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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --enable-postproc        enable GPLed postprocessing support [no]
  92   --disable-avfilter       disable video filter support [no]
  93   --disable-pthreads       disable pthreads [auto]
  94   --enable-w32threads      use Win32 threads [no]
  95   --enable-x11grab         enable X11 grabbing [no]
  96   --disable-network        disable network support [no]
  97   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  98   --enable-gray            enable full grayscale support (slower color)
  99   --disable-swscale-alpha  disable alpha channel support in swscale
 100   --disable-fastdiv        disable table-based division
 101   --enable-small           optimize for size instead of speed
 102   --disable-aandct         disable AAN DCT code
 103   --disable-dct            disable DCT code
 104   --disable-fft            disable FFT code
 105   --disable-golomb         disable Golomb code
 106   --disable-huffman        disable Huffman code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --disable-vaapi          disable VAAPI code
 111   --disable-vdpau          disable VDPAU code
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-libcelt         enable CELT/Opus decoding via libcelt [no]
 165   --enable-frei0r          enable frei0r video filtering
 166   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 167   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 168   --enable-libopencv       enable video filtering via libopencv [no]
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libfreetype     enable libfreetype [no]
 174   --enable-libgsm          enable GSM support via libgsm [no]
 175   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 176   --enable-libnut          enable NUT (de)muxing via libnut,
 177                            native (de)muxer exists [no]
 178   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 179   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 180   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 181   --enable-libspeex        enable Speex decoding via libspeex [no]
 182   --enable-libtheora       enable Theora encoding via libtheora [no]
 183   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 184   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 185   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 186                            native implementation exists [no]
 187   --enable-libvpx          enable VP8 support via libvpx [no]
 188   --enable-libx264         enable H.264 encoding via x264 [no]
 189   --enable-libxavs         enable AVS encoding via xavs [no]
 190   --enable-libxvid         enable Xvid encoding via xvidcore,
 191                            native MPEG-4/Xvid encoder exists [no]
 192   --enable-mlib            enable Sun medialib [no]
 193   --enable-zlib            enable zlib [autodetect]
 194
 195 Advanced options (experts only):
 196   --source-path=PATH       path to source code [$source_path]
 197   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 198   --enable-cross-compile   assume a cross-compiler is used
 199   --sysroot=PATH           root of cross-build tree
 200   --sysinclude=PATH        location of cross-build system headers
 201   --target-os=OS           compiler targets OS [$target_os]
 202   --target-exec=CMD        command to run executables on target
 203   --target-path=DIR        path to view of build directory on target
 204   --nm=NM                  use nm tool
 205   --ar=AR                  use archive tool AR [$ar_default]
 206   --as=AS                  use assembler AS [$as_default]
 207   --cc=CC                  use C compiler CC [$cc_default]
 208   --ld=LD                  use linker LD
 209   --host-cc=HOSTCC         use host C compiler HOSTCC
 210   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 211   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 212   --host-libs=HLIBS        use libs HLIBS when linking for host
 213   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 214   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 215   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 216   --extra-version=STRING   version string suffix []
 217   --build-suffix=SUFFIX    library name suffix []
 218   --arch=ARCH              select architecture [$arch]
 219   --cpu=CPU                select the minimum required CPU (affects
 220                            instruction selection, may crash on older CPUs)
 221   --disable-asm            disable all assembler optimizations
 222   --disable-altivec        disable AltiVec optimizations
 223   --disable-amd3dnow       disable 3DNow! optimizations
 224   --disable-amd3dnowext    disable 3DNow! extended optimizations
 225   --disable-mmx            disable MMX optimizations
 226   --disable-mmx2           disable MMX2 optimizations
 227   --disable-sse            disable SSE optimizations
 228   --disable-ssse3          disable SSSE3 optimizations
 229   --disable-avx            disable AVX optimizations
 230   --disable-armv5te        disable armv5te optimizations
 231   --disable-armv6          disable armv6 optimizations
 232   --disable-armv6t2        disable armv6t2 optimizations
 233   --disable-armvfp         disable ARM VFP optimizations
 234   --disable-iwmmxt         disable iwmmxt optimizations
 235   --disable-mmi            disable MMI optimizations
 236   --disable-neon           disable neon optimizations
 237   --disable-vis            disable VIS optimizations
 238   --disable-yasm           disable use of yasm assembler
 239   --enable-pic             build position-independent code
 240   --malloc-prefix=PFX      prefix malloc and related names with PFX
 241   --enable-sram            allow use of on-chip SRAM
 242   --disable-symver         disable symbol versioning
 243
 244 Developer options (useful when working on FFmpeg itself):
 245   --disable-debug          disable debugging symbols
 246   --enable-debug=LEVEL     set the debug level [$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 $pkg || return
 765     pkg_cflags=$($pkg_config --cflags $pkg)
 766     pkg_libs=$($pkg_config --libs $pkg)
 767     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 768         set_safe ${pkg}_cflags $pkg_cflags   &&
 769         set_safe ${pkg}_libs   $pkg_libs
 770 }
 771
 772 check_exec(){
 773     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 774 }
 775
 776 check_exec_crash(){
 777     code=$(cat)
 778
 779     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 780     # are safe but may not be available everywhere.  Thus we use
 781     # raise(SIGTERM) instead.  The check is run in a subshell so we
 782     # can redirect the "Terminated" message from the shell.  SIGBUS
 783     # is not defined by standard C so it is used conditionally.
 784
 785     (check_exec "$@") >> $logfile 2>&1 <<EOF
 786 #include <signal.h>
 787 static void sighandler(int sig){
 788     raise(SIGTERM);
 789 }
 790 int main(void){
 791     signal(SIGILL, sighandler);
 792     signal(SIGFPE, sighandler);
 793     signal(SIGSEGV, sighandler);
 794 #ifdef SIGBUS
 795     signal(SIGBUS, sighandler);
 796 #endif
 797     { $code }
 798 }
 799 EOF
 800 }
 801
 802 check_type(){
 803     log check_type "$@"
 804     headers=$1
 805     type=$2
 806     shift 2
 807     disable_safe "$type"
 808     incs=""
 809     for hdr in $headers; do
 810         incs="$incs
 811 #include <$hdr>"
 812     done
 813     check_cc "$@" <<EOF && enable_safe "$type"
 814 $incs
 815 $type v;
 816 EOF
 817 }
 818
 819 check_struct(){
 820     log check_type "$@"
 821     headers=$1
 822     struct=$2
 823     member=$3
 824     shift 3
 825     disable_safe "${struct}_${member}"
 826     incs=""
 827     for hdr in $headers; do
 828         incs="$incs
 829 #include <$hdr>"
 830     done
 831     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 832 $incs
 833 const void *p = &(($struct *)0)->$member;
 834 EOF
 835 }
 836
 837 require(){
 838     name="$1"
 839     header="$2"
 840     func="$3"
 841     shift 3
 842     check_lib $header $func "$@" || die "ERROR: $name not found"
 843 }
 844
 845 require2(){
 846     name="$1"
 847     headers="$2"
 848     func="$3"
 849     shift 3
 850     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 851 }
 852
 853 require_pkg_config(){
 854     pkg="$1"
 855     check_pkg_config "$@" || die "ERROR: $pkg not found"
 856     add_cflags    $(get_safe ${pkg}_cflags)
 857     add_extralibs $(get_safe ${pkg}_libs)
 858 }
 859
 860 check_host_cc(){
 861     log check_host_cc "$@"
 862     cat > $TMPC
 863     log_file $TMPC
 864     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 865 }
 866
 867 check_host_cflags(){
 868     log check_host_cflags "$@"
 869     check_host_cc "$@" <<EOF && append host_cflags "$@"
 870 int x;
 871 EOF
 872 }
 873
 874 apply(){
 875     file=$1
 876     shift
 877     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 878 }
 879
 880 cp_if_changed(){
 881     cmp -s "$1" "$2" &&
 882         echo "$2 is unchanged" ||
 883         cp -f "$1" "$2"
 884 }
 885
 886 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 887 # system-dependent things.
 888
 889 COMPONENT_LIST="
 890     bsfs
 891     decoders
 892     demuxers
 893     encoders
 894     filters
 895     hwaccels
 896     indevs
 897     muxers
 898     outdevs
 899     parsers
 900     protocols
 901 "
 902
 903 CONFIG_LIST="
 904     $COMPONENT_LIST
 905     aandct
 906     ac3dsp
 907     avcodec
 908     avdevice
 909     avfilter
 910     avformat
 911     avisynth
 912     bzlib
 913     crystalhd
 914     dct
 915     doc
 916     dwt
 917     dxva2
 918     fastdiv
 919     ffmpeg
 920     ffplay
 921     ffprobe
 922     ffserver
 923     fft
 924     frei0r
 925     golomb
 926     gpl
 927     gray
 928     h264dsp
 929     h264pred
 930     hardcoded_tables
 931     huffman
 932     libcelt
 933     libdc1394
 934     libdirac
 935     libfaac
 936     libfreetype
 937     libgsm
 938     libmp3lame
 939     libnut
 940     libopencore_amrnb
 941     libopencore_amrwb
 942     libopencv
 943     libopenjpeg
 944     librtmp
 945     libschroedinger
 946     libspeex
 947     libtheora
 948     libvo_aacenc
 949     libvo_amrwbenc
 950     libvorbis
 951     libvpx
 952     libx264
 953     libxavs
 954     libxvid
 955     lpc
 956     lsp
 957     mdct
 958     memalign_hack
 959     mlib
 960     mpegaudio_hp
 961     network
 962     nonfree
 963     pic
 964     postproc
 965     rdft
 966     rtpdec
 967     runtime_cpudetect
 968     shared
 969     sinewin
 970     small
 971     sram
 972     static
 973     swscale
 974     swscale_alpha
 975     vaapi
 976     vdpau
 977     version3
 978     x11grab
 979     zlib
 980 "
 981
 982 THREADS_LIST='
 983     pthreads
 984     w32threads
 985 '
 986
 987 ARCH_LIST='
 988     alpha
 989     arm
 990     avr32
 991     avr32_ap
 992     avr32_uc
 993     bfin
 994     ia64
 995     m68k
 996     mips
 997     mips64
 998     parisc
 999     ppc
1000     ppc64
1001     s390
1002     sh4
1003     sparc
1004     sparc64
1005     tomi
1006     x86
1007     x86_32
1008     x86_64
1009 '
1010
1011 ARCH_EXT_LIST='
1012     altivec
1013     amd3dnow
1014     amd3dnowext
1015     armv5te
1016     armv6
1017     armv6t2
1018     armvfp
1019     avx
1020     iwmmxt
1021     mmi
1022     mmx
1023     mmx2
1024     neon
1025     ppc4xx
1026     sse
1027     ssse3
1028     vis
1029 '
1030
1031 HAVE_LIST_PUB='
1032     bigendian
1033     fast_unaligned
1034 '
1035
1036 HAVE_LIST="
1037     $ARCH_EXT_LIST
1038     $HAVE_LIST_PUB
1039     $THREADS_LIST
1040     aligned_stack
1041     alsa_asoundlib_h
1042     altivec_h
1043     arpa_inet_h
1044     attribute_may_alias
1045     attribute_packed
1046     bswap
1047     closesocket
1048     cmov
1049     dcbzl
1050     dev_bktr_ioctl_bt848_h
1051     dev_bktr_ioctl_meteor_h
1052     dev_ic_bt8xx_h
1053     dev_video_meteor_ioctl_meteor_h
1054     dev_video_bktr_ioctl_bt848_h
1055     dlfcn_h
1056     dlopen
1057     dos_paths
1058     ebp_available
1059     ebx_available
1060     exp2
1061     exp2f
1062     fast_64bit
1063     fast_clz
1064     fast_cmov
1065     fcntl
1066     fork
1067     getaddrinfo
1068     gethrtime
1069     GetProcessMemoryInfo
1070     GetProcessTimes
1071     getrusage
1072     gnu_as
1073     struct_rusage_ru_maxrss
1074     ibm_asm
1075     inet_aton
1076     inline_asm
1077     isatty
1078     kbhit
1079     ldbrx
1080     libdc1394_1
1081     libdc1394_2
1082     llrint
1083     llrintf
1084     local_aligned_16
1085     local_aligned_8
1086     localtime_r
1087     log2
1088     log2f
1089     loongson
1090     lrint
1091     lrintf
1092     lzo1x_999_compress
1093     machine_ioctl_bt848_h
1094     machine_ioctl_meteor_h
1095     malloc_h
1096     MapViewOfFile
1097     memalign
1098     mkstemp
1099     mmap
1100     pld
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     ten_operands
1128     termios_h
1129     threads
1130     trunc
1131     truncf
1132     vfp_args
1133     VirtualAlloc
1134     winsock2_h
1135     xform_asm
1136     xmm_clobbers
1137     yasm
1138 "
1139
1140 # options emitted with CONFIG_ prefix but not available on command line
1141 CONFIG_EXTRA="
1142     avutil
1143     gplv3
1144     lgplv3
1145 "
1146
1147 CMDLINE_SELECT="
1148     $ARCH_EXT_LIST
1149     $CONFIG_LIST
1150     $THREADS_LIST
1151     asm
1152     cross_compile
1153     debug
1154     extra_warnings
1155     logging
1156     optimizations
1157     stripping
1158     symver
1159     yasm
1160 "
1161
1162 PATHS_LIST='
1163     bindir
1164     datadir
1165     incdir
1166     libdir
1167     mandir
1168     prefix
1169     shlibdir
1170 '
1171
1172 CMDLINE_SET="
1173     $PATHS_LIST
1174     ar
1175     arch
1176     as
1177     build_suffix
1178     cc
1179     cpu
1180     cross_prefix
1181     dep_cc
1182     extra_version
1183     host_cc
1184     host_cflags
1185     host_ldflags
1186     host_libs
1187     host_os
1188     ld
1189     logfile
1190     malloc_prefix
1191     nm
1192     pkg_config
1193     samples
1194     source_path
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
1218 mmi_deps="mips"
1219
1220 altivec_deps="ppc"
1221 ppc4xx_deps="ppc"
1222
1223 vis_deps="sparc"
1224
1225 x86_64_suggest="cmov fast_cmov"
1226 amd3dnow_deps="mmx"
1227 amd3dnowext_deps="amd3dnow"
1228 mmx_deps="x86"
1229 mmx2_deps="mmx"
1230 sse_deps="mmx"
1231 ssse3_deps="sse"
1232 avx_deps="ssse3"
1233
1234 aligned_stack_if_any="ppc x86"
1235 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1236 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1237 fast_unaligned_if_any="armv6 ppc x86"
1238
1239 need_memalign="altivec neon sse"
1240 inline_asm_deps="!tms470"
1241
1242 symver_if_any="symver_asm_label symver_gnu_asm"
1243
1244 # subsystems
1245 dct_select="rdft"
1246 mdct_select="fft"
1247 rdft_select="fft"
1248
1249 # decoders / encoders / hardware accelerators
1250 aac_decoder_select="mdct sinewin"
1251 aac_encoder_select="mdct sinewin"
1252 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1253 ac3_decoder_select="mdct ac3dsp ac3_parser"
1254 ac3_encoder_select="mdct ac3dsp"
1255 ac3_fixed_encoder_select="ac3dsp"
1256 alac_encoder_select="lpc"
1257 amrnb_decoder_select="lsp"
1258 amrwb_decoder_select="lsp"
1259 atrac1_decoder_select="mdct sinewin"
1260 atrac3_decoder_select="mdct"
1261 binkaudio_dct_decoder_select="mdct rdft dct"
1262 binkaudio_rdft_decoder_select="mdct rdft"
1263 cavs_decoder_select="golomb"
1264 cook_decoder_select="mdct sinewin"
1265 cscd_decoder_suggest="zlib"
1266 dca_decoder_select="mdct"
1267 dnxhd_encoder_select="aandct"
1268 dxa_decoder_select="zlib"
1269 eac3_decoder_select="ac3_decoder"
1270 eamad_decoder_select="aandct"
1271 eatgq_decoder_select="aandct"
1272 eatqi_decoder_select="aandct"
1273 ffv1_decoder_select="golomb"
1274 flac_decoder_select="golomb"
1275 flac_encoder_select="golomb lpc"
1276 flashsv_decoder_select="zlib"
1277 flashsv_encoder_select="zlib"
1278 flashsv2_encoder_select="zlib"
1279 flv_decoder_select="h263_decoder"
1280 flv_encoder_select="h263_encoder"
1281 fraps_decoder_select="huffman"
1282 h261_encoder_select="aandct"
1283 h263_decoder_select="h263_parser"
1284 h263_encoder_select="aandct"
1285 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1286 h263i_decoder_select="h263_decoder"
1287 h263p_encoder_select="h263_encoder"
1288 h264_decoder_select="golomb h264dsp h264pred"
1289 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1290 h264_dxva2_hwaccel_deps="dxva2api_h"
1291 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1292 h264_vaapi_hwaccel_select="vaapi"
1293 h264_vdpau_decoder_select="vdpau h264_decoder"
1294 imc_decoder_select="fft mdct"
1295 jpegls_decoder_select="golomb"
1296 jpegls_encoder_select="golomb"
1297 ljpeg_encoder_select="aandct"
1298 loco_decoder_select="golomb"
1299 mjpeg_encoder_select="aandct"
1300 mlp_decoder_select="mlp_parser"
1301 mp1float_decoder_select="dct"
1302 mp2float_decoder_select="dct"
1303 mp3adufloat_decoder_select="dct"
1304 mp3float_decoder_select="dct"
1305 mp3on4float_decoder_select="dct"
1306 mpeg1video_encoder_select="aandct"
1307 mpeg2video_encoder_select="aandct"
1308 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1309 mpeg4_encoder_select="h263_encoder"
1310 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1311 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1312 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1313 mpeg2_crystalhd_decoder_select="crystalhd"
1314 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1315 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1316 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1317 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1318 mpeg4_crystalhd_decoder_select="crystalhd"
1319 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1320 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1321 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1322 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1323 msmpeg4_crystalhd_decoder_select="crystalhd"
1324 msmpeg4v1_decoder_select="h263_decoder"
1325 msmpeg4v1_encoder_select="h263_encoder"
1326 msmpeg4v2_decoder_select="h263_decoder"
1327 msmpeg4v2_encoder_select="h263_encoder"
1328 msmpeg4v3_decoder_select="h263_decoder"
1329 msmpeg4v3_encoder_select="h263_encoder"
1330 nellymoser_decoder_select="mdct sinewin"
1331 nellymoser_encoder_select="mdct sinewin"
1332 png_decoder_select="zlib"
1333 png_encoder_select="zlib"
1334 qcelp_decoder_select="lsp"
1335 qdm2_decoder_select="mdct rdft"
1336 ra_144_encoder_select="lpc"
1337 rv10_decoder_select="h263_decoder"
1338 rv10_encoder_select="h263_encoder"
1339 rv20_decoder_select="h263_decoder"
1340 rv20_encoder_select="h263_encoder"
1341 rv30_decoder_select="golomb h264pred"
1342 rv40_decoder_select="golomb h264pred"
1343 shorten_decoder_select="golomb"
1344 sipr_decoder_select="lsp"
1345 snow_decoder_select="dwt"
1346 snow_encoder_select="aandct dwt"
1347 sonic_decoder_select="golomb"
1348 sonic_encoder_select="golomb"
1349 sonic_ls_encoder_select="golomb"
1350 svq1_encoder_select="aandct"
1351 svq3_decoder_select="golomb h264dsp h264pred"
1352 svq3_decoder_suggest="zlib"
1353 theora_decoder_select="vp3_decoder"
1354 tiff_decoder_suggest="zlib"
1355 tiff_encoder_suggest="zlib"
1356 truehd_decoder_select="mlp_decoder"
1357 tscc_decoder_select="zlib"
1358 twinvq_decoder_select="mdct lsp sinewin"
1359 vc1_decoder_select="h263_decoder"
1360 vc1_crystalhd_decoder_select="crystalhd"
1361 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1362 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1363 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1364 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1365 vorbis_decoder_select="mdct"
1366 vorbis_encoder_select="mdct"
1367 vp6_decoder_select="huffman"
1368 vp6a_decoder_select="vp6_decoder"
1369 vp6f_decoder_select="vp6_decoder"
1370 vp8_decoder_select="h264pred"
1371 wmapro_decoder_select="mdct sinewin"
1372 wmav1_decoder_select="mdct sinewin"
1373 wmav1_encoder_select="mdct sinewin"
1374 wmav2_decoder_select="mdct sinewin"
1375 wmav2_encoder_select="mdct sinewin"
1376 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1377 wmv1_decoder_select="h263_decoder"
1378 wmv1_encoder_select="h263_encoder"
1379 wmv2_decoder_select="h263_decoder"
1380 wmv2_encoder_select="h263_encoder"
1381 wmv3_decoder_select="vc1_decoder"
1382 wmv3_crystalhd_decoder_select="crystalhd"
1383 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1384 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1385 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1386 zlib_decoder_select="zlib"
1387 zlib_encoder_select="zlib"
1388 zmbv_decoder_select="zlib"
1389 zmbv_encoder_select="zlib"
1390
1391 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1392 vaapi_deps="va_va_h"
1393 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1394
1395 # parsers
1396 h264_parser_select="golomb h264dsp h264pred"
1397
1398 # external libraries
1399 libcelt_decoder_deps="libcelt"
1400 libdirac_decoder_deps="libdirac !libschroedinger"
1401 libdirac_encoder_deps="libdirac"
1402 libfaac_encoder_deps="libfaac"
1403 libgsm_decoder_deps="libgsm"
1404 libgsm_encoder_deps="libgsm"
1405 libgsm_ms_decoder_deps="libgsm"
1406 libgsm_ms_encoder_deps="libgsm"
1407 libmp3lame_encoder_deps="libmp3lame"
1408 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1409 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1410 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1411 libopenjpeg_decoder_deps="libopenjpeg"
1412 libschroedinger_decoder_deps="libschroedinger"
1413 libschroedinger_encoder_deps="libschroedinger"
1414 libspeex_decoder_deps="libspeex"
1415 libtheora_encoder_deps="libtheora"
1416 libvo_aacenc_encoder_deps="libvo_aacenc"
1417 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1418 libvorbis_encoder_deps="libvorbis"
1419 libvpx_decoder_deps="libvpx"
1420 libvpx_encoder_deps="libvpx"
1421 libx264_encoder_deps="libx264"
1422 libxavs_encoder_deps="libxavs"
1423 libxvid_encoder_deps="libxvid"
1424
1425 # demuxers / muxers
1426 ac3_demuxer_select="ac3_parser"
1427 asf_stream_muxer_select="asf_muxer"
1428 avisynth_demuxer_deps="avisynth"
1429 dirac_demuxer_select="dirac_parser"
1430 eac3_demuxer_select="ac3_parser"
1431 flac_demuxer_select="flac_parser"
1432 ipod_muxer_select="mov_muxer"
1433 libnut_demuxer_deps="libnut"
1434 libnut_muxer_deps="libnut"
1435 matroska_audio_muxer_select="matroska_muxer"
1436 matroska_demuxer_suggest="zlib bzlib"
1437 mov_demuxer_suggest="zlib"
1438 mp3_demuxer_select="mpegaudio_parser"
1439 mp4_muxer_select="mov_muxer"
1440 mpegtsraw_demuxer_select="mpegts_demuxer"
1441 mxf_d10_muxer_select="mxf_muxer"
1442 ogg_demuxer_select="golomb"
1443 psp_muxer_select="mov_muxer"
1444 rtp_demuxer_select="sdp_demuxer"
1445 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1446 rtsp_demuxer_select="http_protocol rtpdec"
1447 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1448 sap_demuxer_select="sdp_demuxer"
1449 sap_muxer_select="rtp_muxer rtp_protocol"
1450 sdp_demuxer_select="rtpdec"
1451 spdif_muxer_select="aac_parser"
1452 tg2_muxer_select="mov_muxer"
1453 tgp_muxer_select="mov_muxer"
1454 w64_demuxer_deps="wav_demuxer"
1455
1456 # indevs / outdevs
1457 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1458 alsa_outdev_deps="alsa_asoundlib_h"
1459 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1460 dv1394_indev_deps="dv1394 dv_demuxer"
1461 fbdev_indev_deps="linux_fb_h"
1462 jack_indev_deps="jack_jack_h"
1463 libdc1394_indev_deps="libdc1394"
1464 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1465 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1466 sndio_indev_deps="sndio_h"
1467 sndio_outdev_deps="sndio_h"
1468 v4l_indev_deps="linux_videodev_h"
1469 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1470 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1471 vfwcap_indev_extralibs="-lavicap32"
1472 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1473 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1474
1475 # protocols
1476 gopher_protocol_deps="network"
1477 http_protocol_deps="network"
1478 http_protocol_select="tcp_protocol"
1479 mmsh_protocol_select="http_protocol"
1480 mmst_protocol_deps="network"
1481 rtmp_protocol_select="tcp_protocol"
1482 rtp_protocol_select="udp_protocol"
1483 tcp_protocol_deps="network"
1484 udp_protocol_deps="network"
1485
1486 # filters
1487 blackframe_filter_deps="gpl"
1488 cropdetect_filter_deps="gpl"
1489 drawtext_filter_deps="libfreetype"
1490 frei0r_filter_deps="frei0r dlopen strtok_r"
1491 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1492 hqdn3d_filter_deps="gpl"
1493 mp_filter_deps="gpl"
1494 ocv_filter_deps="libopencv"
1495 scale_filter_deps="swscale"
1496 yadif_filter_deps="gpl"
1497
1498 # libraries
1499 avdevice_deps="avcodec avformat"
1500 avformat_deps="avcodec"
1501
1502 # programs
1503 ffmpeg_deps="avcodec avformat swscale"
1504 ffmpeg_select="buffer_filter"
1505 ffplay_deps="avcodec avformat swscale sdl"
1506 ffplay_select="rdft"
1507 ffprobe_deps="avcodec avformat"
1508 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1509 ffserver_extralibs='$ldl'
1510
1511 doc_deps="texi2html"
1512
1513 # tests
1514
1515 test_deps(){
1516     suf1=$1
1517     suf2=$2
1518     shift 2
1519     for v; do
1520         dep=${v%=*}
1521         tests=${v#*=}
1522         for name in ${tests}; do
1523             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1524         done
1525     done
1526 }
1527
1528 set_ne_test_deps(){
1529     eval ${1}_be_test_deps="bigendian"
1530     eval ${1}_le_test_deps="!bigendian"
1531 }
1532
1533 test_deps _encoder _decoder                                             \
1534     adpcm_g726=g726                                                     \
1535     adpcm_ima_qt                                                        \
1536     adpcm_ima_wav                                                       \
1537     adpcm_ms                                                            \
1538     adpcm_swf                                                           \
1539     adpcm_yamaha=adpcm_yam                                              \
1540     alac                                                                \
1541     asv1                                                                \
1542     asv2                                                                \
1543     bmp                                                                 \
1544     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1545     dvvideo="dv dv50"                                                   \
1546     ffv1                                                                \
1547     flac                                                                \
1548     flashsv                                                             \
1549     flv                                                                 \
1550     gif                                                                 \
1551     h261                                                                \
1552     h263="h263 h263p"                                                   \
1553     huffyuv                                                             \
1554     jpegls                                                              \
1555     mjpeg="jpg mjpeg ljpeg"                                             \
1556     mp2                                                                 \
1557     mpeg1video="mpeg mpeg1b"                                            \
1558     mpeg2video="mpeg2 mpeg2thread"                                      \
1559     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1560     msmpeg4v3=msmpeg4                                                   \
1561     msmpeg4v2                                                           \
1562     pbm=pbmpipe                                                         \
1563     pcx                                                                 \
1564     pgm="pgm pgmpipe"                                                   \
1565     png                                                                 \
1566     ppm="ppm ppmpipe"                                                   \
1567     rawvideo="rgb yuv"                                                  \
1568     roq                                                                 \
1569     rv10                                                                \
1570     rv20                                                                \
1571     sgi                                                                 \
1572     snow="snow snowll"                                                  \
1573     svq1                                                                \
1574     targa=tga                                                           \
1575     tiff                                                                \
1576     wmav1                                                               \
1577     wmav2                                                               \
1578     wmv1                                                                \
1579     wmv2                                                                \
1580
1581 test_deps _muxer _demuxer                                               \
1582     aiff                                                                \
1583     pcm_alaw=alaw                                                       \
1584     asf                                                                 \
1585     au                                                                  \
1586     avi                                                                 \
1587     dv=dv_fmt                                                           \
1588     ffm                                                                 \
1589     flv=flv_fmt                                                         \
1590     gxf                                                                 \
1591     matroska=mkv                                                        \
1592     mmf                                                                 \
1593     mov                                                                 \
1594     pcm_mulaw=mulaw                                                     \
1595     mxf                                                                 \
1596     nut                                                                 \
1597     ogg                                                                 \
1598     rawvideo=pixfmt                                                     \
1599     rm                                                                  \
1600     swf                                                                 \
1601     mpegts=ts                                                           \
1602     voc                                                                 \
1603     wav                                                                 \
1604     yuv4mpegpipe=yuv4mpeg                                               \
1605
1606 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1607 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1608
1609 set_ne_test_deps pixdesc
1610 set_ne_test_deps pixfmts_copy
1611 set_ne_test_deps pixfmts_crop
1612 set_ne_test_deps pixfmts_hflip
1613 set_ne_test_deps pixfmts_null
1614 set_ne_test_deps pixfmts_pad
1615 set_ne_test_deps pixfmts_scale
1616 set_ne_test_deps pixfmts_vflip
1617
1618 # default parameters
1619
1620 logfile="config.log"
1621
1622 # installation paths
1623 prefix_default="/usr/local"
1624 bindir_default='${prefix}/bin'
1625 datadir_default='${prefix}/share/ffmpeg'
1626 incdir_default='${prefix}/include'
1627 libdir_default='${prefix}/lib'
1628 mandir_default='${prefix}/share/man'
1629 shlibdir_default="$libdir_default"
1630
1631 # toolchain
1632 ar_default="ar"
1633 cc_default="gcc"
1634 cc_version=\"unknown\"
1635 host_cc_default="gcc"
1636 ln_s="ln -sf"
1637 nm_default="nm"
1638 objformat="elf"
1639 pkg_config_default=pkg-config
1640 ranlib="ranlib"
1641 strip_default="strip"
1642 yasmexe="yasm"
1643 nogas=":"
1644
1645 nm_opts='-g'
1646
1647 # machine
1648 arch_default=$(uname -m)
1649 cpu="generic"
1650
1651 # OS
1652 target_os_default=$(tolower $(uname -s))
1653 host_os=$target_os_default
1654
1655 # configurable options
1656 enable avcodec
1657 enable avdevice
1658 enable avfilter
1659 enable avformat
1660 enable avutil
1661 enable asm
1662 enable debug
1663 enable doc
1664 enable fastdiv
1665 enable ffmpeg
1666 enable ffplay
1667 enable ffprobe
1668 enable ffserver
1669 enable mpegaudio_hp
1670 enable network
1671 enable optimizations
1672 enable protocols
1673 enable static
1674 enable stripping
1675 enable swscale
1676 enable swscale_alpha
1677
1678 # build settings
1679 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1680 FFSERVERLDFLAGS=-Wl,-E
1681 LIBPREF="lib"
1682 LIBSUF=".a"
1683 FULLNAME='$(NAME)$(BUILDSUF)'
1684 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1685 SLIBPREF="lib"
1686 SLIBSUF=".so"
1687 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1688 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1689 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1690 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1691
1692 CC_O='-o $@'
1693
1694 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1695 host_libs='-lm'
1696
1697 target_path='$(CURDIR)'
1698
1699 # since the object filename is not given with the -MM flag, the compiler
1700 # is only able to print the basename, and we must add the path ourselves
1701 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1702 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1703
1704 # find source path
1705 source_path="$(dirname "$0")"
1706 enable source_path_used
1707 if test -f configure; then
1708     source_path="$(pwd)"
1709     disable source_path_used
1710 else
1711     source_path="$(cd "$source_path"; 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 exesuf() {
1860     case $1 in
1861         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1862     esac
1863 }
1864
1865 EXESUF=$(exesuf $target_os)
1866 HOSTEXESUF=$(exesuf $host_os)
1867
1868 # set temporary file name
1869 : ${TMPDIR:=$TEMPDIR}
1870 : ${TMPDIR:=$TMP}
1871 : ${TMPDIR:=/tmp}
1872
1873 if ! check_cmd mktemp -u XXXXXX; then
1874     # simple replacement for missing mktemp
1875     # NOT SAFE FOR GENERAL USE
1876     mktemp(){
1877         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1878     }
1879 fi
1880
1881 tmpfile(){
1882     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1883         (set -C; exec > $tmp) 2>/dev/null ||
1884         die "Unable to create temporary file in $TMPDIR."
1885     append TMPFILES $tmp
1886     eval $1=$tmp
1887 }
1888
1889 trap 'rm -f -- $TMPFILES' EXIT
1890
1891 tmpfile TMPC  .c
1892 tmpfile TMPE  $EXESUF
1893 tmpfile TMPH  .h
1894 tmpfile TMPO  .o
1895 tmpfile TMPS  .S
1896 tmpfile TMPV  .ver
1897 tmpfile TMPSH .sh
1898 tmpfile TMPASM .asm
1899
1900 unset -f mktemp
1901
1902 chmod +x $TMPE
1903
1904 # make sure we can execute files in $TMPDIR
1905 cat > $TMPSH 2>> $logfile <<EOF
1906 #! /bin/sh
1907 EOF
1908 chmod +x $TMPSH >> $logfile 2>&1
1909 if ! $TMPSH >> $logfile 2>&1; then
1910     cat <<EOF
1911 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1912 variable to another directory and make sure that it is not mounted noexec.
1913 EOF
1914     die "Sanity test failed."
1915 fi
1916
1917 filter_cflags=echo
1918 filter_cppflags=echo
1919 filter_asflags=echo
1920
1921 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1922     cc_type=llvm_gcc
1923     cc_version=__VERSION__
1924     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1925     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1926     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1927     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1928     speed_cflags='-O3'
1929     size_cflags='-Os'
1930 elif $cc -v 2>&1 | grep -qi ^gcc; then
1931     cc_type=gcc
1932     cc_version=__VERSION__
1933     gcc_version=$($cc --version | head -n1)
1934     gcc_basever=$($cc -dumpversion)
1935     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1936     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1937     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1938     if ! $cc -dumpversion | grep -q '^2\.'; then
1939         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1940         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1941     fi
1942     speed_cflags='-O3'
1943     size_cflags='-Os'
1944 elif $cc --version 2>/dev/null | grep -q Intel; then
1945     cc_type=icc
1946     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1947     cc_ident=$($cc --version | head -n1)
1948     icc_version=$($cc -dumpversion)
1949     CC_DEPFLAGS='-MMD'
1950     AS_DEPFLAGS='-MMD'
1951     speed_cflags='-O3'
1952     size_cflags='-Os'
1953     noopt_cflags='-O1'
1954 elif $cc -v 2>&1 | grep -q xlc; then
1955     cc_type=xlc
1956     cc_version="AV_STRINGIFY(__IBMC__)"
1957     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1958     speed_cflags='-O5'
1959     size_cflags='-O5 -qcompact'
1960 elif $cc -V 2>/dev/null | grep -q Compaq; then
1961     cc_type=ccc
1962     cc_version="AV_STRINGIFY(__DECC_VER)"
1963     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1964     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1965     debuglevel=3
1966     add_ldflags -Wl,-z,now # calls to libots crash without this
1967     speed_cflags='-fast'
1968     size_cflags='-O1'
1969 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1970     test -d "$sysroot" || die "No valid sysroot specified."
1971     cc_type=armcc
1972     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1973     cc_ident=$($cc --vsn | head -n1)
1974     armcc_conf="$PWD/armcc.conf"
1975     $cc --arm_linux_configure                 \
1976         --arm_linux_config_file="$armcc_conf" \
1977         --configure_sysroot="$sysroot"        \
1978         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1979         die "Error creating armcc configuration file."
1980     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1981     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1982     as_default="${cross_prefix}gcc"
1983     CC_DEPFLAGS='-MMD'
1984     AS_DEPFLAGS='-MMD'
1985     speed_cflags='-O3'
1986     size_cflags='-Os'
1987     filter_asflags="filter_out -W${armcc_opt}*"
1988 elif $cc -version 2>/dev/null | grep -q TMS470; then
1989     cc_type=tms470
1990     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1991     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1992     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1993     CC_O='-fr=$(@D)'
1994     as_default="${cross_prefix}gcc"
1995     ld_default="${cross_prefix}gcc"
1996     TMPO=$(basename $TMPC .c).o
1997     append TMPFILES $TMPO
1998     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1999     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2000     AS_DEPFLAGS='-MMD'
2001     speed_cflags='-O3 -mf=5'
2002     size_cflags='-O3 -mf=2'
2003     filter_cflags=tms470_flags
2004     tms470_flags(){
2005         for flag; do
2006             case $flag in
2007                 -march=*|-mcpu=*)
2008                     case "${flag#*=}" in
2009                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2010                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2011                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2012                         armv6*|arm11*)          echo -mv=6   ;;
2013                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2014                                                 echo -mv=5e  ;;
2015                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2016                     esac
2017                     ;;
2018                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2019                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2020                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2021                 -msoft-float)   echo --float_support=vfplib       ;;
2022                 -O[0-3]|-mf=*)  echo $flag                        ;;
2023                 -g)             echo -g -mn                       ;;
2024                 -pds=*)         echo $flag                        ;;
2025             esac
2026         done
2027     }
2028 elif $cc -v 2>&1 | grep -q clang; then
2029     cc_type=clang
2030     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2031         cc_version=__clang_version__ || cc_version=__VERSION__
2032     cc_ident=$($cc --version | head -n1)
2033     CC_DEPFLAGS='-MMD'
2034     AS_DEPFLAGS='-MMD'
2035     speed_cflags='-O3'
2036     size_cflags='-Os'
2037 elif $cc -V 2>&1 | grep -q Sun; then
2038     cc_type=suncc
2039     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2040     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2041     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2042     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2043     speed_cflags='-O5'
2044     size_cflags='-O5 -xspace'
2045     filter_cflags=suncc_flags
2046     suncc_flags(){
2047         for flag; do
2048             case $flag in
2049                 -march=*|-mcpu=*)
2050                     case "${flag#*=}" in
2051                         native)                   echo -xtarget=native       ;;
2052                         v9|niagara)               echo -xarch=sparc          ;;
2053                         ultrasparc)               echo -xarch=sparcvis       ;;
2054                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2055                         i586|pentium)             echo -xchip=pentium        ;;
2056                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2057                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2058                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2059                         pentium4*)          echo -xtarget=pentium4           ;;
2060                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2061                         *-sse3)             echo -xarch=sse3                 ;;
2062                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2063                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2064                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2065                         k8|opteron|athlon64|athlon-fx)
2066                                                   echo -xarch=sse2a          ;;
2067                         athlon*)                  echo -xarch=pentium_proa   ;;
2068                     esac
2069                     ;;
2070                 -std=c99)             echo -xc99              ;;
2071                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2072                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2073                 -W*,*)                echo $flag              ;;
2074                 -f*-*|-W*)                                    ;;
2075                 *)                    echo $flag              ;;
2076             esac
2077         done
2078     }
2079 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2080     cc_type=pathscale
2081     cc_version=__PATHSCALE__
2082     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2083     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2084     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2085     speed_cflags='-O2'
2086     size_cflags='-Os'
2087 elif $cc -v 2>&1 | grep -q Open64; then
2088     cc_type=open64
2089     cc_version=__OPEN64__
2090     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2091     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2092     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2093     speed_cflags='-O2'
2094     size_cflags='-Os'
2095 fi
2096
2097 test -n "$cc_type" && enable $cc_type ||
2098     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2099
2100 : ${as_default:=$cc}
2101 : ${dep_cc_default:=$cc}
2102 : ${ld_default:=$cc}
2103 set_default ar as dep_cc ld
2104
2105 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2106 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2107
2108 add_cflags $extra_cflags
2109 add_asflags $extra_cflags
2110
2111 if test -n "$sysroot"; then
2112     case "$cc_type" in
2113         gcc|llvm_gcc|clang)
2114             add_cppflags --sysroot="$sysroot"
2115             add_ldflags --sysroot="$sysroot"
2116         ;;
2117         tms470)
2118             add_cppflags -I"$sysinclude"
2119             add_ldflags  --sysroot="$sysroot"
2120         ;;
2121     esac
2122 fi
2123
2124 if test "$cpu" = host; then
2125     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2126
2127     case "$cc_type" in
2128         gcc|llvm_gcc)
2129             check_native(){
2130                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2131                 sed -n "/$1=/{
2132                             s/.*$1=\\([^ ]*\\).*/\\1/
2133                             p
2134                             q
2135                         }" $TMPE
2136             }
2137             cpu=$(check_native -march || check_native -mcpu)
2138         ;;
2139     esac
2140
2141     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2142 fi
2143
2144 # Deal with common $arch aliases
2145 case "$arch" in
2146     arm*)
2147         arch="arm"
2148     ;;
2149     mips|mipsel|IP*)
2150         arch="mips"
2151     ;;
2152     mips64*)
2153         arch="mips"
2154         subarch="mips64"
2155     ;;
2156     parisc|hppa)
2157         arch="parisc"
2158     ;;
2159     parisc64|hppa64)
2160         arch="parisc"
2161         subarch="parisc64"
2162     ;;
2163     "Power Macintosh"|ppc|powerpc)
2164         arch="ppc"
2165     ;;
2166     ppc64|powerpc64)
2167         arch="ppc"
2168         subarch="ppc64"
2169     ;;
2170     s390|s390x)
2171         arch="s390"
2172     ;;
2173     sh4|sh)
2174         arch="sh4"
2175     ;;
2176     sun4u|sparc64)
2177         arch="sparc"
2178         subarch="sparc64"
2179     ;;
2180     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2181         arch="x86"
2182     ;;
2183 esac
2184
2185 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2186 enable $arch
2187
2188 # Add processor-specific flags
2189 if test "$cpu" = generic; then
2190     : do nothing
2191 elif enabled ppc; then
2192
2193     case $(tolower $cpu) in
2194         601|ppc601|powerpc601)
2195             cpuflags="-mcpu=601"
2196             disable altivec
2197         ;;
2198         603*|ppc603*|powerpc603*)
2199             cpuflags="-mcpu=603"
2200             disable altivec
2201         ;;
2202         604*|ppc604*|powerpc604*)
2203             cpuflags="-mcpu=604"
2204             disable altivec
2205         ;;
2206         g3|75*|ppc75*|powerpc75*)
2207             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2208             disable altivec
2209         ;;
2210         g4|745*|ppc745*|powerpc745*)
2211             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2212         ;;
2213         74*|ppc74*|powerpc74*)
2214             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2215         ;;
2216         g5|970|ppc970|powerpc970|power4*)
2217             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2218         ;;
2219         cell)
2220             cpuflags="-mcpu=cell"
2221             enable ldbrx
2222         ;;
2223         e500v2)
2224             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2225             disable altivec
2226         ;;
2227         e500)
2228             cpuflags="-mcpu=8540 -mhard-float"
2229             disable altivec
2230         ;;
2231     esac
2232
2233 elif enabled x86; then
2234
2235     case $cpu in
2236         i[345]86|pentium)
2237             cpuflags="-march=$cpu"
2238             disable mmx
2239         ;;
2240         # targets that do NOT support conditional mov (cmov)
2241         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2242             cpuflags="-march=$cpu"
2243             disable cmov
2244         ;;
2245         # targets that do support conditional mov (cmov)
2246         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2247             cpuflags="-march=$cpu"
2248             enable cmov
2249             enable fast_cmov
2250         ;;
2251         # targets that do support conditional mov but on which it's slow
2252         pentium4|pentium4m|prescott|nocona)
2253             cpuflags="-march=$cpu"
2254             enable cmov
2255             disable fast_cmov
2256         ;;
2257     esac
2258
2259 elif enabled sparc; then
2260
2261     case $cpu in
2262         niagara)
2263             cpuflags="-mcpu=$cpu"
2264             disable vis
2265         ;;
2266         sparc64)
2267             cpuflags="-mcpu=v9"
2268         ;;
2269     esac
2270
2271 elif enabled arm; then
2272
2273     case $cpu in
2274         armv*)
2275             cpuflags="-march=$cpu"
2276             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2277         ;;
2278         *)
2279             cpuflags="-mcpu=$cpu"
2280             case $cpu in
2281                 cortex-a*)                               subarch=armv7a  ;;
2282                 cortex-r*)                               subarch=armv7r  ;;
2283                 cortex-m*)                               subarch=armv7m  ;;
2284                 arm11*)                                  subarch=armv6   ;;
2285                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2286                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2287             esac
2288         ;;
2289     esac
2290
2291 elif enabled alpha; then
2292
2293     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2294
2295 elif enabled bfin; then
2296
2297     cpuflags="-mcpu=$cpu"
2298
2299 elif enabled mips; then
2300
2301     cpuflags="-march=$cpu"
2302
2303 elif enabled avr32; then
2304
2305     case $cpu in
2306         ap7[02]0[0-2])
2307             subarch="avr32_ap"
2308             cpuflags="-mpart=$cpu"
2309         ;;
2310         ap)
2311             subarch="avr32_ap"
2312             cpuflags="-march=$cpu"
2313         ;;
2314         uc3[ab]*)
2315             subarch="avr32_uc"
2316             cpuflags="-mcpu=$cpu"
2317         ;;
2318         uc)
2319             subarch="avr32_uc"
2320             cpuflags="-march=$cpu"
2321         ;;
2322     esac
2323
2324 fi
2325
2326 add_cflags $cpuflags
2327 add_asflags $cpuflags
2328
2329 # compiler sanity check
2330 check_exec <<EOF
2331 int main(void){ return 0; }
2332 EOF
2333 if test "$?" != 0; then
2334     echo "$cc is unable to create an executable file."
2335     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2336         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2337         echo "Only do this if you know what cross compiling means."
2338     fi
2339     die "C compiler test failed."
2340 fi
2341
2342 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2343 check_cflags -std=c99
2344 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2345 #include <stdlib.h>
2346 EOF
2347 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2348 #include <stdlib.h>
2349 EOF
2350
2351 check_host_cflags -std=c99
2352
2353 case "$arch" in
2354     alpha|ia64|mips|parisc|sparc)
2355         spic=$shared
2356     ;;
2357     x86)
2358         subarch="x86_32"
2359         check_cc <<EOF && subarch="x86_64"
2360         int test[(int)sizeof(char*) - 7];
2361 EOF
2362         if test "$subarch" = "x86_64"; then
2363             spic=$shared
2364         fi
2365     ;;
2366 esac
2367
2368 enable $subarch
2369 enabled spic && enable pic
2370
2371 # OS specific
2372 case $target_os in
2373     haiku)
2374         prefix_default="/boot/common"
2375         network_extralibs="-lnetwork"
2376         host_libs=
2377         ;;
2378     sunos)
2379         FFSERVERLDFLAGS=""
2380         SHFLAGS='-shared -Wl,-h,$$(@F)'
2381         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2382         network_extralibs="-lsocket -lnsl"
2383         add_cppflags -D__EXTENSIONS__
2384         nm_opts='-P -g'
2385         ;;
2386     netbsd)
2387         disable symver
2388         oss_indev_extralibs="-lossaudio"
2389         oss_outdev_extralibs="-lossaudio"
2390         add_cppflags -D_XOPEN_SOURCE=600
2391         ;;
2392     openbsd)
2393         enable malloc_aligned
2394         # On OpenBSD 4.5. the compiler does not use PIC unless
2395         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2396         # however the generated executable will not do anything
2397         # (simply quits with exit-code 1, no crash, no output).
2398         # Thus explicitly enable PIC here.
2399         enable pic
2400         disable symver
2401         SHFLAGS='-shared'
2402         oss_indev_extralibs="-lossaudio"
2403         oss_outdev_extralibs="-lossaudio"
2404         ;;
2405     dragonfly)
2406         enable malloc_aligned
2407         disable symver
2408         ;;
2409     freebsd)
2410         enable malloc_aligned
2411         ;;
2412     bsd/os)
2413         add_extralibs -lpoll -lgnugetopt
2414         strip="strip -d"
2415         ;;
2416     darwin)
2417         enable malloc_aligned
2418         gas="gas-preprocessor.pl $cc"
2419         enabled ppc && add_asflags -force_cpusubtype_ALL
2420         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2421         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2422         strip="${strip} -x"
2423         add_ldflags -Wl,-dynamic,-search_paths_first
2424         SLIBSUF=".dylib"
2425         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2426         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2427         FFSERVERLDFLAGS=-Wl,-bind_at_load
2428         objformat="macho"
2429         enabled x86_64 && objformat="macho64"
2430         enabled_any pic shared ||
2431             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2432         ;;
2433     mingw32*)
2434         if test $target_os = "mingw32ce"; then
2435             disable network
2436         else
2437             target_os=mingw32
2438         fi
2439         LIBTARGET=i386
2440         if enabled x86_64; then
2441             enable malloc_aligned
2442             LIBTARGET=x64
2443         elif enabled arm; then
2444             LIBTARGET=arm-wince
2445         fi
2446         shlibdir_default="$bindir_default"
2447         SLIBPREF=""
2448         SLIBSUF=".dll"
2449         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2450         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2451         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2452         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2453             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2454             install -d "$(LIBDIR)"; \
2455             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2456         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2457         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'
2458         objformat="win32"
2459         enable dos_paths
2460         check_cflags -fno-common
2461         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2462                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2463                 die "ERROR: MinGW runtime version must be >= 3.15."
2464         add_cppflags -U__STRICT_ANSI__
2465         ;;
2466     cygwin*)
2467         target_os=cygwin
2468         shlibdir_default="$bindir_default"
2469         SLIBPREF="cyg"
2470         SLIBSUF=".dll"
2471         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2472         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2473         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2474         objformat="win32"
2475         enable dos_paths
2476         check_cflags -fno-common
2477         ;;
2478     *-dos|freedos|opendos)
2479         network_extralibs="-lsocket"
2480         objformat="coff"
2481         enable dos_paths
2482         ;;
2483     linux)
2484         enable dv1394
2485         ;;
2486     irix*)
2487         target_os=irix
2488         ranlib="echo ignoring ranlib"
2489         ;;
2490     os/2*)
2491         strip="lxlite -CS"
2492         ln_s="cp -f"
2493         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2494         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2495         FFSERVERLDFLAGS=""
2496         LIBSUF="_s.a"
2497         SLIBPREF=""
2498         SLIBSUF=".dll"
2499         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2500         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2501         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2502           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2503           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2504           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2505           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2506           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2507         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2508           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2509         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2510         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2511         enable dos_paths
2512         ;;
2513     gnu/kfreebsd)
2514         ;;
2515     gnu)
2516         ;;
2517     qnx)
2518         add_cppflags -D_QNX_SOURCE
2519         network_extralibs="-lsocket"
2520         ;;
2521     symbian)
2522         SLIBSUF=".dll"
2523         enable dos_paths
2524         add_cflags --include=$sysinclude/gcce/gcce.h
2525         ;;
2526     none)
2527         ;;
2528     *)
2529         die "Unknown OS '$target_os'."
2530         ;;
2531 esac
2532
2533 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2534
2535 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2536
2537 set_default $PATHS_LIST
2538
2539 # we need to build at least one lib type
2540 if ! enabled_any static shared; then
2541     cat <<EOF
2542 At least one library type must be built.
2543 Specify --enable-static to build the static libraries or --enable-shared to
2544 build the shared libraries as well. To only build the shared libraries specify
2545 --disable-static in addition to --enable-shared.
2546 EOF
2547     exit 1;
2548 fi
2549
2550 disabled static && LIBNAME=""
2551
2552 die_license_disabled() {
2553     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2554 }
2555
2556 die_license_disabled gpl libx264
2557 die_license_disabled gpl libxavs
2558 die_license_disabled gpl libxvid
2559 die_license_disabled gpl postproc
2560 die_license_disabled gpl x11grab
2561
2562 die_license_disabled nonfree libfaac
2563
2564 die_license_disabled version3 libopencore_amrnb
2565 die_license_disabled version3 libopencore_amrwb
2566 die_license_disabled version3 libvo_aacenc
2567 die_license_disabled version3 libvo_amrwbenc
2568
2569 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2570
2571 disabled optimizations || check_cflags -fomit-frame-pointer
2572
2573 enable_pic() {
2574     enable pic
2575     add_cppflags -DPIC
2576     add_cflags   -fPIC
2577     add_asflags  -fPIC
2578 }
2579
2580 enabled pic && enable_pic
2581
2582 check_cc <<EOF || die "Symbol mangling check failed."
2583 int ff_extern;
2584 EOF
2585 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2586 extern_prefix=${sym%%ff_extern*}
2587
2588 check_cc <<EOF && enable inline_asm
2589 void foo(void) { __asm__ volatile ("" ::); }
2590 EOF
2591
2592 _restrict=
2593 for restrict_keyword in restrict __restrict__ __restrict; do
2594     check_cc <<EOF && _restrict=$restrict_keyword && break
2595 void foo(char * $restrict_keyword p);
2596 EOF
2597 done
2598
2599 check_cc <<EOF && enable attribute_packed
2600 struct { int x; } __attribute__((packed)) x;
2601 EOF
2602
2603 check_cc <<EOF && enable attribute_may_alias
2604 union { int x; } __attribute__((may_alias)) x;
2605 EOF
2606
2607 check_cc <<EOF || die "endian test failed"
2608 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2609 EOF
2610 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2611
2612 if enabled alpha; then
2613
2614     check_cflags -mieee
2615
2616 elif enabled arm; then
2617
2618     check_cflags -marm
2619     nogas=die
2620
2621     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2622         enable vfp_args
2623     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2624         case "${cross_prefix:-$cc}" in
2625             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2626             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2627 __asm__ (".eabi_attribute 28, 1");
2628 int main(void) { return 0; }
2629 EOF
2630         esac
2631         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2632     fi
2633
2634     # We have to check if pld is a nop and disable it.
2635     check_asm pld '"pld [r0]"'
2636
2637     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2638     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2639     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2640     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2641     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2642     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2643
2644     enabled_all armv6t2 shared !pic && enable_pic
2645
2646 elif enabled mips; then
2647
2648     check_asm loongson '"dmult.g $1, $2, $3"'
2649     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2650
2651 elif enabled ppc; then
2652
2653     enable local_aligned_8 local_aligned_16
2654
2655     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2656     check_asm ibm_asm   '"add 0, 0, 0"'
2657     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2658     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2659
2660     # AltiVec flags: The FSF version of GCC differs from the Apple version
2661     if enabled altivec; then
2662         nogas=warn
2663         check_cflags -maltivec -mabi=altivec &&
2664         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2665         check_cflags -faltivec
2666
2667         # check if our compiler supports Motorola AltiVec C API
2668         check_cc <<EOF || disable altivec
2669 $inc_altivec_h
2670 int main(void) {
2671     vector signed int v1, v2, v3;
2672     v1 = vec_add(v2,v3);
2673     return 0;
2674 }
2675 EOF
2676
2677         # check if our compiler supports braces for vector declarations
2678         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2679 $inc_altivec_h
2680 int main (void) { (vector int) {1}; return 0; }
2681 EOF
2682     fi
2683
2684 elif enabled sparc; then
2685
2686     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2687         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2688
2689 elif enabled x86; then
2690
2691     enable local_aligned_8 local_aligned_16
2692
2693     # check whether EBP is available on x86
2694     # As 'i' is stored on the stack, this program will crash
2695     # if the base pointer is used to access it because the
2696     # base pointer is cleared in the inline assembly code.
2697     check_exec_crash <<EOF && enable ebp_available
2698     volatile int i=0;
2699     __asm__ volatile (
2700         "xorl %%ebp, %%ebp"
2701     ::: "%ebp");
2702     return i;
2703 EOF
2704
2705     # check whether EBX is available on x86
2706     check_asm ebx_available '""::"b"(0)' &&
2707         check_asm ebx_available '"":::"%ebx"'
2708
2709     # check whether xmm clobbers are supported
2710     check_asm xmm_clobbers '"":::"%xmm0"'
2711
2712     # check whether more than 10 operands are supported
2713     check_cc <<EOF && enable ten_operands
2714 int main(void) {
2715     int x=0;
2716     __asm__ volatile(
2717         ""
2718         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2719     );
2720     return 0;
2721 }
2722 EOF
2723
2724     # check whether binutils is new enough to compile SSSE3/MMX2
2725     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2726     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2727
2728     check_asm bswap '"bswap %%eax" ::: "%eax"'
2729
2730     if ! disabled_any asm mmx yasm; then
2731         if check_cmd $yasmexe --version; then
2732             enabled x86_64 && yasm_extra="-m amd64"
2733             yasm_debug="-g dwarf2"
2734         elif check_cmd nasm -v; then
2735             yasmexe=nasm
2736             yasm_debug="-g -F dwarf"
2737             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2738         fi
2739
2740         YASMFLAGS="-f $objformat $yasm_extra"
2741         enabled pic               && append YASMFLAGS "-DPIC"
2742         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2743         case "$objformat" in
2744             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2745         esac
2746
2747         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2748             die "yasm not found, use --disable-yasm for a crippled build"
2749         check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2750     fi
2751
2752     case "$cpu" in
2753         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2754             disable fast_clz
2755         ;;
2756     esac
2757
2758 fi
2759
2760 if enabled asm; then
2761     as=${gas:=$as}
2762     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2763         $nogas "GNU assembler not found, install gas-preprocessor"
2764 fi
2765
2766 check_ldflags -Wl,--as-needed
2767
2768 if check_func dlopen; then
2769     ldl=
2770 elif check_func dlopen -ldl; then
2771     ldl=-ldl
2772 fi
2773
2774 if enabled network; then
2775     check_type "sys/types.h sys/socket.h" socklen_t
2776     check_type netdb.h "struct addrinfo"
2777     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2778     check_type netinet/in.h "struct sockaddr_in6"
2779     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2780     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2781     # Prefer arpa/inet.h over winsock2
2782     if check_header arpa/inet.h ; then
2783         check_func closesocket
2784     elif check_header winsock2.h ; then
2785         check_func_headers winsock2.h closesocket -lws2 && \
2786             network_extralibs="-lws2" || \
2787         { check_func_headers winsock2.h closesocket -lws2_32 && \
2788             network_extralibs="-lws2_32"; }
2789         check_type ws2tcpip.h socklen_t
2790         check_type ws2tcpip.h "struct addrinfo"
2791         check_type ws2tcpip.h "struct ipv6_mreq"
2792         check_type ws2tcpip.h "struct sockaddr_in6"
2793         check_type ws2tcpip.h "struct sockaddr_storage"
2794         check_struct winsock2.h "struct sockaddr" sa_len
2795     else
2796         disable network
2797     fi
2798 fi
2799
2800 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2801 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2802
2803 check_func  fcntl
2804 check_func  fork
2805 check_func  getaddrinfo $network_extralibs
2806 check_func  gethrtime
2807 check_func  getrusage
2808 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2809 check_func  inet_aton $network_extralibs
2810 check_func  isatty
2811 check_func  localtime_r
2812 check_func  ${malloc_prefix}memalign            && enable memalign
2813 check_func  mkstemp
2814 check_func  mmap
2815 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2816 check_func  setrlimit
2817 check_func  strerror_r
2818 check_func  strtok_r
2819 check_func_headers conio.h kbhit
2820 check_func_headers io.h setmode
2821 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2822 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2823 check_func_headers windows.h GetProcessTimes
2824 check_func_headers windows.h MapViewOfFile
2825 check_func_headers windows.h VirtualAlloc
2826
2827 check_header dlfcn.h
2828 check_header dxva2api.h
2829 check_header libcrystalhd/libcrystalhd_if.h
2830 check_header malloc.h
2831 check_header poll.h
2832 check_header sys/mman.h
2833 check_header sys/resource.h
2834 check_header sys/select.h
2835 check_header termios.h
2836 check_header vdpau/vdpau.h
2837 check_header vdpau/vdpau_x11.h
2838 check_header X11/extensions/XvMClib.h
2839
2840 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2841
2842 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2843      enabled_any $need_memalign ; then
2844     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2845 fi
2846
2847 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2848 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2849
2850 # check for some common methods of building with pthread support
2851 # do this before the optional library checks as some of them require pthreads
2852 if ! disabled pthreads && ! enabled w32threads; then
2853     enable pthreads
2854     if check_func pthread_create; then
2855         :
2856     elif check_func pthread_create -pthread; then
2857         add_cflags -pthread
2858         add_extralibs -pthread
2859     elif check_func pthread_create -pthreads; then
2860         add_cflags -pthreads
2861         add_extralibs -pthreads
2862     elif check_func pthread_create -lpthreadGC2; then
2863         add_extralibs -lpthreadGC2
2864     elif ! check_lib pthread.h pthread_create -lpthread; then
2865         disable pthreads
2866     fi
2867 fi
2868
2869 for thread in $THREADS_LIST; do
2870     if enabled $thread; then
2871         test -n "$thread_type" &&
2872             die "ERROR: Only one thread type must be selected." ||
2873             thread_type="$thread"
2874     fi
2875 done
2876
2877 check_lib math.h sin -lm && LIBM="-lm"
2878 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2879 enabled vaapi && require vaapi va/va.h vaInitialize -lva
2880
2881 check_mathfunc exp2
2882 check_mathfunc exp2f
2883 check_mathfunc llrint
2884 check_mathfunc llrintf
2885 check_mathfunc log2
2886 check_mathfunc log2f
2887 check_mathfunc lrint
2888 check_mathfunc lrintf
2889 check_mathfunc round
2890 check_mathfunc roundf
2891 check_mathfunc trunc
2892 check_mathfunc truncf
2893
2894 # these are off by default, so fail if requested and not available
2895 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2896 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0
2897 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2898 enabled libdirac   && require_pkg_config dirac                          \
2899     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2900     "dirac_decoder_init dirac_encoder_init"
2901 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2902 enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2903 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2904 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2905 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2906 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2907 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2908 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2909 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2910 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2911 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2912 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2913 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2914 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2915 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2916 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2917 enabled libvpx     && {
2918     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2919                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
2920     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
2921                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
2922 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2923                       { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2924                         die "ERROR: libx264 version must be >= 0.99."; }
2925 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2926 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2927 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2928
2929 # libdc1394 check
2930 if enabled libdc1394; then
2931     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2932         enable libdc1394_2; } ||
2933     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2934         enable libdc1394_1; } ||
2935     die "ERROR: No version of libdc1394 found "
2936 fi
2937
2938 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2939     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2940     enable sdl &&
2941     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2942 fi
2943
2944 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2945
2946 check_header linux/fb.h
2947 check_header linux/videodev.h
2948 check_header linux/videodev2.h
2949 check_header sys/videoio.h
2950
2951 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2952 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2953 # w32api 3.12 had it defined wrong
2954 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2955
2956 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2957 { check_header dev/bktr/ioctl_meteor.h &&
2958   check_header dev/bktr/ioctl_bt848.h; } ||
2959 { check_header machine/ioctl_meteor.h &&
2960   check_header machine/ioctl_bt848.h; } ||
2961 { check_header dev/video/meteor/ioctl_meteor.h &&
2962   check_header dev/video/bktr/ioctl_bt848.h; } ||
2963 check_header dev/ic/bt8xx.h
2964
2965 check_header sndio.h
2966 if check_struct sys/soundcard.h audio_buf_info bytes; then
2967     enable_safe sys/soundcard.h
2968 else
2969     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
2970     #include <sys/soundcard.h>
2971     audio_buf_info abc;
2972 EOF
2973 fi
2974 check_header soundcard.h
2975
2976 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2977
2978 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2979
2980 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2981
2982 enabled x11grab                         &&
2983 check_header X11/Xlib.h                 &&
2984 check_header X11/extensions/XShm.h      &&
2985 check_header X11/extensions/Xfixes.h    &&
2986 check_func XOpenDisplay -lX11           &&
2987 check_func XShmCreateImage -lX11 -lXext &&
2988 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2989
2990 if ! disabled vaapi; then
2991     check_lib va/va.h vaInitialize -lva && {
2992         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2993         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
2994     } || disable vaapi
2995 fi
2996
2997 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2998 check_cpp_condition \
2999     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3000     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3001       disable vdpau; }
3002 fi
3003
3004 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3005
3006 # add some useful compiler flags if supported
3007 check_cflags -Wdeclaration-after-statement
3008 check_cflags -Wall
3009 check_cflags -Wno-parentheses
3010 check_cflags -Wno-switch
3011 check_cflags -Wdisabled-optimization
3012 check_cflags -Wpointer-arith
3013 check_cflags -Wredundant-decls
3014 check_cflags -Wno-pointer-sign
3015 check_cflags -Wcast-qual
3016 check_cflags -Wwrite-strings
3017 check_cflags -Wtype-limits
3018 check_cflags -Wundef
3019 check_cflags -Wmissing-prototypes
3020 enabled extra_warnings && check_cflags -Winline
3021
3022 # add some linker flags
3023 check_ldflags -Wl,--warn-common
3024 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
3025 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3026
3027 echo "X{};" > $TMPV
3028 if test_ldflags -Wl,--version-script,$TMPV; then
3029     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3030     check_cc <<EOF && enable symver_asm_label
3031 void ff_foo(void) __asm__ ("av_foo@VERSION");
3032 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3033 EOF
3034     check_cc <<EOF && enable symver_gnu_asm
3035 __asm__(".symver ff_foo,av_foo@VERSION");
3036 void ff_foo(void) {}
3037 EOF
3038 fi
3039
3040 if enabled small; then
3041     add_cflags $size_cflags
3042     optimizations="small"
3043 elif enabled optimizations; then
3044     add_cflags $speed_cflags
3045 else
3046     add_cflags $noopt_cflags
3047 fi
3048 check_cflags -fno-math-errno
3049 check_cflags -fno-signed-zeros
3050
3051 if enabled icc; then
3052     # Just warnings, no remarks
3053     check_cflags -w1
3054     # -wd: Disable following warnings
3055     # 144, 167, 556: -Wno-pointer-sign
3056     # 1292: attribute "foo" ignored
3057     # 10006: ignoring unknown option -fno-signed-zeros
3058     # 10148: ignoring unknown option -Wno-parentheses
3059     # 10156: ignoring option '-W'; no argument required
3060     check_cflags -wd144,167,556,1292,10006,10148,10156
3061     # 11030: Warning unknown option --as-needed
3062     # 10156: ignoring option '-export'; no argument required
3063     check_ldflags -wd10156,11030
3064     # Allow to compile with optimizations
3065     check_ldflags -march=$cpu
3066     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3067     enable ebp_available
3068     if enabled x86_32; then
3069         test ${icc_version%%.*} -ge 11 && \
3070             check_cflags -falign-stack=maintain-16-byte || \
3071             disable aligned_stack
3072     fi
3073 elif enabled ccc; then
3074     # disable some annoying warnings
3075     add_cflags -msg_disable cvtu32to64
3076     add_cflags -msg_disable embedcomment
3077     add_cflags -msg_disable needconstext
3078     add_cflags -msg_disable nomainieee
3079     add_cflags -msg_disable ptrmismatch1
3080     add_cflags -msg_disable unreachcode
3081 elif enabled gcc; then
3082     check_cflags -fno-tree-vectorize
3083     check_cflags -Werror=implicit-function-declaration
3084     check_cflags -Werror=missing-prototypes
3085 elif enabled llvm_gcc; then
3086     check_cflags -mllvm -stack-alignment=16
3087 elif enabled clang; then
3088     check_cflags -mllvm -stack-alignment=16
3089     check_cflags -Qunused-arguments
3090 elif enabled armcc; then
3091     # 2523: use of inline assembler is deprecated
3092     add_cflags -W${armcc_opt},--diag_suppress=2523
3093     add_cflags -W${armcc_opt},--diag_suppress=1207
3094     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3095     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3096 elif enabled tms470; then
3097     add_cflags -pds=824 -pds=837
3098 elif enabled pathscale; then
3099     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3100 fi
3101
3102 enabled_any $THREADS_LIST      && enable threads
3103
3104 check_deps $CONFIG_LIST       \
3105            $CONFIG_EXTRA      \
3106            $HAVE_LIST         \
3107            $DECODER_LIST      \
3108            $ENCODER_LIST      \
3109            $HWACCEL_LIST      \
3110            $PARSER_LIST       \
3111            $BSF_LIST          \
3112            $DEMUXER_LIST      \
3113            $MUXER_LIST        \
3114            $FILTER_LIST       \
3115            $INDEV_LIST        \
3116            $OUTDEV_LIST       \
3117            $PROTOCOL_LIST     \
3118            $ACODEC_TESTS      \
3119            $VCODEC_TESTS      \
3120            $LAVF_TESTS        \
3121            $LAVFI_TESTS       \
3122            $SEEK_TESTS        \
3123
3124 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3125
3126 echo "install prefix            $prefix"
3127 echo "source path               $source_path"
3128 echo "C compiler                $cc"
3129 echo "ARCH                      $arch ($cpu)"
3130 if test "$build_suffix" != ""; then
3131     echo "build suffix              $build_suffix"
3132 fi
3133 if test "$extra_version" != ""; then
3134     echo "version string suffix     $extra_version"
3135 fi
3136 echo "big-endian                ${bigendian-no}"
3137 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3138 if enabled x86; then
3139     echo "yasm                      ${yasm-no}"
3140     echo "MMX enabled               ${mmx-no}"
3141     echo "MMX2 enabled              ${mmx2-no}"
3142     echo "3DNow! enabled            ${amd3dnow-no}"
3143     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3144     echo "SSE enabled               ${sse-no}"
3145     echo "SSSE3 enabled             ${ssse3-no}"
3146     echo "CMOV enabled              ${cmov-no}"
3147     echo "CMOV is fast              ${fast_cmov-no}"
3148     echo "EBX available             ${ebx_available-no}"
3149     echo "EBP available             ${ebp_available-no}"
3150     echo "10 operands supported     ${ten_operands-no}"
3151 fi
3152 if enabled arm; then
3153     echo "ARMv5TE enabled           ${armv5te-no}"
3154     echo "ARMv6 enabled             ${armv6-no}"
3155     echo "ARMv6T2 enabled           ${armv6t2-no}"
3156     echo "ARM VFP enabled           ${armvfp-no}"
3157     echo "IWMMXT enabled            ${iwmmxt-no}"
3158     echo "NEON enabled              ${neon-no}"
3159 fi
3160 if enabled mips; then
3161     echo "MMI enabled               ${mmi-no}"
3162 fi
3163 if enabled ppc; then
3164     echo "AltiVec enabled           ${altivec-no}"
3165     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3166     echo "dcbzl available           ${dcbzl-no}"
3167 fi
3168 if enabled sparc; then
3169     echo "VIS enabled               ${vis-no}"
3170 fi
3171 echo "debug symbols             ${debug-no}"
3172 echo "strip symbols             ${stripping-no}"
3173 echo "optimizations             ${optimizations-no}"
3174 echo "static                    ${static-no}"
3175 echo "shared                    ${shared-no}"
3176 echo "postprocessing support    ${postproc-no}"
3177 echo "new filter support        ${avfilter-no}"
3178 echo "network support           ${network-no}"
3179 echo "threading support         ${thread_type-no}"
3180 echo "SDL support               ${sdl-no}"
3181 echo "Sun medialib support      ${mlib-no}"
3182 echo "AVISynth enabled          ${avisynth-no}"
3183 echo "libcelt enabled           ${libcelt-no}"
3184 echo "frei0r enabled            ${frei0r-no}"
3185 echo "libdc1394 support         ${libdc1394-no}"
3186 echo "libdirac enabled          ${libdirac-no}"
3187 echo "libfaac enabled           ${libfaac-no}"
3188 echo "libgsm enabled            ${libgsm-no}"
3189 echo "libmp3lame enabled        ${libmp3lame-no}"
3190 echo "libnut enabled            ${libnut-no}"
3191 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3192 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3193 echo "libopencv support         ${libopencv-no}"
3194 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3195 echo "librtmp enabled           ${librtmp-no}"
3196 echo "libschroedinger enabled   ${libschroedinger-no}"
3197 echo "libspeex enabled          ${libspeex-no}"
3198 echo "libtheora enabled         ${libtheora-no}"
3199 echo "libva enabled             ${vaapi-no}"
3200 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3201 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3202 echo "libvorbis enabled         ${libvorbis-no}"
3203 echo "libvpx enabled            ${libvpx-no}"
3204 echo "libx264 enabled           ${libx264-no}"
3205 echo "libxavs enabled           ${libxavs-no}"
3206 echo "libxvid enabled           ${libxvid-no}"
3207 echo "zlib enabled              ${zlib-no}"
3208 echo "bzlib enabled             ${bzlib-no}"
3209 echo
3210
3211 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3212     echo "Enabled ${type}s:"
3213     eval list=\$$(toupper $type)_LIST
3214     print_enabled '_*' $list | sort | pr -r -3 -t
3215     echo
3216 done
3217
3218 license="LGPL version 2.1 or later"
3219 if enabled nonfree; then
3220     license="nonfree and unredistributable"
3221 elif enabled gplv3; then
3222     license="GPL version 3 or later"
3223 elif enabled lgplv3; then
3224     license="LGPL version 3 or later"
3225 elif enabled gpl; then
3226     license="GPL version 2 or later"
3227 fi
3228
3229 echo "License: $license"
3230
3231 echo "Creating config.mak and config.h..."
3232
3233 # build tree in object directory if source path is different from current one
3234 if enabled source_path_used; then
3235     DIRS="
3236         doc
3237         libavcodec
3238         libavcodec/$arch
3239         libavdevice
3240         libavfilter
3241         libavfilter/$arch
3242         libavfilter/libmpcodecs
3243         libavfilter/libmpcodecs/libvo
3244         libavformat
3245         libavutil
3246         libavutil/$arch
3247         libpostproc
3248         libswscale
3249         libswscale/$arch
3250         tests
3251         tools
3252     "
3253     FILES="
3254         Makefile
3255         common.mak
3256         subdir.mak
3257         doc/texi2pod.pl
3258         libavcodec/Makefile
3259         libavcodec/${arch}/Makefile
3260         libavdevice/Makefile
3261         libavfilter/Makefile
3262         libavfilter/${arch}/Makefile
3263         libavformat/Makefile
3264         libavutil/Makefile
3265         libpostproc/Makefile
3266         libswscale/Makefile
3267     "
3268     map 'mkdir -p $v' $DIRS;
3269     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3270 fi
3271
3272 enabled stripping || strip="echo skipping strip"
3273
3274 config_files="$TMPH config.mak"
3275
3276 cat > config.mak <<EOF
3277 # Automatically generated by configure - do not modify!
3278 ifndef FFMPEG_CONFIG_MAK
3279 FFMPEG_CONFIG_MAK=1
3280 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3281 prefix=$prefix
3282 LIBDIR=\$(DESTDIR)$libdir
3283 SHLIBDIR=\$(DESTDIR)$shlibdir
3284 INCDIR=\$(DESTDIR)$incdir
3285 BINDIR=\$(DESTDIR)$bindir
3286 DATADIR=\$(DESTDIR)$datadir
3287 MANDIR=\$(DESTDIR)$mandir
3288 SRC_PATH="$source_path"
3289 SRC_PATH_BARE=$source_path
3290 BUILD_ROOT="$PWD"
3291 CC_IDENT=$cc_ident
3292 ARCH=$arch
3293 CC=$cc
3294 AS=$as
3295 LD=$ld
3296 DEPCC=$dep_cc
3297 YASM=$yasmexe
3298 YASMDEP=$yasmexe
3299 AR=$ar
3300 RANLIB=$ranlib
3301 CP=cp -p
3302 LN_S=$ln_s
3303 STRIP=$strip
3304 CPPFLAGS=$CPPFLAGS
3305 CFLAGS=$CFLAGS
3306 ASFLAGS=$ASFLAGS
3307 CC_O=$CC_O
3308 LDFLAGS=$LDFLAGS
3309 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3310 SHFLAGS=$SHFLAGS
3311 YASMFLAGS=$YASMFLAGS
3312 BUILDSUF=$build_suffix
3313 FULLNAME=$FULLNAME
3314 LIBPREF=$LIBPREF
3315 LIBSUF=$LIBSUF
3316 LIBNAME=$LIBNAME
3317 SLIBPREF=$SLIBPREF
3318 SLIBSUF=$SLIBSUF
3319 EXESUF=$EXESUF
3320 EXTRA_VERSION=$extra_version
3321 DEPFLAGS=$DEPFLAGS
3322 CCDEP=$CCDEP
3323 ASDEP=$ASDEP
3324 CC_DEPFLAGS=$CC_DEPFLAGS
3325 AS_DEPFLAGS=$AS_DEPFLAGS
3326 HOSTCC=$host_cc
3327 HOSTCFLAGS=$host_cflags
3328 HOSTEXESUF=$HOSTEXESUF
3329 HOSTLDFLAGS=$host_ldflags
3330 HOSTLIBS=$host_libs
3331 TARGET_EXEC=$target_exec
3332 TARGET_PATH=$target_path
3333 SDL_LIBS=$sdl_libs
3334 SDL_CFLAGS=$sdl_cflags
3335 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3336 EXTRALIBS=$extralibs
3337 INSTALL=install
3338 LIBTARGET=${LIBTARGET}
3339 SLIBNAME=${SLIBNAME}
3340 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3341 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3342 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3343 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3344 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3345 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3346 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3347 EOF
3348
3349 get_version(){
3350     name=$1
3351     file=$source_path/$2
3352     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3353     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3354     lcname=$(tolower $name)
3355     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3356     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3357 }
3358
3359 get_version LIBSWSCALE  libswscale/swscale.h
3360 get_version LIBPOSTPROC libpostproc/postprocess.h
3361 get_version LIBAVCODEC  libavcodec/version.h
3362 get_version LIBAVDEVICE libavdevice/avdevice.h
3363 get_version LIBAVFORMAT libavformat/version.h
3364 get_version LIBAVUTIL   libavutil/avutil.h
3365 get_version LIBAVFILTER libavfilter/avfilter.h
3366
3367 cat > $TMPH <<EOF
3368 /* Automatically generated by configure - do not modify! */
3369 #ifndef FFMPEG_CONFIG_H
3370 #define FFMPEG_CONFIG_H
3371 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3372 #define FFMPEG_LICENSE "$(c_escape $license)"
3373 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3374 #define CC_TYPE "$cc_type"
3375 #define CC_VERSION $cc_version
3376 #define restrict $_restrict
3377 #define EXTERN_PREFIX "${extern_prefix}"
3378 #define EXTERN_ASM ${extern_prefix}
3379 #define SLIBSUF "$SLIBSUF"
3380 EOF
3381
3382 test -n "$malloc_prefix" &&
3383     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3384
3385 if enabled small || disabled optimizations; then
3386     echo "#undef  av_always_inline"  >> $TMPH
3387     if enabled small; then
3388         echo "#define av_always_inline inline"  >> $TMPH
3389     else
3390         echo "#define av_always_inline av_unused"  >> $TMPH
3391     fi
3392 fi
3393
3394 if enabled yasm; then
3395     append config_files $TMPASM
3396     printf '' >$TMPASM
3397 fi
3398
3399 print_config ARCH_   "$config_files" $ARCH_LIST
3400 print_config HAVE_   "$config_files" $HAVE_LIST
3401 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3402                                      $CONFIG_EXTRA      \
3403                                      $DECODER_LIST      \
3404                                      $ENCODER_LIST      \
3405                                      $HWACCEL_LIST      \
3406                                      $PARSER_LIST       \
3407                                      $BSF_LIST          \
3408                                      $DEMUXER_LIST      \
3409                                      $MUXER_LIST        \
3410                                      $FILTER_LIST       \
3411                                      $PROTOCOL_LIST     \
3412                                      $INDEV_LIST        \
3413                                      $OUTDEV_LIST       \
3414
3415 cat >>config.mak <<EOF
3416 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3417 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3418 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3419 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3420 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3421 EOF
3422
3423 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3424 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3425
3426 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3427 cp_if_changed $TMPH config.h
3428 touch .config
3429
3430 enabled yasm && cp_if_changed $TMPASM config.asm
3431
3432 cat > $TMPH <<EOF
3433 /* Generated by ffconf */
3434 #ifndef AVUTIL_AVCONFIG_H
3435 #define AVUTIL_AVCONFIG_H
3436 EOF
3437
3438 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3439
3440 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3441
3442 cp_if_changed $TMPH libavutil/avconfig.h
3443
3444 test -n "$WARNINGS" && printf "\n$WARNINGS"
3445
3446 # build pkg-config files
3447
3448 pkgconfig_generate(){
3449 name=$1
3450 shortname=${name#lib}${build_suffix}
3451 comment=$2
3452 version=$3
3453 libs=$4
3454 requires=$5
3455 enabled ${name#lib} || return 0
3456 cat <<EOF > $name/$name.pc
3457 prefix=$prefix
3458 exec_prefix=\${prefix}
3459 libdir=$libdir
3460 includedir=$incdir
3461
3462 Name: $name
3463 Description: $comment
3464 Version: $version
3465 Requires: $(enabled shared || echo $requires)
3466 Requires.private: $(enabled shared && echo $requires)
3467 Conflicts:
3468 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3469 Libs.private: $(enabled shared && echo $libs)
3470 Cflags: -I\${includedir}
3471 EOF
3472 cat <<EOF > $name/$name-uninstalled.pc
3473 prefix=
3474 exec_prefix=
3475 libdir=\${pcfiledir}
3476 includedir=${source_path}
3477
3478 Name: $name
3479 Description: $comment
3480 Version: $version
3481 Requires: $requires
3482 Conflicts:
3483 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3484 Cflags: -I\${includedir}
3485 EOF
3486 }
3487
3488 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3489 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3490 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3491 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3492 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3493 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3494 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"