
1064     exp2f
1065     fast_64bit
1066     fast_clz
1067     fast_cmov
1068     fcntl
1069     fork
1070     getaddrinfo
1071     gethrtime
1072     GetProcessMemoryInfo
1073     GetProcessTimes
1074     getrusage
1075     gnu_as
1076     struct_rusage_ru_maxrss
1077     ibm_asm
1078     inet_aton
1079     inline_asm
1080     isatty
1081     kbhit
1082     ldbrx
1083     llrint
1084     llrintf
1085     local_aligned_16
1086     local_aligned_8
1087     localtime_r
1088     log2
1089     log2f
1090     loongson
1091     lrint
1092     lrintf
1093     lzo1x_999_compress
1094     machine_ioctl_bt848_h
1095     machine_ioctl_meteor_h
1096     malloc_h
1097     MapViewOfFile
1098     memalign
1099     mkstemp
1100     mmap
1101     posix_memalign
1102     round
1103     roundf
1104     sdl
1105     sdl_video_size
1106     setmode
1107     sndio_h
1108     socklen_t
1109     soundcard_h
1110     poll_h
1111     setrlimit
1112     strerror_r
1113     strtok_r
1114     struct_addrinfo
1115     struct_ipv6_mreq
1116     struct_sockaddr_in6
1117     struct_sockaddr_sa_len
1118     struct_sockaddr_storage
1119     symver
1120     symver_gnu_asm
1121     symver_asm_label
1122     sys_mman_h
1123     sys_resource_h
1124     sys_select_h
1125     sys_soundcard_h
1126     sys_videoio_h
1127     termios_h
1128     threads
1129     trunc
1130     truncf
1131     vfp_args
1132     VirtualAlloc
1133     winsock2_h
1134     xform_asm
1135     xmm_clobbers
1136     yasm
1137 "
1138
1139 # options emitted with CONFIG_ prefix but not available on command line
1140 CONFIG_EXTRA="
1141     avutil
1142     gplv3
1143     lgplv3
1144 "
1145
1146 CMDLINE_SELECT="
1147     $ARCH_EXT_LIST
1148     $CONFIG_LIST
1149     $THREADS_LIST
1150     asm
1151     cross_compile
1152     debug
1153     extra_warnings
1154     logging
1155     optimizations
1156     stripping
1157     symver
1158     yasm
1159 "
1160
1161 PATHS_LIST='
1162     bindir
1163     datadir
1164     incdir
1165     libdir
1166     mandir
1167     prefix
1168     shlibdir
1169 '
1170
1171 CMDLINE_SET="
1172     $PATHS_LIST
1173     ar
1174     arch
1175     as
1176     build_suffix
1177     cc
1178     cpu
1179     cross_prefix
1180     dep_cc
1181     extra_version
1182     host_cc
1183     host_cflags
1184     host_ldflags
1185     host_libs
1186     host_os
1187     install
1188     ld
1189     logfile
1190     malloc_prefix
1191     nm
1192     optflags
1193     pkg_config
1194     samples
1195     strip
1196     sysinclude
1197     sysroot
1198     target_exec
1199     target_os
1200     target_path
1201 "
1202
1203 CMDLINE_APPEND="
1204     extra_cflags
1205 "
1206
1207 # code dependency declarations
1208
1209 # architecture extensions
1210
1211 armv5te_deps="arm"
1212 armv6_deps="arm"
1213 armv6t2_deps="arm"
1214 armvfp_deps="arm"
1215 iwmmxt_deps="arm"
1216 neon_deps="arm"
1217 vfpv3_deps="armvfp"
1218
1219 mmi_deps="mips"
1220
1221 altivec_deps="ppc"
1222 ppc4xx_deps="ppc"
1223
1224 vis_deps="sparc"
1225
1226 x86_64_suggest="cmov fast_cmov"
1227 amd3dnow_deps="mmx"
1228 amd3dnowext_deps="amd3dnow"
1229 mmx_deps="x86"
1230 mmx2_deps="mmx"
1231 sse_deps="mmx"
1232 ssse3_deps="sse"
1233 avx_deps="ssse3"
1234
1235 aligned_stack_if_any="ppc x86"
1236 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1237 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1238 fast_unaligned_if_any="armv6 ppc x86"
1239
1240 need_memalign="altivec neon sse"
1241 inline_asm_deps="!tms470"
1242
1243 symver_if_any="symver_asm_label symver_gnu_asm"
1244
1245 # subsystems
1246 dct_select="rdft"
1247 mdct_select="fft"
1248 rdft_select="fft"
1249 mpegaudiodsp_select="dct"
1250
1251 # decoders / encoders / hardware accelerators
1252 aac_decoder_select="mdct sinewin"
1253 aac_encoder_select="mdct sinewin"
1254 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1255 ac3_decoder_select="mdct ac3dsp ac3_parser"
1256 ac3_encoder_select="mdct ac3dsp"
1257 ac3_fixed_encoder_select="mdct ac3dsp"
1258 alac_encoder_select="lpc"
1259 amrnb_decoder_select="lsp"
1260 amrwb_decoder_select="lsp"
1261 atrac1_decoder_select="mdct sinewin"
1262 atrac3_decoder_select="mdct"
1263 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1264 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1265 cavs_decoder_select="golomb"
1266 cook_decoder_select="mdct sinewin"
1267 cscd_decoder_suggest="zlib"
1268 dca_decoder_select="mdct"
1269 dnxhd_encoder_select="aandct"
1270 dxa_decoder_select="zlib"
1271 eac3_decoder_select="ac3_decoder"
1272 eac3_encoder_select="mdct ac3dsp"
1273 eamad_decoder_select="aandct"
1274 eatgq_decoder_select="aandct"
1275 eatqi_decoder_select="aandct"
1276 ffv1_decoder_select="golomb"
1277 flac_decoder_select="golomb"
1278 flac_encoder_select="golomb lpc"
1279 flashsv_decoder_select="zlib"
1280 flashsv_encoder_select="zlib"
1281 flashsv2_encoder_select="zlib"
1282 flv_decoder_select="h263_decoder"
1283 flv_encoder_select="h263_encoder"
1284 fraps_decoder_select="huffman"
1285 h261_encoder_select="aandct"
1286 h263_decoder_select="h263_parser"
1287 h263_encoder_select="aandct"
1288 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1289 h263i_decoder_select="h263_decoder"
1290 h263p_encoder_select="h263_encoder"
1291 h264_decoder_select="golomb h264dsp h264pred"
1292 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1293 h264_dxva2_hwaccel_deps="dxva2api_h"
1294 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1295 h264_vaapi_hwaccel_select="vaapi"
1296 h264_vdpau_decoder_select="vdpau h264_decoder"
1297 imc_decoder_select="fft mdct sinewin"
1298 jpegls_decoder_select="golomb"
1299 jpegls_encoder_select="golomb"
1300 ljpeg_encoder_select="aandct"
1301 loco_decoder_select="golomb"
1302 mjpeg_encoder_select="aandct"
1303 mlp_decoder_select="mlp_parser"
1304 mp1_decoder_select="mpegaudiodsp"
1305 mp2_decoder_select="mpegaudiodsp"
1306 mp3adu_decoder_select="mpegaudiodsp"
1307 mp3_decoder_select="mpegaudiodsp"
1308 mp3on4_decoder_select="mpegaudiodsp"
1309 mp1float_decoder_select="mpegaudiodsp"
1310 mp2float_decoder_select="mpegaudiodsp"
1311 mp3adufloat_decoder_select="mpegaudiodsp"
1312 mp3float_decoder_select="mpegaudiodsp"
1313 mp3on4float_decoder_select="mpegaudiodsp"
1314 mpeg1video_encoder_select="aandct"
1315 mpeg2video_encoder_select="aandct"
1316 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1317 mpeg4_encoder_select="h263_encoder"
1318 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1319 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1320 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1321 mpeg2_crystalhd_decoder_select="crystalhd"
1322 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1323 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1324 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1325 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1326 mpeg4_crystalhd_decoder_select="crystalhd"
1327 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1328 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1329 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1330 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1331 msmpeg4_crystalhd_decoder_select="crystalhd"
1332 msmpeg4v1_decoder_select="h263_decoder"
1333 msmpeg4v1_encoder_select="h263_encoder"
1334 msmpeg4v2_decoder_select="h263_decoder"
1335 msmpeg4v2_encoder_select="h263_encoder"
1336 msmpeg4v3_decoder_select="h263_decoder"
1337 msmpeg4v3_encoder_select="h263_encoder"
1338 nellymoser_decoder_select="mdct sinewin"
1339 nellymoser_encoder_select="mdct sinewin"
1340 png_decoder_select="zlib"
1341 png_encoder_select="zlib"
1342 qcelp_decoder_select="lsp"
1343 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1344 ra_144_encoder_select="lpc"
1345 rv10_decoder_select="h263_decoder"
1346 rv10_encoder_select="h263_encoder"
1347 rv20_decoder_select="h263_decoder"
1348 rv20_encoder_select="h263_encoder"
1349 rv30_decoder_select="golomb h264pred"
1350 rv40_decoder_select="golomb h264pred"
1351 shorten_decoder_select="golomb"
1352 sipr_decoder_select="lsp"
1353 snow_decoder_select="dwt"
1354 snow_encoder_select="aandct dwt"
1355 sonic_decoder_select="golomb"
1356 sonic_encoder_select="golomb"
1357 sonic_ls_encoder_select="golomb"
1358 svq1_encoder_select="aandct"
1359 svq3_decoder_select="golomb h264dsp h264pred"
1360 svq3_decoder_suggest="zlib"
1361 theora_decoder_select="vp3_decoder"
1362 tiff_decoder_suggest="zlib"
1363 tiff_encoder_suggest="zlib"
1364 truehd_decoder_select="mlp_decoder"
1365 tscc_decoder_select="zlib"
1366 twinvq_decoder_select="mdct lsp sinewin"
1367 vc1_decoder_select="h263_decoder"
1368 vc1_crystalhd_decoder_select="crystalhd"
1369 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1370 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1371 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1372 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1373 vorbis_decoder_select="mdct"
1374 vorbis_encoder_select="mdct"
1375 vp6_decoder_select="huffman"
1376 vp6a_decoder_select="vp6_decoder"
1377 vp6f_decoder_select="vp6_decoder"
1378 vp8_decoder_select="h264pred"
1379 wmapro_decoder_select="mdct sinewin"
1380 wmav1_decoder_select="mdct sinewin"
1381 wmav1_encoder_select="mdct sinewin"
1382 wmav2_decoder_select="mdct sinewin"
1383 wmav2_encoder_select="mdct sinewin"
1384 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1385 wmv1_decoder_select="h263_decoder"
1386 wmv1_encoder_select="h263_encoder"
1387 wmv2_decoder_select="h263_decoder"
1388 wmv2_encoder_select="h263_encoder"
1389 wmv3_decoder_select="vc1_decoder"
1390 wmv3_crystalhd_decoder_select="crystalhd"
1391 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1392 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1393 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1394 zlib_decoder_select="zlib"
1395 zlib_encoder_select="zlib"
1396 zmbv_decoder_select="zlib"
1397 zmbv_encoder_select="zlib"
1398
1399 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1400 vaapi_deps="va_va_h"
1401 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1402
1403 # parsers
1404 h264_parser_select="golomb h264dsp h264pred"
1405
1406 # external libraries
1407 libcelt_decoder_deps="libcelt"
1408 libdirac_decoder_deps="libdirac !libschroedinger"
1409 libdirac_encoder_deps="libdirac"
1410 libfaac_encoder_deps="libfaac"
1411 libgsm_decoder_deps="libgsm"
1412 libgsm_encoder_deps="libgsm"
1413 libgsm_ms_decoder_deps="libgsm"
1414 libgsm_ms_encoder_deps="libgsm"
1415 libmp3lame_encoder_deps="libmp3lame"
1416 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1417 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1418 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1419 libopenjpeg_decoder_deps="libopenjpeg"
1420 libschroedinger_decoder_deps="libschroedinger"
1421 libschroedinger_encoder_deps="libschroedinger"
1422 libspeex_decoder_deps="libspeex"
1423 libtheora_encoder_deps="libtheora"
1424 libvo_aacenc_encoder_deps="libvo_aacenc"
1425 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1426 libvorbis_encoder_deps="libvorbis"
1427 libvpx_decoder_deps="libvpx"
1428 libvpx_encoder_deps="libvpx"
1429 libx264_encoder_deps="libx264"
1430 libxavs_encoder_deps="libxavs"
1431 libxvid_encoder_deps="libxvid"
1432
1433 # demuxers / muxers
1434 ac3_demuxer_select="ac3_parser"
1435 asf_stream_muxer_select="asf_muxer"
1436 avisynth_demuxer_deps="avisynth"
1437 dirac_demuxer_select="dirac_parser"
1438 eac3_demuxer_select="ac3_parser"
1439 flac_demuxer_select="flac_parser"
1440 ipod_muxer_select="mov_muxer"
1441 libnut_demuxer_deps="libnut"
1442 libnut_muxer_deps="libnut"
1443 matroska_audio_muxer_select="matroska_muxer"
1444 matroska_demuxer_suggest="zlib bzlib"
1445 mov_demuxer_suggest="zlib"
1446 mp3_demuxer_select="mpegaudio_parser"
1447 mp4_muxer_select="mov_muxer"
1448 mpegtsraw_demuxer_select="mpegts_demuxer"
1449 mxf_d10_muxer_select="mxf_muxer"
1450 ogg_demuxer_select="golomb"
1451 psp_muxer_select="mov_muxer"
1452 rtp_demuxer_select="sdp_demuxer"
1453 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1454 rtsp_demuxer_select="http_protocol rtpdec"
1455 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1456 sap_demuxer_select="sdp_demuxer"
1457 sap_muxer_select="rtp_muxer rtp_protocol"
1458 sdp_demuxer_select="rtpdec"
1459 spdif_muxer_select="aac_parser"
1460 tg2_muxer_select="mov_muxer"
1461 tgp_muxer_select="mov_muxer"
1462 w64_demuxer_deps="wav_demuxer"
1463
1464 # indevs / outdevs
1465 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1466 alsa_outdev_deps="alsa_asoundlib_h"
1467 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1468 dshow_indev_deps="IBaseFilter"
1469 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1470 dv1394_indev_deps="dv1394 dv_demuxer"
1471 fbdev_indev_deps="linux_fb_h"
1472 jack_indev_deps="jack_jack_h sem_timedwait"
1473 libdc1394_indev_deps="libdc1394"
1474 openal_indev_deps="openal"
1475 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1476 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1477 sdl_outdev_deps="sdl"
1478 sndio_indev_deps="sndio_h"
1479 sndio_outdev_deps="sndio_h"
1480 v4l_indev_deps="linux_videodev_h"
1481 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1482 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1483 vfwcap_indev_extralibs="-lavicap32"
1484 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1485 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1486
1487 # protocols
1488 gopher_protocol_deps="network"
1489 http_protocol_deps="network"
1490 http_protocol_select="tcp_protocol"
1491 mmsh_protocol_select="http_protocol"
1492 mmst_protocol_deps="network"
1493 rtmp_protocol_select="tcp_protocol"
1494 rtp_protocol_select="udp_protocol"
1495 tcp_protocol_deps="network"
1496 udp_protocol_deps="network"
1497
1498 # filters
1499 blackframe_filter_deps="gpl"
1500 cropdetect_filter_deps="gpl"
1501 drawtext_filter_deps="libfreetype"
1502 frei0r_filter_deps="frei0r dlopen strtok_r"
1503 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1504 hqdn3d_filter_deps="gpl"
1505 movie_filter_deps="avcodec avformat"
1506 mp_filter_deps="gpl avcodec"
1507 negate_filter_deps="lut_filter"
1508 ocv_filter_deps="libopencv"
1509 scale_filter_deps="swscale"
1510 yadif_filter_deps="gpl"
1511
1512 # libraries
1513 avdevice_deps="avcodec avformat"
1514 avformat_deps="avcodec"
1515 postproc_deps="gpl"
1516
1517 # programs
1518 ffmpeg_deps="avcodec avformat swscale"
1519 ffmpeg_select="buffer_filter buffersink_filter"
1520 ffplay_deps="avcodec avformat swscale sdl"
1521 ffplay_select="buffersink_filter rdft"
1522 ffprobe_deps="avcodec avformat"
1523 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1524 ffserver_extralibs='$ldl'
1525
1526 doc_deps="texi2html"
1527
1528 # tests
1529
1530 test_deps(){
1531     suf1=$1
1532     suf2=$2
1533     shift 2
1534     for v; do
1535         dep=${v%=*}
1536         tests=${v#*=}
1537         for name in ${tests}; do
1538             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1539         done
1540     done
1541 }
1542
1543 test_deps _encoder _decoder                                             \
1544     adpcm_g726=g726                                                     \
1545     adpcm_ima_qt                                                        \
1546     adpcm_ima_wav                                                       \
1547     adpcm_ms                                                            \
1548     adpcm_swf                                                           \
1549     adpcm_yamaha=adpcm_yam                                              \
1550     alac                                                                \
1551     asv1                                                                \
1552     asv2                                                                \
1553     bmp                                                                 \
1554     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1555     dvvideo="dv dv50"                                                   \
1556     ffv1                                                                \
1557     flac                                                                \
1558     flashsv                                                             \
1559     flv                                                                 \
1560     gif                                                                 \
1561     h261                                                                \
1562     h263="h263 h263p"                                                   \
1563     huffyuv                                                             \
1564     jpegls                                                              \
1565     mjpeg="jpg mjpeg ljpeg"                                             \
1566     mp2                                                                 \
1567     mpeg1video="mpeg mpeg1b"                                            \
1568     mpeg2video="mpeg2 mpeg2thread"                                      \
1569     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1570     msmpeg4v3=msmpeg4                                                   \
1571     msmpeg4v2                                                           \
1572     pbm=pbmpipe                                                         \
1573     pcx                                                                 \
1574     pgm="pgm pgmpipe"                                                   \
1575     png                                                                 \
1576     ppm="ppm ppmpipe"                                                   \
1577     rawvideo="rgb yuv"                                                  \
1578     roq                                                                 \
1579     rv10                                                                \
1580     rv20                                                                \
1581     sgi                                                                 \
1582     snow="snow snowll"                                                  \
1583     svq1                                                                \
1584     targa=tga                                                           \
1585     tiff                                                                \
1586     wmav1                                                               \
1587     wmav2                                                               \
1588     wmv1                                                                \
1589     wmv2                                                                \
1590
1591 test_deps _muxer _demuxer                                               \
1592     aiff                                                                \
1593     pcm_alaw=alaw                                                       \
1594     asf                                                                 \
1595     au                                                                  \
1596     avi                                                                 \
1597     dv=dv_fmt                                                           \
1598     ffm                                                                 \
1599     flv=flv_fmt                                                         \
1600     gxf                                                                 \
1601     matroska=mkv                                                        \
1602     mmf                                                                 \
1603     mov                                                                 \
1604     pcm_mulaw=mulaw                                                     \
1605     mxf                                                                 \
1606     nut                                                                 \
1607     ogg                                                                 \
1608     rawvideo=pixfmt                                                     \
1609     rm                                                                  \
1610     swf                                                                 \
1611     mpegts=ts                                                           \
1612     voc                                                                 \
1613     wav                                                                 \
1614     yuv4mpegpipe=yuv4mpeg                                               \
1615
1616 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1617 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1618
1619 # default parameters
1620
1621 logfile="config.log"
1622
1623 # installation paths
1624 prefix_default="/usr/local"
1625 bindir_default='${prefix}/bin'
1626 datadir_default='${prefix}/share/ffmpeg'
1627 incdir_default='${prefix}/include'
1628 libdir_default='${prefix}/lib'
1629 mandir_default='${prefix}/share/man'
1630 shlibdir_default="$libdir_default"
1631
1632 # toolchain
1633 ar_default="ar"
1634 cc_default="gcc"
1635 cc_version=\"unknown\"
1636 host_cc_default="gcc"
1637 install="install"
1638 ln_s="ln -sf"
1639 nm_default="nm"
1640 objformat="elf"
1641 pkg_config_default=pkg-config
1642 ranlib="ranlib"
1643 strip_default="strip"
1644 yasmexe="yasm"
1645 nogas=":"
1646
1647 nm_opts='-g'
1648
1649 # machine
1650 arch_default=$(uname -m)
1651 cpu="generic"
1652
1653 # OS
1654 target_os_default=$(tolower $(uname -s))
1655 host_os=$target_os_default
1656
1657 # configurable options
1658 enable avcodec
1659 enable avdevice
1660 enable avfilter
1661 enable avformat
1662 enable avutil
1663 enable asm
1664 enable debug
1665 enable doc
1666 enable fastdiv
1667 enable ffmpeg
1668 enable ffplay
1669 enable ffprobe
1670 enable ffserver
1671 enable network
1672 enable optimizations
1673 enable postproc
1674 enable protocols
1675 enable static
1676 enable stripping
1677 enable swscale
1678 enable swscale_alpha
1679
1680 # build settings
1681 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1682 FFSERVERLDFLAGS=-Wl,-E
1683 LIBPREF="lib"
1684 LIBSUF=".a"
1685 FULLNAME='$(NAME)$(BUILDSUF)'
1686 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1687 SLIBPREF="lib"
1688 SLIBSUF=".so"
1689 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1690 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1691 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1692 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1693
1694 AS_O='-o $@'
1695 CC_O='-o $@'
1696
1697 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1698 host_libs='-lm'
1699
1700 target_path='$(CURDIR)'
1701
1702 # since the object filename is not given with the -MM flag, the compiler
1703 # is only able to print the basename, and we must add the path ourselves
1704 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1705 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1706
1707 # find source path
1708 if test -f configure; then
1709     source_path=.
1710 else
1711     source_path=$(cd $(dirname "$0"); pwd)
1712     echo "$source_path" | grep -q '[[:blank:]]' &&
1713         die "Out of tree builds are impossible with whitespace in source path."
1714     test -e "$source_path/config.h" &&
1715         die "Out of tree builds are impossible with config.h in source dir."
1716 fi
1717
1718 for v in "$@"; do
1719     r=${v#*=}
1720     l=${v%"$r"}
1721     r=$(sh_quote "$r")
1722     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1723 done
1724
1725 find_things(){
1726     thing=$1
1727     pattern=$2
1728     file=$source_path/$3
1729     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1730 }
1731
1732 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1733 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1734 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1735 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1736 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1737 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1738 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1739 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1740 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1741 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1742 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1743
1744 find_tests(){
1745     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1746 }
1747
1748 ACODEC_TESTS=$(find_tests acodec)
1749 VCODEC_TESTS=$(find_tests vsynth1)
1750 LAVF_TESTS=$(find_tests lavf)
1751 LAVFI_TESTS=$(find_tests lavfi)
1752 SEEK_TESTS=$(find_tests seek seek_)
1753
1754 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1755
1756 for n in $COMPONENT_LIST; do
1757     v=$(toupper ${n%s})_LIST
1758     eval enable \$$v
1759     eval ${n}_if_any="\$$v"
1760 done
1761
1762 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1763
1764 die_unknown(){
1765     echo "Unknown option \"$1\"."
1766     echo "See $0 --help for available options."
1767     exit 1
1768 }
1769
1770 show_list() {
1771     suffix=_$1
1772     shift
1773     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1774     exit 0
1775 }
1776
1777 for opt do
1778     optval="${opt#*=}"
1779     case "$opt" in
1780     --extra-ldflags=*) add_ldflags $optval
1781     ;;
1782     --extra-libs=*) add_extralibs $optval
1783     ;;
1784     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1785     ;;
1786     --enable-debug=*) debuglevel="$optval"
1787     ;;
1788     --disable-everything)
1789     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1790     ;;
1791     --enable-*=*|--disable-*=*)
1792     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1793     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1794     eval list=\$$(toupper $thing)_LIST
1795     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1796     $action $(filter "$name" $list)
1797     ;;
1798     --enable-?*|--disable-?*)
1799     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1800     if is_in $option $COMPONENT_LIST; then
1801         test $action = disable && action=unset
1802         eval $action \$$(toupper ${option%s})_LIST
1803     elif is_in $option $CMDLINE_SELECT; then
1804         $action $option
1805     else
1806         die_unknown $opt
1807     fi
1808     ;;
1809     --list-*)
1810         NAME="${opt#--list-}"
1811         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1812         NAME=${NAME%s}
1813         eval show_list $NAME \$$(toupper $NAME)_LIST
1814     ;;
1815     --help|-h) show_help
1816     ;;
1817     *)
1818     optname="${opt%%=*}"
1819     optname="${optname#--}"
1820     optname=$(echo "$optname" | sed 's/-/_/g')
1821     if is_in $optname $CMDLINE_SET; then
1822         eval $optname='$optval'
1823     elif is_in $optname $CMDLINE_APPEND; then
1824         append $optname "$optval"
1825     else
1826          die_unknown $opt
1827     fi
1828     ;;
1829     esac
1830 done
1831
1832 disabled logging && logfile=/dev/null
1833
1834 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1835 set >> $logfile
1836
1837 test -n "$cross_prefix" && enable cross_compile
1838
1839 if enabled cross_compile; then
1840     test -n "$arch" && test -n "$target_os" ||
1841         die "Must specify target arch and OS when cross-compiling"
1842 fi
1843
1844 set_default arch target_os
1845
1846 ar_default="${cross_prefix}${ar_default}"
1847 cc_default="${cross_prefix}${cc_default}"
1848 nm_default="${cross_prefix}${nm_default}"
1849 pkg_config_default="${cross_prefix}${pkg_config_default}"
1850 ranlib="${cross_prefix}${ranlib}"
1851 strip_default="${cross_prefix}${strip_default}"
1852
1853 sysinclude_default="${sysroot}/usr/include"
1854
1855 set_default cc nm pkg_config strip sysinclude
1856 enabled cross_compile || host_cc_default=$cc
1857 set_default host_cc
1858
1859 if ! $pkg_config --version >/dev/null 2>&1; then
1860     warn "$pkg_config not found, library detection may fail."
1861     pkg_config=false
1862 fi
1863
1864 exesuf() {
1865     case $1 in
1866         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1867     esac
1868 }
1869
1870 EXESUF=$(exesuf $target_os)
1871 HOSTEXESUF=$(exesuf $host_os)
1872
1873 # set temporary file name
1874 : ${TMPDIR:=$TEMPDIR}
1875 : ${TMPDIR:=$TMP}
1876 : ${TMPDIR:=/tmp}
1877
1878 if ! check_cmd mktemp -u XXXXXX; then
1879     # simple replacement for missing mktemp
1880     # NOT SAFE FOR GENERAL USE
1881     mktemp(){
1882         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1883     }
1884 fi
1885
1886 tmpfile(){
1887     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1888         (set -C; exec > $tmp) 2>/dev/null ||
1889         die "Unable to create temporary file in $TMPDIR."
1890     append TMPFILES $tmp
1891     eval $1=$tmp
1892 }
1893
1894 trap 'rm -f -- $TMPFILES' EXIT
1895
1896 tmpfile TMPC  .c
1897 tmpfile TMPE  $EXESUF
1898 tmpfile TMPH  .h
1899 tmpfile TMPO  .o
1900 tmpfile TMPS  .S
1901 tmpfile TMPV  .ver
1902 tmpfile TMPSH .sh
1903 tmpfile TMPASM .asm
1904
1905 unset -f mktemp
1906
1907 chmod +x $TMPE
1908
1909 # make sure we can execute files in $TMPDIR
1910 cat > $TMPSH 2>> $logfile <<EOF
1911 #! /bin/sh
1912 EOF
1913 chmod +x $TMPSH >> $logfile 2>&1
1914 if ! $TMPSH >> $logfile 2>&1; then
1915     cat <<EOF
1916 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1917 variable to another directory and make sure that it is not mounted noexec.
1918 EOF
1919     die "Sanity test failed."
1920 fi
1921
1922 filter_cflags=echo
1923 filter_cppflags=echo
1924 filter_asflags=echo
1925
1926 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1927     cc_type=llvm_gcc
1928     cc_version=__VERSION__
1929     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1930     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1931     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1932     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1933     speed_cflags='-O3'
1934     size_cflags='-Os'
1935 elif $cc -v 2>&1 | grep -qi ^gcc; then
1936     cc_type=gcc
1937     cc_version=__VERSION__
1938     gcc_version=$($cc --version | head -n1)
1939     gcc_basever=$($cc -dumpversion)
1940     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1941     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1942     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1943     if ! $cc -dumpversion | grep -q '^2\.'; then
1944         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1945         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1946     fi
1947     speed_cflags='-O3'
1948     size_cflags='-Os'
1949 elif $cc --version 2>/dev/null | grep -q Intel; then
1950     cc_type=icc
1951     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1952     cc_ident=$($cc --version | head -n1)
1953     icc_version=$($cc -dumpversion)
1954     CC_DEPFLAGS='-MMD'
1955     AS_DEPFLAGS='-MMD'
1956     speed_cflags='-O3'
1957     size_cflags='-Os'
1958     noopt_cflags='-O1'
1959 elif $cc -v 2>&1 | grep -q xlc; then
1960     cc_type=xlc
1961     cc_version="AV_STRINGIFY(__IBMC__)"
1962     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1963     speed_cflags='-O5'
1964     size_cflags='-O5 -qcompact'
1965 elif $cc -V 2>/dev/null | grep -q Compaq; then
1966     cc_type=ccc
1967     cc_version="AV_STRINGIFY(__DECC_VER)"
1968     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1969     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1970     debuglevel=3
1971     add_ldflags -Wl,-z,now # calls to libots crash without this
1972     speed_cflags='-fast'
1973     size_cflags='-O1'
1974 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1975     test -d "$sysroot" || die "No valid sysroot specified."
1976     cc_type=armcc
1977     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1978     cc_ident=$($cc --vsn | head -n1)
1979     armcc_conf="$PWD/armcc.conf"
1980     $cc --arm_linux_configure                 \
1981         --arm_linux_config_file="$armcc_conf" \
1982         --configure_sysroot="$sysroot"        \
1983         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1984         die "Error creating armcc configuration file."
1985     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1986     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1987     as_default="${cross_prefix}gcc"
1988     CC_DEPFLAGS='-MMD'
1989     AS_DEPFLAGS='-MMD'
1990     speed_cflags='-O3'
1991     size_cflags='-Os'
1992     filter_asflags="filter_out -W${armcc_opt}*"
1993 elif $cc -version 2>/dev/null | grep -q TMS470; then
1994     cc_type=tms470
1995     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1996     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1997     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1998     CC_O='-fr=$(@D)'
1999     as_default="${cross_prefix}gcc"
2000     ld_default="${cross_prefix}gcc"
2001     TMPO=$(basename $TMPC .c).o
2002     append TMPFILES $TMPO
2003     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2004     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2005     AS_DEPFLAGS='-MMD'
2006     speed_cflags='-O3 -mf=5'
2007     size_cflags='-O3 -mf=2'
2008     filter_cflags=tms470_flags
2009     tms470_flags(){
2010         for flag; do
2011             case $flag in
2012                 -march=*|-mcpu=*)
2013                     case "${flag#*=}" in
2014                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2015                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2016                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2017                         armv6*|arm11*)          echo -mv=6   ;;
2018                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2019                                                 echo -mv=5e  ;;
2020                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2021                     esac
2022                     ;;
2023                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2024                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2025                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2026                 -msoft-float)   echo --float_support=vfplib       ;;
2027                 -O[0-3]|-mf=*)  echo $flag                        ;;
2028                 -g)             echo -g -mn                       ;;
2029                 -pds=*)         echo $flag                        ;;
2030             esac
2031         done
2032     }
2033 elif $cc -v 2>&1 | grep -q clang; then
2034     cc_type=clang
2035     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2036         cc_version=__clang_version__ || cc_version=__VERSION__
2037     cc_ident=$($cc --version | head -n1)
2038     CC_DEPFLAGS='-MMD'
2039     AS_DEPFLAGS='-MMD'
2040     speed_cflags='-O3'
2041     size_cflags='-Os'
2042 elif $cc -V 2>&1 | grep -q Sun; then
2043     cc_type=suncc
2044     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2045     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2046     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2047     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2048     speed_cflags='-O5'
2049     size_cflags='-O5 -xspace'
2050     filter_cflags=suncc_flags
2051     suncc_flags(){
2052         for flag; do
2053             case $flag in
2054                 -march=*|-mcpu=*)
2055                     case "${flag#*=}" in
2056                         native)                   echo -xtarget=native       ;;
2057                         v9|niagara)               echo -xarch=sparc          ;;
2058                         ultrasparc)               echo -xarch=sparcvis       ;;
2059                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2060                         i586|pentium)             echo -xchip=pentium        ;;
2061                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2062                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2063                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2064                         pentium4*)          echo -xtarget=pentium4           ;;
2065                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2066                         *-sse3)             echo -xarch=sse3                 ;;
2067                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2068                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2069                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2070                         k8|opteron|athlon64|athlon-fx)
2071                                                   echo -xarch=sse2a          ;;
2072                         athlon*)                  echo -xarch=pentium_proa   ;;
2073                     esac
2074                     ;;
2075                 -std=c99)             echo -xc99              ;;
2076                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2077                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2078                 -W*,*)                echo $flag              ;;
2079                 -f*-*|-W*)                                    ;;
2080                 *)                    echo $flag              ;;
2081             esac
2082         done
2083     }
2084 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2085     cc_type=pathscale
2086     cc_version=__PATHSCALE__
2087     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2088     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2089     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2090     speed_cflags='-O2'
2091     size_cflags='-Os'
2092     filter_cflags='filter_out -Wdisabled-optimization'
2093 elif $cc -v 2>&1 | grep -q Open64; then
2094     cc_type=open64
2095     cc_version=__OPEN64__
2096     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2097     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2098     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2099     speed_cflags='-O2'
2100     size_cflags='-Os'
2101     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2102 fi
2103
2104 test -n "$cc_type" && enable $cc_type ||
2105     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2106
2107 : ${as_default:=$cc}
2108 : ${dep_cc_default:=$cc}
2109 : ${ld_default:=$cc}
2110 set_default ar as dep_cc ld
2111
2112 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2113 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2114
2115 add_cflags $extra_cflags
2116 add_asflags $extra_cflags
2117
2118 if test -n "$sysroot"; then
2119     case "$cc_type" in
2120         gcc|llvm_gcc|clang)
2121             add_cppflags --sysroot="$sysroot"
2122             add_ldflags --sysroot="$sysroot"
2123         ;;
2124         tms470)
2125             add_cppflags -I"$sysinclude"
2126             add_ldflags  --sysroot="$sysroot"
2127         ;;
2128     esac
2129 fi
2130
2131 if test "$cpu" = host; then
2132     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2133
2134     case "$cc_type" in
2135         gcc|llvm_gcc)
2136             check_native(){
2137                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2138                 sed -n "/$1=/{
2139                             s/.*$1=\\([^ ]*\\).*/\\1/
2140                             p
2141                             q
2142                         }" $TMPE
2143             }
2144             cpu=$(check_native -march || check_native -mcpu)
2145         ;;
2146     esac
2147
2148     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2149 fi
2150
2151 # Deal with common $arch aliases
2152 case "$arch" in
2153     arm*)
2154         arch="arm"
2155     ;;
2156     mips|mipsel|IP*)
2157         arch="mips"
2158     ;;
2159     mips64*)
2160         arch="mips"
2161         subarch="mips64"
2162     ;;
2163     parisc|hppa)
2164         arch="parisc"
2165     ;;
2166     parisc64|hppa64)
2167         arch="parisc"
2168         subarch="parisc64"
2169     ;;
2170     "Power Macintosh"|ppc|powerpc)
2171         arch="ppc"
2172     ;;
2173     ppc64|powerpc64)
2174         arch="ppc"
2175         subarch="ppc64"
2176     ;;
2177     s390|s390x)
2178         arch="s390"
2179     ;;
2180     sh4|sh)
2181         arch="sh4"
2182     ;;
2183     sun4u|sparc64)
2184         arch="sparc"
2185         subarch="sparc64"
2186     ;;
2187     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2188         arch="x86"
2189     ;;
2190 esac
2191
2192 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2193 enable $arch
2194
2195 # Add processor-specific flags
2196 if test "$cpu" = generic; then
2197     : do nothing
2198 elif enabled ppc; then
2199
2200     case $(tolower $cpu) in
2201         601|ppc601|powerpc601)
2202             cpuflags="-mcpu=601"
2203             disable altivec
2204         ;;
2205         603*|ppc603*|powerpc603*)
2206             cpuflags="-mcpu=603"
2207             disable altivec
2208         ;;
2209         604*|ppc604*|powerpc604*)
2210             cpuflags="-mcpu=604"
2211             disable altivec
2212         ;;
2213         g3|75*|ppc75*|powerpc75*)
2214             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2215             disable altivec
2216         ;;
2217         g4|745*|ppc745*|powerpc745*)
2218             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2219         ;;
2220         74*|ppc74*|powerpc74*)
2221             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2222         ;;
2223         g5|970|ppc970|powerpc970|power4*)
2224             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2225         ;;
2226         cell)
2227             cpuflags="-mcpu=cell"
2228             enable ldbrx
2229         ;;
2230         e500v2)
2231             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2232             disable altivec
2233         ;;
2234         e500)
2235             cpuflags="-mcpu=8540 -mhard-float"
2236             disable altivec
2237         ;;
2238     esac
2239
2240 elif enabled x86; then
2241
2242     case $cpu in
2243         i[345]86|pentium)
2244             cpuflags="-march=$cpu"
2245             disable mmx
2246         ;;
2247         # targets that do NOT support conditional mov (cmov)
2248         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2249             cpuflags="-march=$cpu"
2250             disable cmov
2251         ;;
2252         # targets that do support conditional mov (cmov)
2253         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2254             cpuflags="-march=$cpu"
2255             enable cmov
2256             enable fast_cmov
2257         ;;
2258         # targets that do support conditional mov but on which it's slow
2259         pentium4|pentium4m|prescott|nocona)
2260             cpuflags="-march=$cpu"
2261             enable cmov
2262             disable fast_cmov
2263         ;;
2264     esac
2265
2266 elif enabled sparc; then
2267
2268     case $cpu in
2269         niagara)
2270             cpuflags="-mcpu=$cpu"
2271             disable vis
2272         ;;
2273         sparc64)
2274             cpuflags="-mcpu=v9"
2275         ;;
2276     esac
2277
2278 elif enabled arm; then
2279
2280     case $cpu in
2281         armv*)
2282             cpuflags="-march=$cpu"
2283             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2284         ;;
2285         *)
2286             cpuflags="-mcpu=$cpu"
2287             case $cpu in
2288                 cortex-a*)                               subarch=armv7a  ;;
2289                 cortex-r*)                               subarch=armv7r  ;;
2290                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2291                 arm11*)                                  subarch=armv6   ;;
2292                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2293                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2294             esac
2295         ;;
2296     esac
2297
2298 elif enabled alpha; then
2299
2300     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2301
2302 elif enabled bfin; then
2303
2304     cpuflags="-mcpu=$cpu"
2305
2306 elif enabled mips; then
2307
2308     cpuflags="-march=$cpu"
2309
2310 elif enabled avr32; then
2311
2312     case $cpu in
2313         ap7[02]0[0-2])
2314             subarch="avr32_ap"
2315             cpuflags="-mpart=$cpu"
2316         ;;
2317         ap)
2318             subarch="avr32_ap"
2319             cpuflags="-march=$cpu"
2320         ;;
2321         uc3[ab]*)
2322             subarch="avr32_uc"
2323             cpuflags="-mcpu=$cpu"
2324         ;;
2325         uc)
2326             subarch="avr32_uc"
2327             cpuflags="-march=$cpu"
2328         ;;
2329     esac
2330
2331 fi
2332
2333 add_cflags $cpuflags
2334 add_asflags $cpuflags
2335
2336 # compiler sanity check
2337 check_exec <<EOF
2338 int main(void){ return 0; }
2339 EOF
2340 if test "$?" != 0; then
2341     echo "$cc is unable to create an executable file."
2342     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2343         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2344         echo "Only do this if you know what cross compiling means."
2345     fi
2346     die "C compiler test failed."
2347 fi
2348
2349 add_cppflags -D_ISOC99_SOURCE
2350 check_cflags -std=c99
2351 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2352 #include <stdlib.h>
2353 EOF
2354 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2355 #include <stdlib.h>
2356 EOF
2357
2358 check_host_cflags -std=c99
2359 check_host_cflags -Wall
2360
2361 case "$arch" in
2362     alpha|ia64|mips|parisc|sparc)
2363         spic=$shared
2364     ;;
2365     x86)
2366         subarch="x86_32"
2367         check_cc <<EOF && subarch="x86_64"
2368         int test[(int)sizeof(char*) - 7];
2369 EOF
2370         if test "$subarch" = "x86_64"; then
2371             spic=$shared
2372         fi
2373     ;;
2374 esac
2375
2376 enable $subarch
2377 enabled spic && enable pic
2378
2379 # OS specific
2380 case $target_os in
2381     haiku)
2382         prefix_default="/boot/common"
2383         network_extralibs="-lnetwork"
2384         host_libs=
2385         ;;
2386     sunos)
2387         FFSERVERLDFLAGS=""
2388         SHFLAGS='-shared -Wl,-h,$$(@F)'
2389         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2390         network_extralibs="-lsocket -lnsl"
2391         add_cppflags -D__EXTENSIONS__
2392         nm_opts='-P -g'
2393         ;;
2394     netbsd)
2395         disable symver
2396         oss_indev_extralibs="-lossaudio"
2397         oss_outdev_extralibs="-lossaudio"
2398         ;;
2399     openbsd)
2400         enable malloc_aligned
2401         # On OpenBSD 4.5. the compiler does not use PIC unless
2402         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2403         # however the generated executable will not do anything
2404         # (simply quits with exit-code 1, no crash, no output).
2405         # Thus explicitly enable PIC here.
2406         enable pic
2407         disable symver
2408         SHFLAGS='-shared'
2409         oss_indev_extralibs="-lossaudio"
2410         oss_outdev_extralibs="-lossaudio"
2411         ;;
2412     dragonfly)
2413         enable malloc_aligned
2414         disable symver
2415         ;;
2416     freebsd)
2417         enable malloc_aligned
2418         ;;
2419     bsd/os)
2420         add_extralibs -lpoll -lgnugetopt
2421         strip="strip -d"
2422         ;;
2423     darwin)
2424         enable malloc_aligned
2425         gas="gas-preprocessor.pl $cc"
2426         enabled ppc && add_asflags -force_cpusubtype_ALL
2427         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2428         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2429         strip="${strip} -x"
2430         add_ldflags -Wl,-dynamic,-search_paths_first
2431         SLIBSUF=".dylib"
2432         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2433         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2434         FFSERVERLDFLAGS=-Wl,-bind_at_load
2435         objformat="macho"
2436         enabled x86_64 && objformat="macho64"
2437         enabled_any pic shared ||
2438             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2439         ;;
2440     mingw32*)
2441         if test $target_os = "mingw32ce"; then
2442             disable network
2443         else
2444             target_os=mingw32
2445         fi
2446         LIBTARGET=i386
2447         if enabled x86_64; then
2448             enable malloc_aligned
2449             LIBTARGET=x64
2450         elif enabled arm; then
2451             LIBTARGET=arm-wince
2452         fi
2453         shlibdir_default="$bindir_default"
2454         SLIBPREF=""
2455         SLIBSUF=".dll"
2456         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2457         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2458         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2459         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2460             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2461             install -d "$(LIBDIR)"; \
2462             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2463         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2464         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'
2465         objformat="win32"
2466         enable dos_paths
2467         check_cflags -fno-common
2468         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2469                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2470                 die "ERROR: MinGW runtime version must be >= 3.15."
2471         add_cppflags -U__STRICT_ANSI__
2472         ;;
2473     cygwin*)
2474         target_os=cygwin
2475         shlibdir_default="$bindir_default"
2476         SLIBPREF="cyg"
2477         SLIBSUF=".dll"
2478         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2479         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2480         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2481         objformat="win32"
2482         enable dos_paths
2483         check_cflags -fno-common
2484         add_cppflags -U__STRICT_ANSI__
2485         ;;
2486     *-dos|freedos|opendos)
2487         network_extralibs="-lsocket"
2488         objformat="coff"
2489         enable dos_paths
2490         add_cppflags -U__STRICT_ANSI__
2491         ;;
2492     linux)
2493         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2494         enable dv1394
2495         ;;
2496     irix*)
2497         target_os=irix
2498         ranlib="echo ignoring ranlib"
2499         ;;
2500     os/2*)
2501         strip="lxlite -CS"
2502         ln_s="cp -f"
2503         objformat="aout"
2504         add_cppflags -D_GNU_SOURCE
2505         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2506         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2507         FFSERVERLDFLAGS=""
2508         LIBSUF="_s.a"
2509         SLIBPREF=""
2510         SLIBSUF=".dll"
2511         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2512         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2513         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2514           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2515           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2516           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2517           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2518           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2519         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2520           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2521         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2522         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2523         enable dos_paths
2524         ;;
2525     gnu/kfreebsd)
2526         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2527         ;;
2528     gnu)
2529         ;;
2530     qnx)
2531         add_cppflags -D_QNX_SOURCE
2532         network_extralibs="-lsocket"
2533         ;;
2534     symbian)
2535         SLIBSUF=".dll"
2536         enable dos_paths
2537         add_cflags --include=$sysinclude/gcce/gcce.h
2538         ;;
2539     none)
2540         ;;
2541     *)
2542         die "Unknown OS '$target_os'."
2543         ;;
2544 esac
2545
2546 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2547
2548 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2549
2550 set_default $PATHS_LIST
2551
2552 # we need to build at least one lib type
2553 if ! enabled_any static shared; then
2554     cat <<EOF
2555 At least one library type must be built.
2556 Specify --enable-static to build the static libraries or --enable-shared to
2557 build the shared libraries as well. To only build the shared libraries specify
2558 --disable-static in addition to --enable-shared.
2559 EOF
2560     exit 1;
2561 fi
2562
2563 disabled static && LIBNAME=""
2564
2565 die_license_disabled() {
2566     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2567 }
2568
2569 die_license_disabled gpl libx264
2570 die_license_disabled gpl libxavs
2571 die_license_disabled gpl libxvid
2572 die_license_disabled gpl x11grab
2573
2574 die_license_disabled nonfree libfaac
2575
2576 die_license_disabled version3 libopencore_amrnb
2577 die_license_disabled version3 libopencore_amrwb
2578 die_license_disabled version3 libvo_aacenc
2579 die_license_disabled version3 libvo_amrwbenc
2580
2581 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2582
2583 disabled optimizations || check_cflags -fomit-frame-pointer
2584
2585 enable_pic() {
2586     enable pic
2587     add_cppflags -DPIC
2588     add_cflags   -fPIC
2589     add_asflags  -fPIC
2590 }
2591
2592 enabled pic && enable_pic
2593
2594 check_cc <<EOF || die "Symbol mangling check failed."
2595 int ff_extern;
2596 EOF
2597 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2598 extern_prefix=${sym%%ff_extern*}
2599
2600 check_cc <<EOF && enable inline_asm
2601 void foo(void) { __asm__ volatile ("" ::); }
2602 EOF
2603
2604 _restrict=
2605 for restrict_keyword in restrict __restrict__ __restrict; do
2606     check_cc <<EOF && _restrict=$restrict_keyword && break
2607 void foo(char * $restrict_keyword p);
2608 EOF
2609 done
2610
2611 check_cc <<EOF && enable attribute_packed
2612 struct { int x; } __attribute__((packed)) x;
2613 EOF
2614
2615 check_cc <<EOF && enable attribute_may_alias
2616 union { int x; } __attribute__((may_alias)) x;
2617 EOF
2618
2619 check_cc <<EOF || die "endian test failed"
2620 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2621 EOF
2622 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2623
2624 if enabled alpha; then
2625
2626     check_cflags -mieee
2627
2628 elif enabled arm; then
2629
2630     enabled thumb && check_cflags -mthumb || check_cflags -marm
2631     nogas=die
2632
2633     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2634         enable vfp_args
2635     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2636         case "${cross_prefix:-$cc}" in
2637             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2638             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2639 __asm__ (".eabi_attribute 28, 1");
2640 int main(void) { return 0; }
2641 EOF
2642         esac
2643         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2644     fi
2645
2646     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2647     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2648     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2649     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2650     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2651     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2652     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2653
2654     enabled_all armv6t2 shared !pic && enable_pic
2655
2656 elif enabled mips; then
2657
2658     check_asm loongson '"dmult.g $1, $2, $3"'
2659     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2660
2661 elif enabled ppc; then
2662
2663     enable local_aligned_8 local_aligned_16
2664
2665     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2666     check_asm ibm_asm   '"add 0, 0, 0"'
2667     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2668     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2669
2670     # AltiVec flags: The FSF version of GCC differs from the Apple version
2671     if enabled altivec; then
2672         nogas=warn
2673         check_cflags -maltivec -mabi=altivec &&
2674         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2675         check_cflags -faltivec
2676
2677         # check if our compiler supports Motorola AltiVec C API
2678         check_cc <<EOF || disable altivec
2679 $inc_altivec_h
2680 int main(void) {
2681     vector signed int v1, v2, v3;
2682     v1 = vec_add(v2,v3);
2683     return 0;
2684 }
2685 EOF
2686
2687         # check if our compiler supports braces for vector declarations
2688         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2689 $inc_altivec_h
2690 int main (void) { (vector int) {1}; return 0; }
2691 EOF
2692     fi
2693
2694 elif enabled sparc; then
2695
2696     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2697         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2698
2699 elif enabled x86; then
2700
2701     enable local_aligned_8 local_aligned_16
2702
2703     # check whether EBP is available on x86
2704     # As 'i' is stored on the stack, this program will crash
2705     # if the base pointer is used to access it because the
2706     # base pointer is cleared in the inline assembly code.
2707     check_exec_crash <<EOF && enable ebp_available
2708     volatile int i=0;
2709     __asm__ volatile (
2710         "xorl %%ebp, %%ebp"
2711     ::: "%ebp");
2712     return i;
2713 EOF
2714
2715     # check whether EBX is available on x86
2716     check_asm ebx_available '""::"b"(0)' &&
2717         check_asm ebx_available '"":::"%ebx"'
2718
2719     # check whether xmm clobbers are supported
2720     check_asm xmm_clobbers '"":::"%xmm0"'
2721
2722     # check whether binutils is new enough to compile SSSE3/MMX2
2723     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2724     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2725
2726     check_asm bswap '"bswap %%eax" ::: "%eax"'
2727
2728     if ! disabled_any asm mmx yasm; then
2729         if check_cmd $yasmexe --version; then
2730             enabled x86_64 && yasm_extra="-m amd64"
2731             yasm_debug="-g dwarf2"
2732         elif check_cmd nasm -v; then
2733             yasmexe=nasm
2734             yasm_debug="-g -F dwarf"
2735             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2736         fi
2737
2738         YASMFLAGS="-f $objformat $yasm_extra"
2739         enabled pic               && append YASMFLAGS "-DPIC"
2740         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2741         case "$objformat" in
2742             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2743         esac
2744
2745         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2746             die "yasm not found, use --disable-yasm for a crippled build"
2747         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2748     fi
2749
2750     case "$cpu" in
2751         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2752             disable fast_clz
2753         ;;
2754     esac
2755
2756 fi
2757
2758 if enabled asm; then
2759     as=${gas:=$as}
2760     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2761         $nogas "GNU assembler not found, install gas-preprocessor"
2762 fi
2763
2764 check_ldflags -Wl,--as-needed
2765
2766 if check_func dlopen; then
2767     ldl=
2768 elif check_func dlopen -ldl; then
2769     ldl=-ldl
2770 fi
2771
2772 if enabled network; then
2773     check_type "sys/types.h sys/socket.h" socklen_t
2774     check_type netdb.h "struct addrinfo"
2775     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2776     check_type netinet/in.h "struct sockaddr_in6"
2777     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2778     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2779     # Prefer arpa/inet.h over winsock2
2780     if check_header arpa/inet.h ; then
2781         check_func closesocket
2782     elif check_header winsock2.h ; then
2783         check_func_headers winsock2.h closesocket -lws2 && \
2784             network_extralibs="-lws2" || \
2785         { check_func_headers winsock2.h closesocket -lws2_32 && \
2786             network_extralibs="-lws2_32"; }
2787         check_type ws2tcpip.h socklen_t
2788         check_type ws2tcpip.h "struct addrinfo"
2789         check_type ws2tcpip.h "struct ipv6_mreq"
2790         check_type ws2tcpip.h "struct sockaddr_in6"
2791         check_type ws2tcpip.h "struct sockaddr_storage"
2792         check_struct winsock2.h "struct sockaddr" sa_len
2793     else
2794         disable network
2795     fi
2796 fi
2797
2798 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2799 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2800
2801 check_func  fcntl
2802 check_func  fork
2803 check_func  getaddrinfo $network_extralibs
2804 check_func  gethrtime
2805 check_func  getrusage
2806 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2807 check_func  inet_aton $network_extralibs
2808 check_func  isatty
2809 check_func  localtime_r
2810 check_func  ${malloc_prefix}memalign            && enable memalign
2811 check_func  mkstemp
2812 check_func  mmap
2813 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2814 check_func  setrlimit
2815 check_func  strerror_r
2816 check_func  strtok_r
2817 check_func_headers conio.h kbhit
2818 check_func_headers io.h setmode
2819 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2820 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2821 check_func_headers windows.h GetProcessTimes
2822 check_func_headers windows.h MapViewOfFile
2823 check_func_headers windows.h VirtualAlloc
2824
2825 check_header dlfcn.h
2826 check_header dxva2api.h
2827 check_header libcrystalhd/libcrystalhd_if.h
2828 check_header malloc.h
2829 check_header poll.h
2830 check_header sys/mman.h
2831 check_header sys/resource.h
2832 check_header sys/select.h
2833 check_header termios.h
2834 check_header vdpau/vdpau.h
2835 check_header vdpau/vdpau_x11.h
2836 check_header X11/extensions/XvMClib.h
2837
2838 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2839
2840 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2841 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2842
2843 # check for some common methods of building with pthread support
2844 # do this before the optional library checks as some of them require pthreads
2845 if ! disabled pthreads && ! enabled w32threads; then
2846     enable pthreads
2847     if check_func pthread_create; then
2848         :
2849     elif check_func pthread_create -pthread; then
2850         add_cflags -pthread
2851         add_extralibs -pthread
2852     elif check_func pthread_create -pthreads; then
2853         add_cflags -pthreads
2854         add_extralibs -pthreads
2855     elif check_func pthread_create -lpthreadGC2; then
2856         add_extralibs -lpthreadGC2
2857     elif ! check_lib pthread.h pthread_create -lpthread; then
2858         disable pthreads
2859     fi
2860 fi
2861
2862 for thread in $THREADS_LIST; do
2863     if enabled $thread; then
2864         test -n "$thread_type" &&
2865             die "ERROR: Only one thread type must be selected." ||
2866             thread_type="$thread"
2867     fi
2868 done
2869
2870 check_lib math.h sin -lm && LIBM="-lm"
2871 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2872 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2873
2874 check_mathfunc exp2
2875 check_mathfunc exp2f
2876 check_mathfunc llrint
2877 check_mathfunc llrintf
2878 check_mathfunc log2
2879 check_mathfunc log2f
2880 check_mathfunc lrint
2881 check_mathfunc lrintf
2882 check_mathfunc round
2883 check_mathfunc roundf
2884 check_mathfunc trunc
2885 check_mathfunc truncf
2886
2887 # these are off by default, so fail if requested and not available
2888 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2889 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2890 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2891 enabled libdc1394  && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
2892 enabled libdirac   && require_pkg_config dirac                          \
2893     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2894     "dirac_decoder_init dirac_encoder_init"
2895 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2896 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2897 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2898 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2899 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2900 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2901 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2902 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
2903 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2904 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2905 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2906 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2907 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2908 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2909 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2910 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2911 enabled libvpx     && {
2912     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2913                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2914     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2915                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2916 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2917                       { check_cpp_condition x264.h "X264_BUILD >= 115" ||
2918                         die "ERROR: libx264 version must be >= 0.115."; }
2919 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2920 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2921 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
2922                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
2923                         die "ERROR: openal not found"; } &&
2924                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
2925                         die "ERROR: openal version must be 1.1 or compatible"; }
2926 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2927
2928 SDL_CONFIG="${cross_prefix}sdl-config"
2929 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2930     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2931     enable sdl &&
2932     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2933 else
2934   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2935     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2936     sdl_libs=$("${SDL_CONFIG}" --libs)
2937     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
2938     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2939     enable sdl &&
2940     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2941   fi
2942 fi
2943 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
2944
2945 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2946
2947 check_header linux/fb.h
2948 check_header linux/videodev.h
2949 check_header linux/videodev2.h
2950 check_header sys/videoio.h
2951
2952 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2953 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2954 # w32api 3.12 had it defined wrong
2955 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2956
2957 check_type "dshow.h" IBaseFilter
2958
2959 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2960 { check_header dev/bktr/ioctl_meteor.h &&
2961   check_header dev/bktr/ioctl_bt848.h; } ||
2962 { check_header machine/ioctl_meteor.h &&
2963   check_header machine/ioctl_bt848.h; } ||
2964 { check_header dev/video/meteor/ioctl_meteor.h &&
2965   check_header dev/video/bktr/ioctl_bt848.h; } ||
2966 check_header dev/ic/bt8xx.h
2967
2968 check_header sndio.h
2969 if check_struct sys/soundcard.h audio_buf_info bytes; then
2970     enable_safe sys/soundcard.h
2971 else
2972     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2973     #include <sys/soundcard.h>
2974     audio_buf_info abc;
2975 EOF
2976 fi
2977 check_header soundcard.h
2978
2979 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2980
2981 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
2982
2983 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2984
2985 enabled x11grab                         &&
2986 check_header X11/Xlib.h                 &&
2987 check_header X11/extensions/XShm.h      &&
2988 check_header X11/extensions/Xfixes.h    &&
2989 check_func XOpenDisplay -lX11           &&
2990 check_func XShmCreateImage -lX11 -lXext &&
2991 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2992
2993 if ! disabled vaapi; then
2994     check_lib va/va.h vaInitialize -lva && {
2995         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2996         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
2997     } || disable vaapi
2998 fi
2999
3000 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3001 check_cpp_condition \
3002     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3003     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3004       disable vdpau; }
3005 fi
3006
3007 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3008
3009 # add some useful compiler flags if supported
3010 check_cflags -Wdeclaration-after-statement
3011 check_cflags -Wall
3012 check_cflags -Wno-parentheses
3013 check_cflags -Wno-switch
3014 check_cflags -Wno-format-zero-length
3015 check_cflags -Wdisabled-optimization
3016 check_cflags -Wpointer-arith
3017 check_cflags -Wredundant-decls
3018 check_cflags -Wno-pointer-sign
3019 check_cflags -Wcast-qual
3020 check_cflags -Wwrite-strings
3021 check_cflags -Wtype-limits
3022 check_cflags -Wundef
3023 check_cflags -Wmissing-prototypes
3024 check_cflags -Wno-pointer-to-int-cast
3025 enabled extra_warnings && check_cflags -Winline
3026
3027 # add some linker flags
3028 check_ldflags -Wl,--warn-common
3029 check_ldflags -Wl,-rpath-link,libpostproc -Wl,-rpath-link,libswscale -Wl,-rpath-link,libavfilter -Wl,-rpath-link,libavdevice -Wl,-rpath-link,libavformat -Wl,-rpath-link,libavcodec -Wl,-rpath-link,libavutil
3030 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3031
3032 echo "X{};" > $TMPV
3033 if test_ldflags -Wl,--version-script,$TMPV; then
3034     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3035     check_cc <<EOF && enable symver_asm_label
3036 void ff_foo(void) __asm__ ("av_foo@VERSION");
3037 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3038 EOF
3039     check_cc <<EOF && enable symver_gnu_asm
3040 __asm__(".symver ff_foo,av_foo@VERSION");
3041 void ff_foo(void) {}
3042 EOF
3043 fi
3044
3045 if [ -n "$optflags" ]; then
3046     add_cflags $optflags
3047 elif enabled small; then
3048     add_cflags $size_cflags
3049 elif enabled optimizations; then
3050     add_cflags $speed_cflags
3051 else
3052     add_cflags $noopt_cflags
3053 fi
3054 check_cflags -fno-math-errno
3055 check_cflags -fno-signed-zeros
3056
3057 if enabled icc; then
3058     # Just warnings, no remarks
3059     check_cflags -w1
3060     # -wd: Disable following warnings
3061     # 144, 167, 556: -Wno-pointer-sign
3062     # 1292: attribute "foo" ignored
3063     # 10006: ignoring unknown option -fno-signed-zeros
3064     # 10148: ignoring unknown option -Wno-parentheses
3065     # 10156: ignoring option '-W'; no argument required
3066     check_cflags -wd144,167,556,1292,10006,10148,10156
3067     # 11030: Warning unknown option --as-needed
3068     # 10156: ignoring option '-export'; no argument required
3069     check_ldflags -wd10156,11030
3070     # Allow to compile with optimizations
3071     check_ldflags -march=$cpu
3072     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3073     enable ebp_available
3074     if enabled x86_32; then
3075         test ${icc_version%%.*} -ge 11 && \
3076             check_cflags -falign-stack=maintain-16-byte || \
3077             disable aligned_stack
3078     fi
3079 elif enabled ccc; then
3080     # disable some annoying warnings
3081     add_cflags -msg_disable cvtu32to64
3082     add_cflags -msg_disable embedcomment
3083     add_cflags -msg_disable needconstext
3084     add_cflags -msg_disable nomainieee
3085     add_cflags -msg_disable ptrmismatch1
3086     add_cflags -msg_disable unreachcode
3087 elif enabled gcc; then
3088     check_cflags -fno-tree-vectorize
3089     check_cflags -Werror=implicit-function-declaration
3090     check_cflags -Werror=missing-prototypes
3091 elif enabled llvm_gcc; then
3092     check_cflags -mllvm -stack-alignment=16
3093 elif enabled clang; then
3094     check_cflags -mllvm -stack-alignment=16
3095     check_cflags -Qunused-arguments
3096 elif enabled armcc; then
3097     # 2523: use of inline assembler is deprecated
3098     add_cflags -W${armcc_opt},--diag_suppress=2523
3099     add_cflags -W${armcc_opt},--diag_suppress=1207
3100     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3101     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3102     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3103     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3104 elif enabled tms470; then
3105     add_cflags -pds=824 -pds=837
3106 elif enabled pathscale; then
3107     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3108 fi
3109
3110 enabled_any $THREADS_LIST      && enable threads
3111
3112 check_deps $CONFIG_LIST       \
3113            $CONFIG_EXTRA      \
3114            $HAVE_LIST         \
3115            $DECODER_LIST      \
3116            $ENCODER_LIST      \
3117            $HWACCEL_LIST      \
3118            $PARSER_LIST       \
3119            $BSF_LIST          \
3120            $DEMUXER_LIST      \
3121            $MUXER_LIST        \
3122            $FILTER_LIST       \
3123            $INDEV_LIST        \
3124            $OUTDEV_LIST       \
3125            $PROTOCOL_LIST     \
3126            $ACODEC_TESTS      \
3127            $VCODEC_TESTS      \
3128            $LAVF_TESTS        \
3129            $LAVFI_TESTS       \
3130            $SEEK_TESTS        \
3131
3132 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3133
3134 if test $target_os == "haiku"; then
3135     disable memalign
3136     disable posix_memalign
3137 fi
3138
3139 ! enabled_any memalign posix_memalign malloc_aligned &&
3140     enabled_any $need_memalign && enable memalign_hack
3141
3142 echo "install prefix            $prefix"
3143 echo "source path               $source_path"
3144 echo "C compiler                $cc"
3145 echo "ARCH                      $arch ($cpu)"
3146 if test "$build_suffix" != ""; then
3147     echo "build suffix              $build_suffix"
3148 fi
3149 if test "$extra_version" != ""; then
3150     echo "version string suffix     $extra_version"
3151 fi
3152 echo "big-endian                ${bigendian-no}"
3153 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3154 if enabled x86; then
3155     echo "${yasmexe}                      ${yasm-no}"
3156     echo "MMX enabled               ${mmx-no}"
3157     echo "MMX2 enabled              ${mmx2-no}"
3158     echo "3DNow! enabled            ${amd3dnow-no}"
3159     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3160     echo "SSE enabled               ${sse-no}"
3161     echo "SSSE3 enabled             ${ssse3-no}"
3162     echo "AVX enabled               ${avx-no}"
3163     echo "CMOV enabled              ${cmov-no}"
3164     echo "CMOV is fast              ${fast_cmov-no}"
3165     echo "EBX available             ${ebx_available-no}"
3166     echo "EBP available             ${ebp_available-no}"
3167 fi
3168 if enabled arm; then
3169     echo "ARMv5TE enabled           ${armv5te-no}"
3170     echo "ARMv6 enabled             ${armv6-no}"
3171     echo "ARMv6T2 enabled           ${armv6t2-no}"
3172     echo "ARM VFP enabled           ${armvfp-no}"
3173     echo "IWMMXT enabled            ${iwmmxt-no}"
3174     echo "NEON enabled              ${neon-no}"
3175 fi
3176 if enabled mips; then
3177     echo "MMI enabled               ${mmi-no}"
3178 fi
3179 if enabled ppc; then
3180     echo "AltiVec enabled           ${altivec-no}"
3181     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3182     echo "dcbzl available           ${dcbzl-no}"
3183 fi
3184 if enabled sparc; then
3185     echo "VIS enabled               ${vis-no}"
3186 fi
3187 echo "debug symbols             ${debug-no}"
3188 echo "strip symbols             ${stripping-no}"
3189 echo "optimize for size         ${small-no}"
3190 echo "optimizations             ${optimizations-no}"
3191 echo "static                    ${static-no}"
3192 echo "shared                    ${shared-no}"
3193 echo "postprocessing support    ${postproc-no}"
3194 echo "new filter support        ${avfilter-no}"
3195 echo "network support           ${network-no}"
3196 echo "threading support         ${thread_type-no}"
3197 echo "SDL support               ${sdl-no}"
3198 echo "Sun medialib support      ${mlib-no}"
3199 echo "libdxva2 enabled          ${dxva2-no}"
3200 echo "libva enabled             ${vaapi-no}"
3201 echo "libvdpau enabled          ${vdpau-no}"
3202 echo "AVISynth enabled          ${avisynth-no}"
3203 echo "libcelt enabled           ${libcelt-no}"
3204 echo "frei0r enabled            ${frei0r-no}"
3205 echo "libdc1394 support         ${libdc1394-no}"
3206 echo "libdirac enabled          ${libdirac-no}"
3207 echo "libfaac enabled           ${libfaac-no}"
3208 echo "libgsm enabled            ${libgsm-no}"
3209 echo "libmp3lame enabled        ${libmp3lame-no}"
3210 echo "libnut enabled            ${libnut-no}"
3211 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3212 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3213 echo "libopencv support         ${libopencv-no}"
3214 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3215 echo "librtmp enabled           ${librtmp-no}"
3216 echo "libschroedinger enabled   ${libschroedinger-no}"
3217 echo "libspeex enabled          ${libspeex-no}"
3218 echo "libtheora enabled         ${libtheora-no}"
3219 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3220 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3221 echo "libvorbis enabled         ${libvorbis-no}"
3222 echo "libvpx enabled            ${libvpx-no}"
3223 echo "libx264 enabled           ${libx264-no}"
3224 echo "libxavs enabled           ${libxavs-no}"
3225 echo "libxvid enabled           ${libxvid-no}"
3226 echo "openal enabled            ${openal-no}"
3227 echo "zlib enabled              ${zlib-no}"
3228 echo "bzlib enabled             ${bzlib-no}"
3229 echo
3230
3231 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3232     echo "Enabled ${type}s:"
3233     eval list=\$$(toupper $type)_LIST
3234     print_enabled '_*' $list | sort | pr -r -3 -t
3235     echo
3236 done
3237
3238 license="LGPL version 2.1 or later"
3239 if enabled nonfree; then
3240     license="nonfree and unredistributable"
3241 elif enabled gplv3; then
3242     license="GPL version 3 or later"
3243 elif enabled lgplv3; then
3244     license="LGPL version 3 or later"
3245 elif enabled gpl; then
3246     license="GPL version 2 or later"
3247 fi
3248
3249 echo "License: $license"
3250
3251 echo "Creating config.mak and config.h..."
3252
3253 test -e Makefile || $ln_s "$source_path/Makefile" .
3254
3255 enabled stripping || strip="echo skipping strip"
3256
3257 config_files="$TMPH config.mak"
3258
3259 cat > config.mak <<EOF
3260 # Automatically generated by configure - do not modify!
3261 ifndef FFMPEG_CONFIG_MAK
3262 FFMPEG_CONFIG_MAK=1
3263 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3264 prefix=$prefix
3265 LIBDIR=\$(DESTDIR)$libdir
3266 SHLIBDIR=\$(DESTDIR)$shlibdir
3267 INCDIR=\$(DESTDIR)$incdir
3268 BINDIR=\$(DESTDIR)$bindir
3269 DATADIR=\$(DESTDIR)$datadir
3270 MANDIR=\$(DESTDIR)$mandir
3271 SRC_PATH=$source_path
3272 ifndef MAIN_MAKEFILE
3273 SRC_PATH:=\$(SRC_PATH:.%=..%)
3274 endif
3275 CC_IDENT=$cc_ident
3276 ARCH=$arch
3277 CC=$cc
3278 AS=$as
3279 LD=$ld
3280 DEPCC=$dep_cc
3281 YASM=$yasmexe
3282 YASMDEP=$yasmexe
3283 AR=$ar
3284 RANLIB=$ranlib
3285 CP=cp -p
3286 LN_S=$ln_s
3287 STRIP=$strip
3288 CPPFLAGS=$CPPFLAGS
3289 CFLAGS=$CFLAGS
3290 ASFLAGS=$ASFLAGS
3291 AS_O=$CC_O
3292 CC_O=$CC_O
3293 LDFLAGS=$LDFLAGS
3294 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3295 SHFLAGS=$SHFLAGS
3296 YASMFLAGS=$YASMFLAGS
3297 BUILDSUF=$build_suffix
3298 FULLNAME=$FULLNAME
3299 LIBPREF=$LIBPREF
3300 LIBSUF=$LIBSUF
3301 LIBNAME=$LIBNAME
3302 SLIBPREF=$SLIBPREF
3303 SLIBSUF=$SLIBSUF
3304 EXESUF=$EXESUF
3305 EXTRA_VERSION=$extra_version
3306 DEPFLAGS=$DEPFLAGS
3307 CCDEP=$CCDEP
3308 ASDEP=$ASDEP
3309 CC_DEPFLAGS=$CC_DEPFLAGS
3310 AS_DEPFLAGS=$AS_DEPFLAGS
3311 HOSTCC=$host_cc
3312 HOSTCFLAGS=$host_cflags
3313 HOSTEXESUF=$HOSTEXESUF
3314 HOSTLDFLAGS=$host_ldflags
3315 HOSTLIBS=$host_libs
3316 TARGET_EXEC=$target_exec
3317 TARGET_PATH=$target_path
3318 SDL_LIBS=$sdl_libs
3319 SDL_CFLAGS=$sdl_cflags
3320 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3321 EXTRALIBS=$extralibs
3322 INSTALL=$install
3323 LIBTARGET=${LIBTARGET}
3324 SLIBNAME=${SLIBNAME}
3325 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3326 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3327 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3328 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3329 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3330 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3331 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3332 EOF
3333
3334 get_version(){
3335     name=$1
3336     file=$source_path/$2
3337     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3338     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3339     lcname=$(tolower $name)
3340     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3341     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3342 }
3343
3344 get_version LIBSWSCALE  libswscale/swscale.h
3345 get_version LIBPOSTPROC libpostproc/postprocess.h
3346 get_version LIBAVCODEC  libavcodec/version.h
3347 get_version LIBAVDEVICE libavdevice/avdevice.h
3348 get_version LIBAVFORMAT libavformat/version.h
3349 get_version LIBAVUTIL   libavutil/avutil.h
3350 get_version LIBAVFILTER libavfilter/avfilter.h
3351
3352 cat > $TMPH <<EOF
3353 /* Automatically generated by configure - do not modify! */
3354 #ifndef FFMPEG_CONFIG_H
3355 #define FFMPEG_CONFIG_H
3356 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3357 #define FFMPEG_LICENSE "$(c_escape $license)"
3358 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3359 #define CC_TYPE "$cc_type"
3360 #define CC_VERSION $cc_version
3361 #define restrict $_restrict
3362 #define EXTERN_PREFIX "${extern_prefix}"
3363 #define EXTERN_ASM ${extern_prefix}
3364 #define SLIBSUF "$SLIBSUF"
3365 EOF
3366
3367 test -n "$malloc_prefix" &&
3368     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3369
3370 if enabled small || disabled optimizations; then
3371     echo "#undef  av_always_inline"  >> $TMPH
3372     if enabled small; then
3373         echo "#define av_always_inline inline"  >> $TMPH
3374     else
3375         echo "#define av_always_inline av_unused"  >> $TMPH
3376     fi
3377 fi
3378
3379 if enabled yasm; then
3380     append config_files $TMPASM
3381     printf '' >$TMPASM
3382 fi
3383
3384 print_config ARCH_   "$config_files" $ARCH_LIST
3385 print_config HAVE_   "$config_files" $HAVE_LIST
3386 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3387                                      $CONFIG_EXTRA      \
3388                                      $DECODER_LIST      \
3389                                      $ENCODER_LIST      \
3390                                      $HWACCEL_LIST      \
3391                                      $PARSER_LIST       \
3392                                      $BSF_LIST          \
3393                                      $DEMUXER_LIST      \
3394                                      $MUXER_LIST        \
3395                                      $FILTER_LIST       \
3396                                      $PROTOCOL_LIST     \
3397                                      $INDEV_LIST        \
3398                                      $OUTDEV_LIST       \
3399
3400 cat >>config.mak <<EOF
3401 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3402 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3403 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3404 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3405 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3406 EOF
3407
3408 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3409 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3410
3411 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3412 cp_if_changed $TMPH config.h
3413 touch .config
3414
3415 enabled yasm && cp_if_changed $TMPASM config.asm
3416
3417 cat > $TMPH <<EOF
3418 /* Generated by ffconf */
3419 #ifndef AVUTIL_AVCONFIG_H
3420 #define AVUTIL_AVCONFIG_H
3421 EOF
3422
3423 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3424
3425 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3426
3427 cp_if_changed $TMPH libavutil/avconfig.h
3428
3429 test -n "$WARNINGS" && printf "\n$WARNINGS"
3430
3431 # build pkg-config files
3432
3433 pkgconfig_generate(){
3434 name=$1
3435 shortname=${name#lib}${build_suffix}
3436 comment=$2
3437 version=$3
3438 libs=$4
3439 requires=$5
3440 enabled ${name#lib} || return 0
3441 mkdir -p $name
3442 cat <<EOF > $name/$name.pc
3443 prefix=$prefix
3444 exec_prefix=\${prefix}
3445 libdir=$libdir
3446 includedir=$incdir
3447
3448 Name: $name
3449 Description: $comment
3450 Version: $version
3451 Requires: $(enabled shared || echo $requires)
3452 Requires.private: $(enabled shared && echo $requires)
3453 Conflicts:
3454 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3455 Libs.private: $(enabled shared && echo $libs)
3456 Cflags: -I\${includedir}
3457 EOF
3458 cat <<EOF > $name/$name-uninstalled.pc
3459 prefix=
3460 exec_prefix=
3461 libdir=\${pcfiledir}
3462 includedir=${source_path}
3463
3464 Name: $name
3465 Description: $comment
3466 Version: $version
3467 Requires: $requires
3468 Conflicts:
3469 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3470 Cflags: -I\${includedir}
3471 EOF
3472 }
3473
3474 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3475 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3476 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3477 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3478 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3479 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3480 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"