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-swresample     disable libswresample build
  91   --disable-swscale        disable libswscale build
  92   --disable-postproc       disable libpostproc build
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --disable-w32threads     disable Win32 threads [auto]
  96   --disable-os2threads     disable OS/2 threads [auto]
  97   --enable-x11grab         enable X11 grabbing [no]
  98   --disable-network        disable network support [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-huffman        disable Huffman code
 108   --disable-lpc            disable LPC code
 109   --disable-mdct           disable MDCT code
 110   --disable-rdft           disable RDFT code
 111   --enable-vaapi           enable VAAPI code [autodetect]
 112   --enable-vda             enable VDA code [autodetect]
 113   --enable-vdpau           enable VDPAU code [autodetect]
 114   --disable-dxva2          disable DXVA2 code
 115   --disable-vda            disable VDA code
 116   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 117   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 118   --disable-safe-bitstream-reader
 119                            disable buffer boundary checking in bitreaders
 120                            (faster, but may crash)
 121   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 122   --disable-everything     disable all components listed below
 123   --disable-encoder=NAME   disable encoder NAME
 124   --enable-encoder=NAME    enable encoder NAME
 125   --disable-encoders       disable all encoders
 126   --disable-decoder=NAME   disable decoder NAME
 127   --enable-decoder=NAME    enable decoder NAME
 128   --disable-decoders       disable all decoders
 129   --disable-hwaccel=NAME   disable hwaccel NAME
 130   --enable-hwaccel=NAME    enable hwaccel NAME
 131   --disable-hwaccels       disable all hwaccels
 132   --disable-muxer=NAME     disable muxer NAME
 133   --enable-muxer=NAME      enable muxer NAME
 134   --disable-muxers         disable all muxers
 135   --disable-demuxer=NAME   disable demuxer NAME
 136   --enable-demuxer=NAME    enable demuxer NAME
 137   --disable-demuxers       disable all demuxers
 138   --enable-parser=NAME     enable parser NAME
 139   --disable-parser=NAME    disable parser NAME
 140   --disable-parsers        disable all parsers
 141   --enable-bsf=NAME        enable bitstream filter NAME
 142   --disable-bsf=NAME       disable bitstream filter NAME
 143   --disable-bsfs           disable all bitstream filters
 144   --enable-protocol=NAME   enable protocol NAME
 145   --disable-protocol=NAME  disable protocol NAME
 146   --disable-protocols      disable all protocols
 147   --disable-indev=NAME     disable input device NAME
 148   --disable-outdev=NAME    disable output device NAME
 149   --disable-indevs         disable input devices
 150   --disable-outdevs        disable output devices
 151   --disable-devices        disable all devices
 152   --enable-filter=NAME     enable filter NAME
 153   --disable-filter=NAME    disable filter NAME
 154   --disable-filters        disable all filters
 155   --list-decoders          show all available decoders
 156   --list-encoders          show all available encoders
 157   --list-hwaccels          show all available hardware accelerators
 158   --list-muxers            show all available muxers
 159   --list-demuxers          show all available demuxers
 160   --list-parsers           show all available parsers
 161   --list-protocols         show all available protocols
 162   --list-bsfs              show all available bitstream filters
 163   --list-indevs            show all available input devices
 164   --list-outdevs           show all available output devices
 165   --list-filters           show all available filters
 166
 167 External library support:
 168   --enable-avisynth        enable reading of AVISynth script files [no]
 169   --enable-bzlib           enable bzlib [autodetect]
 170   --enable-frei0r          enable frei0r video filtering
 171   --enable-gnutls          enable gnutls [no]
 172   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 173   --enable-libass          enable libass subtitles rendering [no]
 174   --enable-libcelt         enable CELT decoding via libcelt [no]
 175   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 176   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 177   --enable-libopencv       enable video filtering via libopencv [no]
 178   --enable-libcdio         enable audio CD grabbing with libcdio
 179   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 180                            and libraw1394 [no]
 181   --enable-libdirac        enable Dirac support via libdirac [no]
 182   --enable-libfaac         enable FAAC support via libfaac [no]
 183   --enable-libfreetype     enable libfreetype [no]
 184   --enable-libgsm          enable GSM support via libgsm [no]
 185   --enable-libmodplug      enable ModPlug via libmodplug [no]
 186   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 187   --enable-libnut          enable NUT (de)muxing via libnut,
 188                            native (de)muxer exists [no]
 189   --enable-libopenjpeg     enable JPEG 2000 encoding/decoding via OpenJPEG [no]
 190   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 191   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 192   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 193   --enable-libspeex        enable Speex support via libspeex [no]
 194   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 195   --enable-libtheora       enable Theora encoding via libtheora [no]
 196   --enable-libutvideo      enable Ut Video decoding via libutvideo [no]
 197   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 198   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 199   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 200   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 201                            native implementation exists [no]
 202   --enable-libvpx          enable VP8 support via libvpx [no]
 203   --enable-libx264         enable H.264 encoding via x264 [no]
 204   --enable-libxavs         enable AVS encoding via xavs [no]
 205   --enable-libxvid         enable Xvid encoding via xvidcore,
 206                            native MPEG-4/Xvid encoder exists [no]
 207   --enable-openal          enable OpenAL 1.1 capture support [no]
 208   --enable-openssl         enable openssl [no]
 209   --enable-zlib            enable zlib [autodetect]
 210
 211 Advanced options (experts only):
 212   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 213   --enable-cross-compile   assume a cross-compiler is used
 214   --sysroot=PATH           root of cross-build tree
 215   --sysinclude=PATH        location of cross-build system headers
 216   --target-os=OS           compiler targets OS [$target_os]
 217   --target-exec=CMD        command to run executables on target
 218   --target-path=DIR        path to view of build directory on target
 219   --nm=NM                  use nm tool NM [$nm_default]
 220   --ar=AR                  use archive tool AR [$ar_default]
 221   --as=AS                  use assembler AS [$as_default]
 222   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 223   --cc=CC                  use C compiler CC [$cc_default]
 224   --cxx=CXX                use C compiler CXX [$cxx_default]
 225   --ld=LD                  use linker LD [$ld_default]
 226   --host-cc=HOSTCC         use host C compiler HOSTCC
 227   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 228   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 229   --host-libs=HLIBS        use libs HLIBS when linking for host
 230   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 231   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 232   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 233   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 234   --extra-version=STRING   version string suffix []
 235   --build-suffix=SUFFIX    library name suffix []
 236   --progs-suffix=SUFFIX    program name suffix []
 237   --arch=ARCH              select architecture [$arch]
 238   --cpu=CPU                select the minimum required CPU (affects
 239                            instruction selection, may crash on older CPUs)
 240   --disable-asm            disable all assembler optimizations
 241   --disable-altivec        disable AltiVec optimizations
 242   --disable-amd3dnow       disable 3DNow! optimizations
 243   --disable-amd3dnowext    disable 3DNow! extended optimizations
 244   --disable-mmx            disable MMX optimizations
 245   --disable-mmx2           disable MMX2 optimizations
 246   --disable-sse            disable SSE optimizations
 247   --disable-ssse3          disable SSSE3 optimizations
 248   --disable-avx            disable AVX optimizations
 249   --disable-armv5te        disable armv5te optimizations
 250   --disable-armv6          disable armv6 optimizations
 251   --disable-armv6t2        disable armv6t2 optimizations
 252   --disable-armvfp         disable ARM VFP optimizations
 253   --disable-iwmmxt         disable iwmmxt optimizations
 254   --disable-mmi            disable MMI optimizations
 255   --disable-neon           disable NEON optimizations
 256   --disable-vis            disable VIS optimizations
 257   --disable-yasm           disable use of yasm assembler
 258   --enable-pic             build position-independent code
 259   --malloc-prefix=PFX      prefix malloc and related names with PFX
 260   --enable-sram            allow use of on-chip SRAM
 261   --disable-symver         disable symbol versioning
 262   --optflags               override optimization-related compiler flags
 263   --postproc-version=V     build libpostproc version V.
 264                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
 265
 266 Developer options (useful when working on FFmpeg itself):
 267   --enable-coverage        build with test coverage instrumentation
 268   --disable-debug          disable debugging symbols
 269   --enable-debug=LEVEL     set the debug level [$debuglevel]
 270   --disable-optimizations  disable compiler optimizations
 271   --enable-extra-warnings  enable more compiler warnings
 272   --disable-stripping      disable stripping of executables and shared libraries
 273   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 274                            leaks and errors, using the specified valgrind binary.
 275                            Cannot be combined with --target-exec
 276   --samples=PATH           location of test samples for FATE, if not set use
 277                            \$FATE_SAMPLES at make invocation time.
 278   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 279                            should be used only for debugging purposes)
 280
 281 NOTE: Object files are built at the place where configure is launched.
 282 EOF
 283   exit 0
 284 }
 285
 286 quotes='""'
 287
 288 log(){
 289     echo "$@" >> $logfile
 290 }
 291
 292 log_file(){
 293     log BEGIN $1
 294     pr -n -t $1 >> $logfile
 295     log END $1
 296 }
 297
 298 echolog(){
 299     log "$@"
 300     echo "$@"
 301 }
 302
 303 warn(){
 304     log "WARNING: $*"
 305     WARNINGS="${WARNINGS}WARNING: $*\n"
 306 }
 307
 308 die(){
 309     echolog "$@"
 310     cat <<EOF
 311
 312 If you think configure made a mistake, make sure you are using the latest
 313 version from Git.  If the latest version fails, report the problem to the
 314 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 315 EOF
 316     if disabled logging; then
 317         cat <<EOF
 318 Rerun configure with logging enabled (do not use --disable-logging), and
 319 include the log this produces with your report.
 320 EOF
 321     else
 322 cat <<EOF
 323 Include the log file "$logfile" produced by configure as this will help
 324 solving the problem.
 325 EOF
 326     fi
 327     exit 1
 328 }
 329
 330 # Avoid locale weirdness, besides we really just want to translate ASCII.
 331 toupper(){
 332     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 333 }
 334
 335 tolower(){
 336     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 337 }
 338
 339 c_escape(){
 340     echo "$*" | sed 's/["\\]/\\\0/g'
 341 }
 342
 343 sh_quote(){
 344     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 345     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 346     echo "$v"
 347 }
 348
 349 cleanws(){
 350     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 351 }
 352
 353 filter(){
 354     pat=$1
 355     shift
 356     for v; do
 357         eval "case $v in $pat) echo $v ;; esac"
 358     done
 359 }
 360
 361 filter_out(){
 362     pat=$1
 363     shift
 364     for v; do
 365         eval "case $v in $pat) ;; *) echo $v ;; esac"
 366     done
 367 }
 368
 369 map(){
 370     m=$1
 371     shift
 372     for v; do eval $m; done
 373 }
 374
 375 set_all(){
 376     value=$1
 377     shift
 378     for var in $*; do
 379         eval $var=$value
 380     done
 381 }
 382
 383 set_weak(){
 384     value=$1
 385     shift
 386     for var; do
 387         eval : \${$var:=$value}
 388     done
 389 }
 390
 391 set_safe(){
 392     var=$1
 393     shift
 394     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 395 }
 396
 397 get_safe(){
 398     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 399 }
 400
 401 pushvar(){
 402     for var in $*; do
 403         eval level=\${${var}_level:=0}
 404         eval ${var}_${level}="\$$var"
 405         eval ${var}_level=$(($level+1))
 406     done
 407 }
 408
 409 popvar(){
 410     for var in $*; do
 411         eval level=\${${var}_level:-0}
 412         test $level = 0 && continue
 413         eval level=$(($level-1))
 414         eval $var="\${${var}_${level}}"
 415         eval ${var}_level=$level
 416         eval unset ${var}_${level}
 417     done
 418 }
 419
 420 enable(){
 421     set_all yes $*
 422 }
 423
 424 disable(){
 425     set_all no $*
 426 }
 427
 428 enable_weak(){
 429     set_weak yes $*
 430 }
 431
 432 disable_weak(){
 433     set_weak no $*
 434 }
 435
 436 enable_safe(){
 437     for var; do
 438         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 439     done
 440 }
 441
 442 disable_safe(){
 443     for var; do
 444         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 445     done
 446 }
 447
 448 do_enable_deep(){
 449     for var; do
 450         enabled $var && continue
 451         eval sel="\$${var}_select"
 452         eval sgs="\$${var}_suggest"
 453         pushvar var sgs
 454         enable_deep $sel
 455         popvar sgs
 456         enable_deep_weak $sgs
 457         popvar var
 458     done
 459 }
 460
 461 enable_deep(){
 462     do_enable_deep $*
 463     enable $*
 464 }
 465
 466 enable_deep_weak(){
 467     do_enable_deep $*
 468     enable_weak $*
 469 }
 470
 471 enabled(){
 472     test "${1#!}" = "$1" && op== || op=!=
 473     eval test "x\$${1#!}" $op "xyes"
 474 }
 475
 476 disabled(){
 477     test "${1#!}" = "$1" && op== || op=!=
 478     eval test "x\$${1#!}" $op "xno"
 479 }
 480
 481 enabled_all(){
 482     for opt; do
 483         enabled $opt || return 1
 484     done
 485 }
 486
 487 disabled_all(){
 488     for opt; do
 489         disabled $opt || return 1
 490     done
 491 }
 492
 493 enabled_any(){
 494     for opt; do
 495         enabled $opt && return 0
 496     done
 497 }
 498
 499 disabled_any(){
 500     for opt; do
 501         disabled $opt && return 0
 502     done
 503     return 1
 504 }
 505
 506 set_default(){
 507     for opt; do
 508         eval : \${$opt:=\$${opt}_default}
 509     done
 510 }
 511
 512 is_in(){
 513     value=$1
 514     shift
 515     for var in $*; do
 516         [ $var = $value ] && return 0
 517     done
 518     return 1
 519 }
 520
 521 check_deps(){
 522     for cfg; do
 523         cfg="${cfg#!}"
 524         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 525         disabled ${cfg}_checking && continue
 526         enable ${cfg}_checking
 527
 528         eval dep_all="\$${cfg}_deps"
 529         eval dep_any="\$${cfg}_deps_any"
 530         eval dep_sel="\$${cfg}_select"
 531         eval dep_sgs="\$${cfg}_suggest"
 532         eval dep_ifa="\$${cfg}_if"
 533         eval dep_ifn="\$${cfg}_if_any"
 534
 535         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 536         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 537         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 538
 539         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 540         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 541         enabled_all  $dep_all || disable $cfg
 542         enabled_any  $dep_any || disable $cfg
 543         disabled_any $dep_sel && disable $cfg
 544
 545         if enabled $cfg; then
 546             eval dep_extralibs="\$${cfg}_extralibs"
 547             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 548             enable_deep $dep_sel
 549             enable_deep_weak $dep_sgs
 550         fi
 551
 552         disable ${cfg}_checking
 553     done
 554 }
 555
 556 print_config_h(){
 557     enabled $1 && v=1 || v=0
 558     echo "#define $2 $v"
 559 }
 560
 561 print_config_mak(){
 562     enabled $1 && v= || v=!
 563     echo "$v$2=yes"
 564 }
 565
 566 print_config_asm(){
 567     enabled $1 && v=1 || v=0
 568     echo "%define $2 $v"
 569 }
 570
 571 print_config(){
 572     pfx=$1
 573     files=$2
 574     shift 2
 575     for cfg; do
 576         ucname="$(toupper $cfg)"
 577         for f in $files; do
 578             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 579         done
 580     done
 581 }
 582
 583 print_enabled(){
 584     test "$1" = -n && end=" " && shift || end="\n"
 585     suf=$1
 586     shift
 587     for v; do
 588         enabled $v && printf "%s$end" ${v%$suf};
 589     done
 590 }
 591
 592 append(){
 593     var=$1
 594     shift
 595     eval "$var=\"\$$var $*\""
 596 }
 597
 598 prepend(){
 599     var=$1
 600     shift
 601     eval "$var=\"$* \$$var\""
 602 }
 603
 604 add_cppflags(){
 605     append CPPFLAGS $($filter_cppflags "$@")
 606 }
 607
 608 add_cflags(){
 609     append CFLAGS $($filter_cflags "$@")
 610 }
 611
 612 add_cxxflags(){
 613     append CXXFLAGS $($filter_cflags "$@")
 614 }
 615
 616 add_asflags(){
 617     append ASFLAGS $($filter_asflags "$@")
 618 }
 619
 620 add_ldflags(){
 621     append LDFLAGS "$@"
 622 }
 623
 624 add_extralibs(){
 625     prepend extralibs "$@"
 626 }
 627
 628 check_cmd(){
 629     log "$@"
 630     "$@" >> $logfile 2>&1
 631 }
 632
 633 check_cc(){
 634     log check_cc "$@"
 635     cat > $TMPC
 636     log_file $TMPC
 637     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 638 }
 639
 640 check_cxx(){
 641     log check_cxx "$@"
 642     cat > $TMPCPP
 643     log_file $TMPCPP
 644     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
 645 }
 646
 647 check_cpp(){
 648     log check_cpp "$@"
 649     cat > $TMPC
 650     log_file $TMPC
 651     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 652 }
 653
 654 check_as(){
 655     log check_as "$@"
 656     cat > $TMPC
 657     log_file $TMPC
 658     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 659 }
 660
 661 check_asm(){
 662     log check_asm "$@"
 663     name="$1"
 664     code="$2"
 665     shift 2
 666     disable $name
 667     check_as "$@" <<EOF && enable $name
 668 void foo(void){ __asm__ volatile($code); }
 669 EOF
 670 }
 671
 672 check_yasm(){
 673     log check_yasm "$@"
 674     echo "$1" > $TMPS
 675     log_file $TMPS
 676     shift 1
 677     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 678 }
 679
 680 check_ld(){
 681     log check_ld "$@"
 682     type=$1
 683     shift 1
 684     flags=''
 685     libs=''
 686     for f; do
 687         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 688     done
 689     check_$type $($filter_cflags $flags) || return
 690     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 691 }
 692
 693 check_cppflags(){
 694     log check_cppflags "$@"
 695     set -- $($filter_cppflags "$@")
 696     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 697 int x;
 698 EOF
 699 }
 700
 701 check_cflags(){
 702     log check_cflags "$@"
 703     set -- $($filter_cflags "$@")
 704     check_cc "$@" <<EOF && append CFLAGS "$@"
 705 int x;
 706 EOF
 707 }
 708
 709 check_cxxflags(){
 710     log check_cxxflags "$@"
 711     set -- $($filter_cflags "$@")
 712     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 713 int x;
 714 EOF
 715 }
 716
 717 test_ldflags(){
 718     log test_ldflags "$@"
 719     check_ld "cc" "$@" <<EOF
 720 int main(void){ return 0; }
 721 EOF
 722 }
 723
 724 check_ldflags(){
 725     log check_ldflags "$@"
 726     test_ldflags "$@" && add_ldflags "$@"
 727 }
 728
 729 check_header(){
 730     log check_header "$@"
 731     header=$1
 732     shift
 733     disable_safe $header
 734     check_cpp "$@" <<EOF && enable_safe $header
 735 #include <$header>
 736 int x;
 737 EOF
 738 }
 739
 740 check_func(){
 741     log check_func "$@"
 742     func=$1
 743     shift
 744     disable $func
 745     check_ld "cc" "$@" <<EOF && enable $func
 746 extern int $func();
 747 int main(void){ $func(); }
 748 EOF
 749 }
 750
 751 check_mathfunc(){
 752     log check_mathfunc "$@"
 753     func=$1
 754     shift
 755     disable $func
 756     check_ld "cc" "$@" <<EOF && enable $func
 757 #include <math.h>
 758 float foo(float f) { return $func(f); }
 759 int main(void){ return (int) foo; }
 760 EOF
 761 }
 762
 763 check_func_headers(){
 764     log check_func_headers "$@"
 765     headers=$1
 766     funcs=$2
 767     shift 2
 768     {
 769         for hdr in $headers; do
 770             echo "#include <$hdr>"
 771         done
 772         for func in $funcs; do
 773             echo "long check_$func(void) { return (long) $func; }"
 774         done
 775         echo "int main(void) { return 0; }"
 776     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 777 }
 778
 779 check_class_headers_cpp(){
 780     log check_class_headers_cpp "$@"
 781     headers=$1
 782     classes=$2
 783     shift 2
 784     {
 785         for hdr in $headers; do
 786             echo "#include <$hdr>"
 787         done
 788         echo "int main(void) { "
 789         i=1
 790         for class in $classes; do
 791             echo "$class obj$i;"
 792             i=$(expr $i + 1)
 793         done
 794         echo "return 0; }"
 795     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 796 }
 797
 798 check_cpp_condition(){
 799     log check_cpp_condition "$@"
 800     header=$1
 801     condition=$2
 802     shift 2
 803     check_cpp $($filter_cppflags "$@") <<EOF
 804 #include <$header>
 805 #if !($condition)
 806 #error "unsatisfied condition: $condition"
 807 #endif
 808 EOF
 809 }
 810
 811 check_lib(){
 812     log check_lib "$@"
 813     header="$1"
 814     func="$2"
 815     shift 2
 816     check_header $header && check_func $func "$@" && add_extralibs "$@"
 817 }
 818
 819 check_lib2(){
 820     log check_lib2 "$@"
 821     headers="$1"
 822     funcs="$2"
 823     shift 2
 824     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 825 }
 826
 827 check_lib_cpp(){
 828     log check_lib_cpp "$@"
 829     headers="$1"
 830     classes="$2"
 831     shift 2
 832     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 833 }
 834
 835 check_pkg_config(){
 836     log check_pkg_config "$@"
 837     pkg="$1"
 838     headers="$2"
 839     funcs="$3"
 840     shift 3
 841     $pkg_config --exists $pkg 2>/dev/null || return
 842     pkg_cflags=$($pkg_config --cflags $pkg)
 843     pkg_libs=$($pkg_config --libs $pkg)
 844     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 845         set_safe ${pkg}_cflags $pkg_cflags   &&
 846         set_safe ${pkg}_libs   $pkg_libs
 847 }
 848
 849 check_exec(){
 850     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 851 }
 852
 853 check_exec_crash(){
 854     code=$(cat)
 855
 856     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 857     # are safe but may not be available everywhere.  Thus we use
 858     # raise(SIGTERM) instead.  The check is run in a subshell so we
 859     # can redirect the "Terminated" message from the shell.  SIGBUS
 860     # is not defined by standard C so it is used conditionally.
 861
 862     (check_exec "$@") >> $logfile 2>&1 <<EOF
 863 #include <signal.h>
 864 static void sighandler(int sig){
 865     raise(SIGTERM);
 866 }
 867 int func(void){
 868     $code
 869 }
 870 int (*func_ptr)(void) = func;
 871 int main(void){
 872     signal(SIGILL, sighandler);
 873     signal(SIGFPE, sighandler);
 874     signal(SIGSEGV, sighandler);
 875 #ifdef SIGBUS
 876     signal(SIGBUS, sighandler);
 877 #endif
 878     return func_ptr();
 879 }
 880 EOF
 881 }
 882
 883 check_type(){
 884     log check_type "$@"
 885     headers=$1
 886     type=$2
 887     shift 2
 888     disable_safe "$type"
 889     incs=""
 890     for hdr in $headers; do
 891         incs="$incs
 892 #include <$hdr>"
 893     done
 894     check_cc "$@" <<EOF && enable_safe "$type"
 895 $incs
 896 $type v;
 897 EOF
 898 }
 899
 900 check_struct(){
 901     log check_type "$@"
 902     headers=$1
 903     struct=$2
 904     member=$3
 905     shift 3
 906     disable_safe "${struct}_${member}"
 907     incs=""
 908     for hdr in $headers; do
 909         incs="$incs
 910 #include <$hdr>"
 911     done
 912     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 913 $incs
 914 const void *p = &(($struct *)0)->$member;
 915 EOF
 916 }
 917
 918 require(){
 919     name="$1"
 920     header="$2"
 921     func="$3"
 922     shift 3
 923     check_lib $header $func "$@" || die "ERROR: $name not found"
 924 }
 925
 926 require2(){
 927     name="$1"
 928     headers="$2"
 929     func="$3"
 930     shift 3
 931     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 932 }
 933
 934 require_cpp(){
 935     name="$1"
 936     headers="$2"
 937     classes="$3"
 938     shift 3
 939     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
 940 }
 941
 942 require_pkg_config(){
 943     pkg="$1"
 944     check_pkg_config "$@" || die "ERROR: $pkg not found"
 945     add_cflags    $(get_safe ${pkg}_cflags)
 946     add_extralibs $(get_safe ${pkg}_libs)
 947 }
 948
 949 check_host_cc(){
 950     log check_host_cc "$@"
 951     cat > $TMPC
 952     log_file $TMPC
 953     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 954 }
 955
 956 check_host_cflags(){
 957     log check_host_cflags "$@"
 958     check_host_cc "$@" <<EOF && append host_cflags "$@"
 959 int x;
 960 EOF
 961 }
 962
 963 apply(){
 964     file=$1
 965     shift
 966     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 967 }
 968
 969 cp_if_changed(){
 970     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 971     mkdir -p "$(dirname $2)"
 972     cp -f "$1" "$2"
 973 }
 974
 975 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 976 # system-dependent things.
 977
 978 COMPONENT_LIST="
 979     bsfs
 980     decoders
 981     demuxers
 982     encoders
 983     filters
 984     hwaccels
 985     indevs
 986     muxers
 987     outdevs
 988     parsers
 989     protocols
 990 "
 991
 992 PROGRAM_LIST="
 993     ffplay
 994     ffprobe
 995     ffserver
 996     ffmpeg
 997 "
 998
 999 CONFIG_LIST="
1000     $COMPONENT_LIST
1001     $PROGRAM_LIST
1002     avplay
1003     avprobe
1004     avserver
1005     aandct
1006     ac3dsp
1007     avcodec
1008     avdevice
1009     avfilter
1010     avformat
1011     avisynth
1012     bzlib
1013     crystalhd
1014     dct
1015     doc
1016     dwt
1017     dxva2
1018     fastdiv
1019     fft
1020     frei0r
1021     gnutls
1022     golomb
1023     gpl
1024     gray
1025     h264chroma
1026     h264dsp
1027     h264pred
1028     hardcoded_tables
1029     huffman
1030     libaacplus
1031     libass
1032     libcdio
1033     libcelt
1034     libdc1394
1035     libdirac
1036     libfaac
1037     libfreetype
1038     libgsm
1039     libmodplug
1040     libmp3lame
1041     libnut
1042     libopencore_amrnb
1043     libopencore_amrwb
1044     libopencv
1045     libopenjpeg
1046     libpulse
1047     librtmp
1048     libschroedinger
1049     libspeex
1050     libstagefright_h264
1051     libtheora
1052     libutvideo
1053     libv4l2
1054     libvo_aacenc
1055     libvo_amrwbenc
1056     libvorbis
1057     libvpx
1058     libx264
1059     libxavs
1060     libxvid
1061     lpc
1062     lsp
1063     mdct
1064     memalign_hack
1065     mpegaudiodsp
1066     network
1067     nonfree
1068     openal
1069     openssl
1070     pic
1071     postproc
1072     rdft
1073     rtpdec
1074     runtime_cpudetect
1075     safe_bitstream_reader
1076     shared
1077     sinewin
1078     small
1079     sram
1080     static
1081     swresample
1082     swscale
1083     swscale_alpha
1084     thumb
1085     vaapi
1086     vda
1087     vdpau
1088     version3
1089     xmm_clobber_test
1090     x11grab
1091     zlib
1092 "
1093
1094 THREADS_LIST='
1095     pthreads
1096     w32threads
1097     os2threads
1098 '
1099
1100 ARCH_LIST='
1101     alpha
1102     arm
1103     avr32
1104     avr32_ap
1105     avr32_uc
1106     bfin
1107     ia64
1108     m68k
1109     mips
1110     mips64
1111     parisc
1112     ppc
1113     ppc64
1114     s390
1115     sh4
1116     sparc
1117     sparc64
1118     tomi
1119     x86
1120     x86_32
1121     x86_64
1122 '
1123
1124 ARCH_EXT_LIST='
1125     altivec
1126     amd3dnow
1127     amd3dnowext
1128     armv5te
1129     armv6
1130     armv6t2
1131     armvfp
1132     avx
1133     iwmmxt
1134     mmi
1135     mmx
1136     mmx2
1137     neon
1138     ppc4xx
1139     sse
1140     ssse3
1141     vfpv3
1142     vis
1143 '
1144
1145 HAVE_LIST_PUB='
1146     bigendian
1147     fast_unaligned
1148 '
1149
1150 HAVE_LIST="
1151     $ARCH_EXT_LIST
1152     $HAVE_LIST_PUB
1153     $THREADS_LIST
1154     aligned_stack
1155     alsa_asoundlib_h
1156     altivec_h
1157     arpa_inet_h
1158     asm_mod_y
1159     asm_types_h
1160     attribute_may_alias
1161     attribute_packed
1162     cbrtf
1163     closesocket
1164     cmov
1165     dcbzl
1166     dev_bktr_ioctl_bt848_h
1167     dev_bktr_ioctl_meteor_h
1168     dev_ic_bt8xx_h
1169     dev_video_bktr_ioctl_bt848_h
1170     dev_video_meteor_ioctl_meteor_h
1171     dlfcn_h
1172     dlopen
1173     dos_paths
1174     ebp_available
1175     ebx_available
1176     exp2
1177     exp2f
1178     fast_64bit
1179     fast_clz
1180     fast_cmov
1181     fcntl
1182     fork
1183     getaddrinfo
1184     gethrtime
1185     GetProcessAffinityMask
1186     GetProcessMemoryInfo
1187     GetProcessTimes
1188     getrusage
1189     gnu_as
1190     ibm_asm
1191     inet_aton
1192     inline_asm
1193     isatty
1194     kbhit
1195     ldbrx
1196     libdc1394_1
1197     libdc1394_2
1198     llrint
1199     llrintf
1200     local_aligned_16
1201     local_aligned_8
1202     localtime_r
1203     log2
1204     log2f
1205     loongson
1206     lrint
1207     lrintf
1208     lzo1x_999_compress
1209     machine_ioctl_bt848_h
1210     machine_ioctl_meteor_h
1211     makeinfo
1212     malloc_h
1213     MapViewOfFile
1214     memalign
1215     mkstemp
1216     mmap
1217     PeekNamedPipe
1218     poll_h
1219     posix_memalign
1220     round
1221     roundf
1222     sched_getaffinity
1223     sdl
1224     sdl_video_size
1225     setmode
1226     setrlimit
1227     sndio_h
1228     socklen_t
1229     soundcard_h
1230     strerror_r
1231     strptime
1232     struct_addrinfo
1233     struct_ipv6_mreq
1234     struct_rusage_ru_maxrss
1235     struct_sockaddr_in6
1236     struct_sockaddr_sa_len
1237     struct_sockaddr_storage
1238     struct_v4l2_frmivalenum_discrete
1239     symver
1240     symver_asm_label
1241     symver_gnu_asm
1242     sysconf
1243     sysctl
1244     sys_mman_h
1245     sys_param_h
1246     sys_resource_h
1247     sys_select_h
1248     sys_soundcard_h
1249     sys_videoio_h
1250     termios_h
1251     threads
1252     trunc
1253     truncf
1254     vfp_args
1255     VirtualAlloc
1256     winsock2_h
1257     xform_asm
1258     xmm_clobbers
1259     yasm
1260 "
1261
1262 # options emitted with CONFIG_ prefix but not available on command line
1263 CONFIG_EXTRA="
1264     avutil
1265     gplv3
1266     lgplv3
1267 "
1268
1269 CMDLINE_SELECT="
1270     $ARCH_EXT_LIST
1271     $CONFIG_LIST
1272     $THREADS_LIST
1273     asm
1274     coverage
1275     cross_compile
1276     debug
1277     extra_warnings
1278     logging
1279     optimizations
1280     stripping
1281     symver
1282     yasm
1283 "
1284
1285 PATHS_LIST='
1286     bindir
1287     datadir
1288     incdir
1289     libdir
1290     mandir
1291     prefix
1292     shlibdir
1293 '
1294
1295 CMDLINE_SET="
1296     $PATHS_LIST
1297     ar
1298     arch
1299     as
1300     build_suffix
1301     cc
1302     cpu
1303     cross_prefix
1304     cxx
1305     dep_cc
1306     extra_version
1307     host_cc
1308     host_cflags
1309     host_ldflags
1310     host_libs
1311     host_os
1312     install
1313     ld
1314     logfile
1315     malloc_prefix
1316     nm
1317     optflags
1318     pkg_config
1319     postproc_version
1320     progs_suffix
1321     samples
1322     strip
1323     sysinclude
1324     sysroot
1325     target_exec
1326     target_os
1327     target_path
1328     valgrind
1329     yasmexe
1330 "
1331
1332 CMDLINE_APPEND="
1333     extra_cflags
1334     extra_cxxflags
1335 "
1336
1337 # code dependency declarations
1338
1339 # architecture extensions
1340
1341 armv5te_deps="arm"
1342 armv6_deps="arm"
1343 armv6t2_deps="arm"
1344 armvfp_deps="arm"
1345 iwmmxt_deps="arm"
1346 neon_deps="arm"
1347 vfpv3_deps="armvfp"
1348
1349 mmi_deps="mips"
1350
1351 altivec_deps="ppc"
1352 ppc4xx_deps="ppc"
1353
1354 vis_deps="sparc"
1355
1356 x86_64_suggest="cmov fast_cmov"
1357 amd3dnow_deps="mmx"
1358 amd3dnowext_deps="amd3dnow"
1359 mmx_deps="x86"
1360 mmx2_deps="mmx"
1361 sse_deps="mmx"
1362 ssse3_deps="sse"
1363 avx_deps="ssse3"
1364
1365 aligned_stack_if_any="ppc x86"
1366 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1367 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1368 fast_unaligned_if_any="armv6 ppc x86"
1369
1370 inline_asm_deps="!tms470"
1371 need_memalign="altivec neon sse"
1372
1373 symver_if_any="symver_asm_label symver_gnu_asm"
1374
1375 # subsystems
1376 dct_select="rdft"
1377 mdct_select="fft"
1378 rdft_select="fft"
1379 mpegaudiodsp_select="dct"
1380
1381 # decoders / encoders / hardware accelerators
1382 aac_decoder_select="mdct sinewin"
1383 aac_encoder_select="mdct sinewin"
1384 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1385 ac3_decoder_select="mdct ac3dsp ac3_parser"
1386 ac3_encoder_select="mdct ac3dsp"
1387 ac3_fixed_encoder_select="mdct ac3dsp"
1388 alac_encoder_select="lpc"
1389 amrnb_decoder_select="lsp"
1390 amrwb_decoder_select="lsp"
1391 atrac1_decoder_select="mdct sinewin"
1392 atrac3_decoder_select="mdct"
1393 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1394 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1395 cavs_decoder_select="golomb"
1396 cook_decoder_select="mdct sinewin"
1397 cscd_decoder_suggest="zlib"
1398 dca_decoder_select="mdct"
1399 dnxhd_encoder_select="aandct"
1400 dxa_decoder_select="zlib"
1401 eac3_decoder_select="ac3_decoder"
1402 eac3_encoder_select="mdct ac3dsp"
1403 eamad_decoder_select="aandct"
1404 eatgq_decoder_select="aandct"
1405 eatqi_decoder_select="aandct"
1406 ffv1_decoder_select="golomb"
1407 flac_decoder_select="golomb"
1408 flac_encoder_select="golomb lpc"
1409 flashsv_decoder_select="zlib"
1410 flashsv_encoder_select="zlib"
1411 flashsv2_encoder_select="zlib"
1412 flashsv2_decoder_select="zlib"
1413 flv_decoder_select="h263_decoder"
1414 flv_encoder_select="h263_encoder"
1415 fraps_decoder_select="huffman"
1416 h261_encoder_select="aandct"
1417 h263_decoder_select="h263_parser"
1418 h263_encoder_select="aandct"
1419 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1420 h263i_decoder_select="h263_decoder"
1421 h263p_encoder_select="h263_encoder"
1422 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1423 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1424 h264_dxva2_hwaccel_deps="dxva2api_h"
1425 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1426 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1427 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1428 h264_vda_hwaccel_select="vda h264_decoder"
1429 h264_vdpau_decoder_select="vdpau h264_decoder"
1430 imc_decoder_select="fft mdct sinewin"
1431 jpegls_decoder_select="golomb"
1432 jpegls_encoder_select="golomb"
1433 ljpeg_encoder_select="aandct"
1434 loco_decoder_select="golomb"
1435 mjpeg_encoder_select="aandct"
1436 mlp_decoder_select="mlp_parser"
1437 mp1_decoder_select="mpegaudiodsp"
1438 mp1float_decoder_select="mpegaudiodsp"
1439 mp2_decoder_select="mpegaudiodsp"
1440 mp2float_decoder_select="mpegaudiodsp"
1441 mp3_decoder_select="mpegaudiodsp"
1442 mp3adu_decoder_select="mpegaudiodsp"
1443 mp3adufloat_decoder_select="mpegaudiodsp"
1444 mp3float_decoder_select="mpegaudiodsp"
1445 mp3on4_decoder_select="mpegaudiodsp"
1446 mp3on4float_decoder_select="mpegaudiodsp"
1447 mpc7_decoder_select="mpegaudiodsp"
1448 mpc8_decoder_select="mpegaudiodsp"
1449 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1450 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1451 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1452 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1453 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1454 mpeg1video_encoder_select="aandct"
1455 mpeg2_crystalhd_decoder_select="crystalhd"
1456 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1457 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1458 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1459 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1460 mpeg2video_encoder_select="aandct"
1461 mpeg4_crystalhd_decoder_select="crystalhd"
1462 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1463 mpeg4_encoder_select="h263_encoder"
1464 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1465 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1466 msmpeg4_crystalhd_decoder_select="crystalhd"
1467 msmpeg4v1_decoder_select="h263_decoder"
1468 msmpeg4v1_encoder_select="h263_encoder"
1469 msmpeg4v2_decoder_select="h263_decoder"
1470 msmpeg4v2_encoder_select="h263_encoder"
1471 msmpeg4v3_decoder_select="h263_decoder"
1472 msmpeg4v3_encoder_select="h263_encoder"
1473 nellymoser_decoder_select="mdct sinewin"
1474 nellymoser_encoder_select="mdct sinewin"
1475 png_decoder_select="zlib"
1476 png_encoder_select="zlib"
1477 qcelp_decoder_select="lsp"
1478 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1479 ra_144_encoder_select="lpc"
1480 rv10_decoder_select="h263_decoder"
1481 rv10_encoder_select="h263_encoder"
1482 rv20_decoder_select="h263_decoder"
1483 rv20_encoder_select="h263_encoder"
1484 rv30_decoder_select="golomb h264chroma h264pred"
1485 rv40_decoder_select="golomb h264chroma h264pred"
1486 shorten_decoder_select="golomb"
1487 sipr_decoder_select="lsp"
1488 snow_decoder_select="dwt"
1489 snow_encoder_select="aandct dwt"
1490 sonic_decoder_select="golomb"
1491 sonic_encoder_select="golomb"
1492 sonic_ls_encoder_select="golomb"
1493 svq1_encoder_select="aandct"
1494 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1495 svq3_decoder_suggest="zlib"
1496 theora_decoder_select="vp3_decoder"
1497 tiff_decoder_suggest="zlib"
1498 tiff_encoder_suggest="zlib"
1499 truehd_decoder_select="mlp_decoder"
1500 tscc_decoder_select="zlib"
1501 twinvq_decoder_select="mdct lsp sinewin"
1502 vc1_crystalhd_decoder_select="crystalhd"
1503 vc1_decoder_select="h263_decoder h264chroma"
1504 vc1_dxva2_hwaccel_deps="dxva2api_h"
1505 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1506 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1507 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1508 vc1image_decoder_select="vc1_decoder"
1509 vorbis_decoder_select="mdct"
1510 vorbis_encoder_select="mdct"
1511 vp6_decoder_select="huffman"
1512 vp6a_decoder_select="vp6_decoder"
1513 vp6f_decoder_select="vp6_decoder"
1514 vp8_decoder_select="h264pred"
1515 wmapro_decoder_select="mdct sinewin"
1516 wmav1_decoder_select="mdct sinewin"
1517 wmav1_encoder_select="mdct sinewin"
1518 wmav2_decoder_select="mdct sinewin"
1519 wmav2_encoder_select="mdct sinewin"
1520 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1521 wmv1_decoder_select="h263_decoder"
1522 wmv1_encoder_select="h263_encoder"
1523 wmv2_decoder_select="h263_decoder"
1524 wmv2_encoder_select="h263_encoder"
1525 wmv3_decoder_select="vc1_decoder"
1526 wmv3_crystalhd_decoder_select="crystalhd"
1527 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1528 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1529 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1530 wmv3image_decoder_select="wmv3_decoder"
1531 zlib_decoder_select="zlib"
1532 zlib_encoder_select="zlib"
1533 zmbv_decoder_select="zlib"
1534 zmbv_encoder_select="zlib"
1535
1536 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1537 vaapi_deps="va_va_h"
1538 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1539 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1540
1541 # parsers
1542 h264_parser_select="golomb h264chroma h264dsp h264pred"
1543
1544 # external libraries
1545 libaacplus_encoder_deps="libaacplus"
1546 libcelt_decoder_deps="libcelt"
1547 libdirac_decoder_deps="libdirac !libschroedinger"
1548 libdirac_encoder_deps="libdirac"
1549 libfaac_encoder_deps="libfaac"
1550 libgsm_decoder_deps="libgsm"
1551 libgsm_encoder_deps="libgsm"
1552 libgsm_ms_decoder_deps="libgsm"
1553 libgsm_ms_encoder_deps="libgsm"
1554 libmodplug_demuxer_deps="libmodplug"
1555 libmp3lame_encoder_deps="libmp3lame"
1556 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1557 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1558 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1559 libopenjpeg_decoder_deps="libopenjpeg"
1560 libopenjpeg_encoder_deps="libopenjpeg"
1561 libschroedinger_decoder_deps="libschroedinger"
1562 libschroedinger_encoder_deps="libschroedinger"
1563 libspeex_decoder_deps="libspeex"
1564 libspeex_encoder_deps="libspeex"
1565 libstagefright_h264_decoder_deps="libstagefright_h264"
1566 libtheora_encoder_deps="libtheora"
1567 libvo_aacenc_encoder_deps="libvo_aacenc"
1568 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1569 libvorbis_encoder_deps="libvorbis"
1570 libvpx_decoder_deps="libvpx"
1571 libvpx_encoder_deps="libvpx"
1572 libx264_encoder_deps="libx264"
1573 libx264rgb_encoder_deps="libx264"
1574 libxavs_encoder_deps="libxavs"
1575 libxvid_encoder_deps="libxvid"
1576 libutvideo_decoder_deps="libutvideo gpl"
1577
1578 # demuxers / muxers
1579 ac3_demuxer_select="ac3_parser"
1580 asf_stream_muxer_select="asf_muxer"
1581 avisynth_demuxer_deps="avisynth"
1582 dirac_demuxer_select="dirac_parser"
1583 eac3_demuxer_select="ac3_parser"
1584 flac_demuxer_select="flac_parser"
1585 ipod_muxer_select="mov_muxer"
1586 libnut_demuxer_deps="libnut"
1587 libnut_muxer_deps="libnut"
1588 matroska_audio_muxer_select="matroska_muxer"
1589 matroska_demuxer_suggest="zlib bzlib"
1590 mov_demuxer_suggest="zlib"
1591 mp3_demuxer_select="mpegaudio_parser"
1592 mp4_muxer_select="mov_muxer"
1593 mpegtsraw_demuxer_select="mpegts_demuxer"
1594 mxf_d10_muxer_select="mxf_muxer"
1595 ogg_demuxer_select="golomb"
1596 psp_muxer_select="mov_muxer"
1597 rtp_demuxer_select="sdp_demuxer"
1598 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1599 rtsp_demuxer_select="http_protocol rtpdec"
1600 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1601 sap_demuxer_select="sdp_demuxer"
1602 sap_muxer_select="rtp_muxer rtp_protocol"
1603 sdp_demuxer_select="rtpdec"
1604 spdif_muxer_select="aac_parser"
1605 tg2_muxer_select="mov_muxer"
1606 tgp_muxer_select="mov_muxer"
1607 w64_demuxer_deps="wav_demuxer"
1608
1609 # indevs / outdevs
1610 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1611 alsa_outdev_deps="alsa_asoundlib_h"
1612 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1613 dshow_indev_deps="IBaseFilter"
1614 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1615 dv1394_indev_deps="dv1394 dv_demuxer"
1616 fbdev_indev_deps="linux_fb_h"
1617 jack_indev_deps="jack_jack_h sem_timedwait"
1618 lavfi_indev_deps="avfilter"
1619 libcdio_indev_deps="libcdio"
1620 libdc1394_indev_deps="libdc1394"
1621 libv4l2_indev_deps="libv4l2"
1622 openal_indev_deps="openal"
1623 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1624 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1625 pulse_indev_deps="libpulse"
1626 sdl_outdev_deps="sdl"
1627 sndio_indev_deps="sndio_h"
1628 sndio_outdev_deps="sndio_h"
1629 v4l_indev_deps="linux_videodev_h"
1630 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1631 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1632 vfwcap_indev_extralibs="-lavicap32"
1633 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1634 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1635
1636 # protocols
1637 gopher_protocol_deps="network"
1638 httpproxy_protocol_deps="network"
1639 httpproxy_protocol_select="tcp_protocol"
1640 http_protocol_deps="network"
1641 http_protocol_select="tcp_protocol"
1642 https_protocol_select="tls_protocol"
1643 mmsh_protocol_select="http_protocol"
1644 mmst_protocol_deps="network"
1645 rtmp_protocol_select="tcp_protocol"
1646 rtmpe_protocol_deps="librtmp"
1647 rtmps_protocol_deps="librtmp"
1648 rtmpt_protocol_deps="librtmp"
1649 rtmpte_protocol_deps="librtmp"
1650 rtp_protocol_select="udp_protocol"
1651 tcp_protocol_deps="network"
1652 tls_protocol_deps_any="openssl gnutls"
1653 tls_protocol_select="tcp_protocol"
1654 udp_protocol_deps="network"
1655
1656 # filters
1657 aconvert_filter_deps="swresample"
1658 amovie_filter_deps="avcodec avformat"
1659 aresample_filter_deps="swresample"
1660 ass_filter_deps="libass"
1661 blackframe_filter_deps="gpl"
1662 boxblur_filter_deps="gpl"
1663 cropdetect_filter_deps="gpl"
1664 delogo_filter_deps="gpl"
1665 drawtext_filter_deps="libfreetype"
1666 frei0r_filter_deps="frei0r dlopen"
1667 frei0r_src_filter_deps="frei0r dlopen"
1668 hqdn3d_filter_deps="gpl"
1669 movie_filter_deps="avcodec avformat"
1670 mp_filter_deps="gpl avcodec swscale"
1671 mptestsrc_filter_deps="gpl"
1672 negate_filter_deps="lut_filter"
1673 ocv_filter_deps="libopencv"
1674 pan_filter_deps="swresample"
1675 scale_filter_deps="swscale"
1676 tinterlace_filter_deps="gpl"
1677 yadif_filter_deps="gpl"
1678
1679 # libraries
1680 avdevice_deps="avcodec avformat"
1681 avformat_deps="avcodec"
1682 postproc_deps="gpl"
1683
1684 # programs
1685 ffplay_deps="avcodec avformat swscale swresample sdl"
1686 ffplay_select="buffersink_filter rdft"
1687 ffprobe_deps="avcodec avformat"
1688 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1689 ffserver_extralibs='$ldl'
1690 ffmpeg_deps="avcodec avformat swscale swresample"
1691 ffmpeg_select="buffersink_filter"
1692
1693 doc_deps="texi2html"
1694
1695 # tests
1696
1697 test_deps(){
1698     suf1=$1
1699     suf2=$2
1700     shift 2
1701     for v; do
1702         dep=${v%=*}
1703         tests=${v#*=}
1704         for name in ${tests}; do
1705             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1706         done
1707     done
1708 }
1709
1710 mxf_d10_test_deps="avfilter"
1711 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1712
1713 test_deps _encoder _decoder                                             \
1714     adpcm_ima_qt                                                        \
1715     adpcm_ima_wav                                                       \
1716     adpcm_ms                                                            \
1717     adpcm_swf                                                           \
1718     adpcm_yamaha=adpcm_yam                                              \
1719     alac                                                                \
1720     asv1                                                                \
1721     asv2                                                                \
1722     bmp                                                                 \
1723     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1724     dvvideo="dv dv_411 dv50"                                            \
1725     ffv1                                                                \
1726     flac                                                                \
1727     flashsv                                                             \
1728     flv                                                                 \
1729     adpcm_g726=g726                                                     \
1730     gif                                                                 \
1731     h261                                                                \
1732     h263="h263 h263p"                                                   \
1733     huffyuv                                                             \
1734     jpegls                                                              \
1735     mjpeg="jpg mjpeg ljpeg"                                             \
1736     mp2                                                                 \
1737     mpeg1video="mpeg mpeg1b"                                            \
1738     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1739     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1740     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1741     mpeg4="mpeg4thread error rc"                                        \
1742     msmpeg4v3=msmpeg4                                                   \
1743     msmpeg4v2                                                           \
1744     pbm=pbmpipe                                                         \
1745     pcx                                                                 \
1746     pgm="pgm pgmpipe"                                                   \
1747     png                                                                 \
1748     ppm="ppm ppmpipe"                                                   \
1749     rawvideo="rgb yuv"                                                  \
1750     roq                                                                 \
1751     rv10                                                                \
1752     rv20                                                                \
1753     sgi                                                                 \
1754     snow="snow snowll"                                                  \
1755     svq1                                                                \
1756     targa=tga                                                           \
1757     tiff                                                                \
1758     wmav1                                                               \
1759     wmav2                                                               \
1760     wmv1                                                                \
1761     wmv2                                                                \
1762
1763 test_deps _muxer _demuxer                                               \
1764     aiff                                                                \
1765     pcm_alaw=alaw                                                       \
1766     asf                                                                 \
1767     au                                                                  \
1768     avi                                                                 \
1769     dv=dv_fmt                                                           \
1770     ffm                                                                 \
1771     flv=flv_fmt                                                         \
1772     gxf                                                                 \
1773     matroska=mkv                                                        \
1774     mmf                                                                 \
1775     mov                                                                 \
1776     pcm_mulaw=mulaw                                                     \
1777     mxf="mxf mxf_d10"                                                   \
1778     nut                                                                 \
1779     ogg                                                                 \
1780     rawvideo=pixfmt                                                     \
1781     rm                                                                  \
1782     swf                                                                 \
1783     mpegts=ts                                                           \
1784     voc                                                                 \
1785     wav                                                                 \
1786     yuv4mpegpipe=yuv4mpeg                                               \
1787
1788 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1789 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1790
1791 # default parameters
1792
1793 logfile="config.log"
1794
1795 # installation paths
1796 prefix_default="/usr/local"
1797 bindir_default='${prefix}/bin'
1798 datadir_default='${prefix}/share/ffmpeg'
1799 incdir_default='${prefix}/include'
1800 libdir_default='${prefix}/lib'
1801 mandir_default='${prefix}/share/man'
1802 shlibdir_default="$libdir_default"
1803 postproc_version_default="current"
1804
1805 # toolchain
1806 ar_default="ar"
1807 cc_default="gcc"
1808 cxx_default="g++"
1809 cc_version=\"unknown\"
1810 host_cc_default="gcc"
1811 install="install"
1812 ln_s="ln -sf"
1813 nm_default="nm"
1814 objformat="elf"
1815 pkg_config_default=pkg-config
1816 ranlib="ranlib"
1817 strip_default="strip"
1818 yasmexe_default="yasm"
1819
1820 nm_opts='-g'
1821 nogas=":"
1822
1823 # machine
1824 arch_default=$(uname -m)
1825 cpu="generic"
1826
1827 # OS
1828 target_os_default=$(tolower $(uname -s))
1829 host_os=$target_os_default
1830
1831 # alternative libpostproc version
1832 ALT_PP_VER_MAJOR=51
1833 ALT_PP_VER_MINOR=2
1834 ALT_PP_VER_MICRO=101
1835 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1836
1837 # configurable options
1838 enable $PROGRAM_LIST
1839
1840 enable avcodec
1841 enable avdevice
1842 enable avfilter
1843 enable avformat
1844 enable avutil
1845 enable postproc
1846 enable stripping
1847 enable swresample
1848 enable swscale
1849
1850 enable asm
1851 enable debug
1852 enable doc
1853 enable fastdiv
1854 enable network
1855 enable optimizations
1856 enable safe_bitstream_reader
1857 enable static
1858 enable swscale_alpha
1859
1860 # build settings
1861 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1862 FFSERVERLDFLAGS=-Wl,-E
1863 LIBPREF="lib"
1864 LIBSUF=".a"
1865 FULLNAME='$(NAME)$(BUILDSUF)'
1866 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1867 SLIBPREF="lib"
1868 SLIBSUF=".so"
1869 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1870 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1871 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1872 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1873 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1874 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1875
1876 AS_O='-o $@'
1877 CC_O='-o $@'
1878 CXX_O='-o $@'
1879
1880 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1881 host_libs='-lm'
1882
1883 target_path='$(CURDIR)'
1884
1885 # since the object filename is not given with the -MM flag, the compiler
1886 # is only able to print the basename, and we must add the path ourselves
1887 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1888 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1889
1890 # find source path
1891 if test -f configure; then
1892     source_path=.
1893 else
1894     source_path=$(cd $(dirname "$0"); pwd)
1895     echo "$source_path" | grep -q '[[:blank:]]' &&
1896         die "Out of tree builds are impossible with whitespace in source path."
1897     test -e "$source_path/config.h" &&
1898         die "Out of tree builds are impossible with config.h in source dir."
1899 fi
1900
1901 for v in "$@"; do
1902     r=${v#*=}
1903     l=${v%"$r"}
1904     r=$(sh_quote "$r")
1905     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1906 done
1907
1908 find_things(){
1909     thing=$1
1910     pattern=$2
1911     file=$source_path/$3
1912     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1913 }
1914
1915 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1916 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1917 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1918 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1919 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1920 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1921 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1922 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1923 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1924 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1925 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1926
1927 ALL_COMPONENTS="
1928     $BSF_LIST
1929     $DECODER_LIST
1930     $DEMUXER_LIST
1931     $ENCODER_LIST
1932     $FILTER_LIST
1933     $HWACCEL_LIST
1934     $INDEV_LIST
1935     $MUXER_LIST
1936     $OUTDEV_LIST
1937     $PARSER_LIST
1938     $PROTOCOL_LIST
1939 "
1940
1941 find_tests(){
1942     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1943 }
1944
1945 ACODEC_TESTS=$(find_tests acodec)
1946 VCODEC_TESTS=$(find_tests vsynth1)
1947 LAVF_TESTS=$(find_tests lavf)
1948 LAVFI_TESTS=$(find_tests lavfi)
1949 SEEK_TESTS=$(find_tests seek seek_)
1950
1951 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1952
1953 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1954
1955 for n in $COMPONENT_LIST; do
1956     v=$(toupper ${n%s})_LIST
1957     eval enable \$$v
1958     eval ${n}_if_any="\$$v"
1959 done
1960
1961 enable $ARCH_EXT_LIST $ALL_TESTS
1962
1963 die_unknown(){
1964     echo "Unknown option \"$1\"."
1965     echo "See $0 --help for available options."
1966     exit 1
1967 }
1968
1969 show_list() {
1970     suffix=_$1
1971     shift
1972     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1973     exit 0
1974 }
1975
1976 for opt do
1977     optval="${opt#*=}"
1978     case "$opt" in
1979     --extra-ldflags=*) add_ldflags $optval
1980     ;;
1981     --extra-libs=*) add_extralibs $optval
1982     ;;
1983     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1984     ;;
1985     --enable-debug=*) debuglevel="$optval"
1986     ;;
1987     --disable-everything)
1988     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1989     ;;
1990     --enable-*=*|--disable-*=*)
1991     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1992     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1993     eval list=\$$(toupper $thing)_LIST
1994     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1995     $action $(filter "$name" $list)
1996     ;;
1997     --enable-?*|--disable-?*)
1998     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1999     if is_in $option $COMPONENT_LIST; then
2000         test $action = disable && action=unset
2001         eval $action \$$(toupper ${option%s})_LIST
2002     elif is_in $option $CMDLINE_SELECT; then
2003         $action $option
2004     else
2005         die_unknown $opt
2006     fi
2007     ;;
2008     --list-*)
2009         NAME="${opt#--list-}"
2010         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2011         NAME=${NAME%s}
2012         eval show_list $NAME \$$(toupper $NAME)_LIST
2013     ;;
2014     --help|-h) show_help
2015     ;;
2016     *)
2017     optname="${opt%%=*}"
2018     optname="${optname#--}"
2019     optname=$(echo "$optname" | sed 's/-/_/g')
2020     if is_in $optname $CMDLINE_SET; then
2021         eval $optname='$optval'
2022     elif is_in $optname $CMDLINE_APPEND; then
2023         append $optname "$optval"
2024     else
2025          die_unknown $opt
2026     fi
2027     ;;
2028     esac
2029 done
2030
2031 disabled logging && logfile=/dev/null
2032
2033 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2034 set >> $logfile
2035
2036 test -n "$cross_prefix" && enable cross_compile
2037
2038 if enabled cross_compile; then
2039     test -n "$arch" && test -n "$target_os" ||
2040         die "Must specify target arch and OS when cross-compiling"
2041 fi
2042
2043 set_default arch target_os postproc_version
2044
2045 # Check if we should build alternative libpostproc version instead of current
2046 if   test "$postproc_version" = $ALT_PP_VER; then
2047   LIBPOSTPROC_VERSION=$ALT_PP_VER
2048   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2049   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2050   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2051 elif test "$postproc_version" != current; then
2052   die "Invalid argument to --postproc-version. See --help output."
2053 fi
2054
2055 ar_default="${cross_prefix}${ar_default}"
2056 cc_default="${cross_prefix}${cc_default}"
2057 cxx_default="${cross_prefix}${cxx_default}"
2058 nm_default="${cross_prefix}${nm_default}"
2059 pkg_config_default="${cross_prefix}${pkg_config_default}"
2060 ranlib="${cross_prefix}${ranlib}"
2061 strip_default="${cross_prefix}${strip_default}"
2062
2063 sysinclude_default="${sysroot}/usr/include"
2064
2065 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2066 enabled cross_compile || host_cc_default=$cc
2067 set_default host_cc
2068
2069 if ! $pkg_config --version >/dev/null 2>&1; then
2070     warn "$pkg_config not found, library detection may fail."
2071     pkg_config=false
2072 fi
2073
2074 exesuf() {
2075     case $1 in
2076         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2077     esac
2078 }
2079
2080 EXESUF=$(exesuf $target_os)
2081 HOSTEXESUF=$(exesuf $host_os)
2082
2083 # set temporary file name
2084 : ${TMPDIR:=$TEMPDIR}
2085 : ${TMPDIR:=$TMP}
2086 : ${TMPDIR:=/tmp}
2087
2088 if ! check_cmd mktemp -u XXXXXX; then
2089     # simple replacement for missing mktemp
2090     # NOT SAFE FOR GENERAL USE
2091     mktemp(){
2092         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2093     }
2094 fi
2095
2096 tmpfile(){
2097     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2098         (set -C; exec > $tmp) 2>/dev/null ||
2099         die "Unable to create temporary file in $TMPDIR."
2100     append TMPFILES $tmp
2101     eval $1=$tmp
2102 }
2103
2104 trap 'rm -f -- $TMPFILES' EXIT
2105
2106 tmpfile TMPASM .asm
2107 tmpfile TMPC   .c
2108 tmpfile TMPCPP .cpp
2109 tmpfile TMPE   $EXESUF
2110 tmpfile TMPH   .h
2111 tmpfile TMPO   .o
2112 tmpfile TMPS   .S
2113 tmpfile TMPSH  .sh
2114 tmpfile TMPV   .ver
2115
2116 unset -f mktemp
2117
2118 chmod +x $TMPE
2119
2120 # make sure we can execute files in $TMPDIR
2121 cat > $TMPSH 2>> $logfile <<EOF
2122 #! /bin/sh
2123 EOF
2124 chmod +x $TMPSH >> $logfile 2>&1
2125 if ! $TMPSH >> $logfile 2>&1; then
2126     cat <<EOF
2127 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2128 variable to another directory and make sure that it is not mounted noexec.
2129 EOF
2130     die "Sanity test failed."
2131 fi
2132
2133 filter_asflags=echo
2134 filter_cflags=echo
2135 filter_cppflags=echo
2136
2137 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2138     cc_type=llvm_gcc
2139     cc_version=__VERSION__
2140     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2141     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2142     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2143     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2144     speed_cflags='-O3'
2145     size_cflags='-Os'
2146 elif $cc -v 2>&1 | grep -qi ^gcc; then
2147     cc_type=gcc
2148     cc_version=__VERSION__
2149     gcc_version=$($cc --version | head -n1)
2150     gcc_basever=$($cc -dumpversion)
2151     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2152     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2153     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2154     if ! $cc -dumpversion | grep -q '^2\.'; then
2155         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2156         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2157     fi
2158     speed_cflags='-O3'
2159     size_cflags='-Os'
2160 elif $cc --version 2>/dev/null | grep -q Intel; then
2161     cc_type=icc
2162     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2163     cc_ident=$($cc --version | head -n1)
2164     icc_version=$($cc -dumpversion)
2165     CC_DEPFLAGS='-MMD'
2166     AS_DEPFLAGS='-MMD'
2167     speed_cflags='-O3'
2168     size_cflags='-Os'
2169     noopt_cflags='-O1'
2170 elif $cc -v 2>&1 | grep -q xlc; then
2171     cc_type=xlc
2172     cc_version="AV_STRINGIFY(__IBMC__)"
2173     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2174     speed_cflags='-O5'
2175     size_cflags='-O5 -qcompact'
2176 elif $cc -V 2>/dev/null | grep -q Compaq; then
2177     cc_type=ccc
2178     cc_version="AV_STRINGIFY(__DECC_VER)"
2179     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2180     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2181     debuglevel=3
2182     add_ldflags -Wl,-z,now # calls to libots crash without this
2183     speed_cflags='-fast'
2184     size_cflags='-O1'
2185 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2186     test -d "$sysroot" || die "No valid sysroot specified."
2187     cc_type=armcc
2188     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2189     cc_ident=$($cc --vsn | head -n1)
2190     armcc_conf="$PWD/armcc.conf"
2191     $cc --arm_linux_configure                 \
2192         --arm_linux_config_file="$armcc_conf" \
2193         --configure_sysroot="$sysroot"        \
2194         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2195         die "Error creating armcc configuration file."
2196     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2197     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2198     as_default="${cross_prefix}gcc"
2199     CC_DEPFLAGS='-MMD'
2200     AS_DEPFLAGS='-MMD'
2201     speed_cflags='-O3'
2202     size_cflags='-Os'
2203     filter_asflags="filter_out -W${armcc_opt}*"
2204 elif $cc -version 2>/dev/null | grep -q TMS470; then
2205     cc_type=tms470
2206     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2207     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2208     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2209     CC_O='-fr=$(@D)'
2210     as_default="${cross_prefix}gcc"
2211     ld_default="${cross_prefix}gcc"
2212     TMPO=$(basename $TMPC .c).o
2213     append TMPFILES $TMPO
2214     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2215     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2216     AS_DEPFLAGS='-MMD'
2217     speed_cflags='-O3 -mf=5'
2218     size_cflags='-O3 -mf=2'
2219     filter_cflags=tms470_flags
2220     tms470_flags(){
2221         for flag; do
2222             case $flag in
2223                 -march=*|-mcpu=*)
2224                     case "${flag#*=}" in
2225                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2226                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2227                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2228                         armv6*|arm11*)          echo -mv=6   ;;
2229                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2230                                                 echo -mv=5e  ;;
2231                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2232                     esac
2233                     ;;
2234                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2235                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2236                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2237                 -msoft-float)   echo --float_support=vfplib       ;;
2238                 -O[0-3]|-mf=*)  echo $flag                        ;;
2239                 -g)             echo -g -mn                       ;;
2240                 -pds=*)         echo $flag                        ;;
2241             esac
2242         done
2243     }
2244 elif $cc -v 2>&1 | grep -q clang; then
2245     cc_type=clang
2246     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2247         cc_version=__clang_version__ || cc_version=__VERSION__
2248     cc_ident=$($cc --version | head -n1)
2249     CC_DEPFLAGS='-MMD'
2250     AS_DEPFLAGS='-MMD'
2251     speed_cflags='-O3'
2252     size_cflags='-Os'
2253 elif $cc -V 2>&1 | grep -q Sun; then
2254     cc_type=suncc
2255     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2256     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2257     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2258     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2259     add_ldflags -xc99
2260     speed_cflags='-O5'
2261     size_cflags='-O5 -xspace'
2262     filter_cflags=suncc_flags
2263     suncc_flags(){
2264         for flag; do
2265             case $flag in
2266                 -march=*|-mcpu=*)
2267                     case "${flag#*=}" in
2268                         native)                   echo -xtarget=native       ;;
2269                         v9|niagara)               echo -xarch=sparc          ;;
2270                         ultrasparc)               echo -xarch=sparcvis       ;;
2271                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2272                         i586|pentium)             echo -xchip=pentium        ;;
2273                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2274                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2275                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2276                         pentium4*)          echo -xtarget=pentium4           ;;
2277                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2278                         *-sse3)             echo -xarch=sse3                 ;;
2279                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2280                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2281                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2282                         k8|opteron|athlon64|athlon-fx)
2283                                                   echo -xarch=sse2a          ;;
2284                         athlon*)                  echo -xarch=pentium_proa   ;;
2285                     esac
2286                     ;;
2287                 -std=c99)             echo -xc99              ;;
2288                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2289                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2290                 -W*,*)                echo $flag              ;;
2291                 -f*-*|-W*)                                    ;;
2292                 *)                    echo $flag              ;;
2293             esac
2294         done
2295     }
2296 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2297     cc_type=pathscale
2298     cc_version=__PATHSCALE__
2299     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2300     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2301     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2302     speed_cflags='-O2'
2303     size_cflags='-Os'
2304     filter_cflags='filter_out -Wdisabled-optimization'
2305 elif $cc -v 2>&1 | grep -q Open64; then
2306     cc_type=open64
2307     cc_version=__OPEN64__
2308     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2309     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2310     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2311     speed_cflags='-O2'
2312     size_cflags='-Os'
2313     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2314 fi
2315
2316 test -n "$cc_type" && enable $cc_type ||
2317     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2318
2319 : ${as_default:=$cc}
2320 : ${dep_cc_default:=$cc}
2321 : ${ld_default:=$cc}
2322 set_default ar as dep_cc ld
2323
2324 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2325 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2326 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2327
2328 add_cflags $extra_cflags
2329 add_cxxflags $extra_cxxflags
2330 add_asflags $extra_cflags
2331
2332 if test -n "$sysroot"; then
2333     case "$cc_type" in
2334         gcc|llvm_gcc|clang)
2335             add_cppflags --sysroot="$sysroot"
2336             add_ldflags --sysroot="$sysroot"
2337         ;;
2338         tms470)
2339             add_cppflags -I"$sysinclude"
2340             add_ldflags  --sysroot="$sysroot"
2341         ;;
2342     esac
2343 fi
2344
2345 if test "$cpu" = host; then
2346     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2347
2348     case "$cc_type" in
2349         gcc|llvm_gcc)
2350             check_native(){
2351                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2352                 sed -n "/cc1.*$1=/{
2353                             s/.*$1=\\([^ ]*\\).*/\\1/
2354                             p
2355                             q
2356                         }" $TMPE
2357             }
2358             cpu=$(check_native -march || check_native -mcpu)
2359         ;;
2360     esac
2361
2362     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2363 fi
2364
2365 # Deal with common $arch aliases
2366 case "$arch" in
2367     arm*|iPad*)
2368         arch="arm"
2369     ;;
2370     mips|mipsel|IP*)
2371         arch="mips"
2372     ;;
2373     mips64*)
2374         arch="mips"
2375         subarch="mips64"
2376     ;;
2377     parisc|hppa)
2378         arch="parisc"
2379     ;;
2380     parisc64|hppa64)
2381         arch="parisc"
2382         subarch="parisc64"
2383     ;;
2384     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2385         arch="ppc"
2386     ;;
2387     s390|s390x)
2388         arch="s390"
2389     ;;
2390     sh4|sh)
2391         arch="sh4"
2392     ;;
2393     sun4u|sparc64)
2394         arch="sparc"
2395         subarch="sparc64"
2396     ;;
2397     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2398         arch="x86"
2399     ;;
2400 esac
2401
2402 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2403 enable $arch
2404
2405 # Add processor-specific flags
2406 if test "$cpu" = generic; then
2407     : do nothing
2408 elif enabled ppc; then
2409
2410     case $(tolower $cpu) in
2411         601|ppc601|powerpc601)
2412             cpuflags="-mcpu=601"
2413             disable altivec
2414         ;;
2415         603*|ppc603*|powerpc603*)
2416             cpuflags="-mcpu=603"
2417             disable altivec
2418         ;;
2419         604*|ppc604*|powerpc604*)
2420             cpuflags="-mcpu=604"
2421             disable altivec
2422         ;;
2423         g3|75*|ppc75*|powerpc75*)
2424             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2425             disable altivec
2426         ;;
2427         g4|745*|ppc745*|powerpc745*)
2428             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2429         ;;
2430         74*|ppc74*|powerpc74*)
2431             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2432         ;;
2433         g5|970|ppc970|powerpc970|power4*)
2434             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2435         ;;
2436         cell)
2437             cpuflags="-mcpu=cell"
2438             enable ldbrx
2439         ;;
2440         e500v2)
2441             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2442             disable altivec
2443         ;;
2444         e500)
2445             cpuflags="-mcpu=8540 -mhard-float"
2446             disable altivec
2447         ;;
2448     esac
2449
2450 elif enabled x86; then
2451
2452     case $cpu in
2453         i[345]86|pentium)
2454             cpuflags="-march=$cpu"
2455             disable mmx
2456         ;;
2457         # targets that do NOT support conditional mov (cmov)
2458         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2459             cpuflags="-march=$cpu"
2460             disable cmov
2461         ;;
2462         # targets that do support conditional mov (cmov)
2463         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2464             cpuflags="-march=$cpu"
2465             enable cmov
2466             enable fast_cmov
2467         ;;
2468         # targets that do support conditional mov but on which it's slow
2469         pentium4|pentium4m|prescott|nocona)
2470             cpuflags="-march=$cpu"
2471             enable cmov
2472             disable fast_cmov
2473         ;;
2474     esac
2475
2476 elif enabled sparc; then
2477
2478     case $cpu in
2479         niagara)
2480             cpuflags="-mcpu=$cpu"
2481             disable vis
2482         ;;
2483         sparc64)
2484             cpuflags="-mcpu=v9"
2485         ;;
2486     esac
2487
2488 elif enabled arm; then
2489
2490     case $cpu in
2491         armv*)
2492             cpuflags="-march=$cpu"
2493             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2494         ;;
2495         *)
2496             cpuflags="-mcpu=$cpu"
2497             case $cpu in
2498                 cortex-a*)                               subarch=armv7a  ;;
2499                 cortex-r*)                               subarch=armv7r  ;;
2500                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2501                 arm11*)                                  subarch=armv6   ;;
2502                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2503                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2504             esac
2505         ;;
2506     esac
2507
2508 elif enabled alpha; then
2509
2510     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2511
2512 elif enabled bfin; then
2513
2514     cpuflags="-mcpu=$cpu"
2515
2516 elif enabled mips; then
2517
2518     cpuflags="-march=$cpu"
2519
2520 elif enabled avr32; then
2521
2522     case $cpu in
2523         ap7[02]0[0-2])
2524             subarch="avr32_ap"
2525             cpuflags="-mpart=$cpu"
2526         ;;
2527         ap)
2528             subarch="avr32_ap"
2529             cpuflags="-march=$cpu"
2530         ;;
2531         uc3[ab]*)
2532             subarch="avr32_uc"
2533             cpuflags="-mcpu=$cpu"
2534         ;;
2535         uc)
2536             subarch="avr32_uc"
2537             cpuflags="-march=$cpu"
2538         ;;
2539     esac
2540
2541 fi
2542
2543 add_cflags $cpuflags
2544 add_asflags $cpuflags
2545
2546 # compiler sanity check
2547 check_exec <<EOF
2548 int main(void){ return 0; }
2549 EOF
2550 if test "$?" != 0; then
2551     echo "$cc is unable to create an executable file."
2552     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2553         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2554         echo "Only do this if you know what cross compiling means."
2555     fi
2556     die "C compiler test failed."
2557 fi
2558
2559 add_cppflags -D_ISOC99_SOURCE
2560 add_cxxflags -D__STDC_CONSTANT_MACROS
2561 check_cflags -std=c99
2562 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2563 #include <stdlib.h>
2564 EOF
2565 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2566 #include <stdlib.h>
2567 EOF
2568
2569 check_host_cflags -std=c99
2570 check_host_cflags -Wall
2571
2572 case "$arch" in
2573     alpha|ia64|mips|parisc|sparc)
2574         spic=$shared
2575     ;;
2576     x86)
2577         subarch="x86_32"
2578         check_cc <<EOF && subarch="x86_64"
2579         int test[(int)sizeof(char*) - 7];
2580 EOF
2581         if test "$subarch" = "x86_64"; then
2582             spic=$shared
2583         fi
2584     ;;
2585     ppc)
2586         check_cc <<EOF && subarch="ppc64"
2587         int test[(int)sizeof(char*) - 7];
2588 EOF
2589     ;;
2590 esac
2591
2592 enable $subarch
2593 enabled spic && enable pic
2594
2595 # OS specific
2596 case $target_os in
2597     haiku)
2598         prefix_default="/boot/common"
2599         network_extralibs="-lnetwork"
2600         host_libs=
2601         ;;
2602     sunos)
2603         FFSERVERLDFLAGS=""
2604         SHFLAGS='-shared -Wl,-h,$$(@F)'
2605         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2606         network_extralibs="-lsocket -lnsl"
2607         add_cppflags -D__EXTENSIONS__
2608         # When using suncc to build, the Solaris linker will mark
2609         # an executable with each instruction set encountered by
2610         # the Solaris assembler.  As our libraries contain their own
2611         # guards for processor-specific code, instead suppress
2612         # generation of the HWCAPS ELF section on Solaris x86 only.
2613         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2614         nm_opts='-P -g'
2615         ;;
2616     netbsd)
2617         disable symver
2618         oss_indev_extralibs="-lossaudio"
2619         oss_outdev_extralibs="-lossaudio"
2620         ;;
2621     openbsd)
2622         enable malloc_aligned
2623         # On OpenBSD 4.5. the compiler does not use PIC unless
2624         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2625         # however the generated executable will not do anything
2626         # (simply quits with exit-code 1, no crash, no output).
2627         # Thus explicitly enable PIC here.
2628         enable pic
2629         disable symver
2630         SHFLAGS='-shared'
2631         oss_indev_extralibs="-lossaudio"
2632         oss_outdev_extralibs="-lossaudio"
2633         ;;
2634     dragonfly)
2635         enable malloc_aligned
2636         disable symver
2637         ;;
2638     freebsd)
2639         enable malloc_aligned
2640         ;;
2641     bsd/os)
2642         add_extralibs -lpoll -lgnugetopt
2643         strip="strip -d"
2644         ;;
2645     darwin)
2646         enable malloc_aligned
2647         gas="gas-preprocessor.pl $cc"
2648         enabled ppc && add_asflags -force_cpusubtype_ALL
2649         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2650         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2651         strip="${strip} -x"
2652         add_ldflags -Wl,-dynamic,-search_paths_first
2653         SLIBSUF=".dylib"
2654         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2655         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2656         FFSERVERLDFLAGS=-Wl,-bind_at_load
2657         objformat="macho"
2658         enabled x86_64 && objformat="macho64"
2659         enabled_any pic shared ||
2660             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2661         ;;
2662     mingw32*)
2663         if test $target_os = "mingw32ce"; then
2664             disable network
2665         else
2666             target_os=mingw32
2667         fi
2668         LIBTARGET=i386
2669         if enabled x86_64; then
2670             enable malloc_aligned
2671             LIBTARGET=x64
2672         elif enabled arm; then
2673             LIBTARGET=arm-wince
2674         fi
2675         shlibdir_default="$bindir_default"
2676         SLIBPREF=""
2677         SLIBSUF=".dll"
2678         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2679         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2680         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2681         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2682         SLIB_INSTALL_LINKS=
2683         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2684         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2685         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'
2686         objformat="win32"
2687         enable dos_paths
2688         check_cflags -fno-common
2689         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2690                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2691                 die "ERROR: MinGW runtime version must be >= 3.15."
2692         add_cppflags -U__STRICT_ANSI__
2693         ;;
2694     cygwin*)
2695         target_os=cygwin
2696         shlibdir_default="$bindir_default"
2697         SLIBPREF="cyg"
2698         SLIBSUF=".dll"
2699         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2700         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2701         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2702         objformat="win32"
2703         enable dos_paths
2704         check_cflags -fno-common
2705         add_cppflags -U__STRICT_ANSI__
2706         ;;
2707     *-dos|freedos|opendos)
2708         network_extralibs="-lsocket"
2709         objformat="coff"
2710         enable dos_paths
2711         add_cppflags -U__STRICT_ANSI__
2712         ;;
2713     linux)
2714         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2715         enable dv1394
2716         ;;
2717     irix*)
2718         target_os=irix
2719         ranlib="echo ignoring ranlib"
2720         ;;
2721     os/2*)
2722         strip="lxlite -CS"
2723         ln_s="cp -f"
2724         objformat="aout"
2725         add_cppflags -D_GNU_SOURCE
2726         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2727         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2728         FFSERVERLDFLAGS=""
2729         LIBSUF="_s.a"
2730         SLIBPREF=""
2731         SLIBSUF=".dll"
2732         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2733         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2734         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2735           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2736           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2737           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2738           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2739           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2740         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2741           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2742         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2743         enable dos_paths
2744         enable_weak os2threads
2745         ;;
2746     gnu/kfreebsd)
2747         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2748         ;;
2749     gnu)
2750         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2751         ;;
2752     qnx)
2753         add_cppflags -D_QNX_SOURCE
2754         network_extralibs="-lsocket"
2755         ;;
2756     symbian)
2757         SLIBSUF=".dll"
2758         enable dos_paths
2759         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2760         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2761         add_ldflags -Wl,--target1-abs,--no-undefined \
2762                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2763                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2764         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2765                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2766                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2767         ;;
2768     none)
2769         ;;
2770     *)
2771         die "Unknown OS '$target_os'."
2772         ;;
2773 esac
2774
2775 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2776
2777 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2778
2779 set_default $PATHS_LIST
2780
2781 # we need to build at least one lib type
2782 if ! enabled_any static shared; then
2783     cat <<EOF
2784 At least one library type must be built.
2785 Specify --enable-static to build the static libraries or --enable-shared to
2786 build the shared libraries as well. To only build the shared libraries specify
2787 --disable-static in addition to --enable-shared.
2788 EOF
2789     exit 1;
2790 fi
2791
2792 die_license_disabled() {
2793     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2794 }
2795
2796 die_license_disabled gpl libcdio
2797 die_license_disabled gpl libx264
2798 die_license_disabled gpl libxavs
2799 die_license_disabled gpl libxvid
2800 die_license_disabled gpl x11grab
2801
2802 die_license_disabled nonfree libaacplus
2803 die_license_disabled nonfree libfaac
2804 die_license_disabled nonfree openssl
2805
2806 die_license_disabled version3 libopencore_amrnb
2807 die_license_disabled version3 libopencore_amrwb
2808 die_license_disabled version3 libvo_aacenc
2809 die_license_disabled version3 libvo_amrwbenc
2810
2811 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2812
2813 disabled optimizations || check_cflags -fomit-frame-pointer
2814
2815 enable_pic() {
2816     enable pic
2817     add_cppflags -DPIC
2818     add_cflags   -fPIC
2819     add_asflags  -fPIC
2820 }
2821
2822 enabled pic && enable_pic
2823
2824 check_cc <<EOF || die "Symbol mangling check failed."
2825 int ff_extern;
2826 EOF
2827 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2828 extern_prefix=${sym%%ff_extern*}
2829
2830 check_cc <<EOF && enable inline_asm
2831 void foo(void) { __asm__ volatile ("" ::); }
2832 EOF
2833
2834 _restrict=
2835 for restrict_keyword in restrict __restrict__ __restrict; do
2836     check_cc <<EOF && _restrict=$restrict_keyword && break
2837 void foo(char * $restrict_keyword p);
2838 EOF
2839 done
2840
2841 check_cc <<EOF && enable attribute_packed
2842 struct { int x; } __attribute__((packed)) x;
2843 EOF
2844
2845 check_cc <<EOF && enable attribute_may_alias
2846 union { int x; } __attribute__((may_alias)) x;
2847 EOF
2848
2849 check_cc <<EOF || die "endian test failed"
2850 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2851 EOF
2852 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2853
2854 if enabled alpha; then
2855
2856     check_cflags -mieee
2857
2858 elif enabled arm; then
2859
2860     enabled thumb && check_cflags -mthumb || check_cflags -marm
2861     nogas=die
2862
2863     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2864         enable vfp_args
2865     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2866         case "${cross_prefix:-$cc}" in
2867             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2868             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2869 __asm__ (".eabi_attribute 28, 1");
2870 int main(void) { return 0; }
2871 EOF
2872         esac
2873         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2874     fi
2875
2876     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2877     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2878     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2879     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2880     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2881     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2882     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2883
2884     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2885
2886     enabled_all armv6t2 shared !pic && enable_pic
2887
2888 elif enabled mips; then
2889
2890     check_asm loongson '"dmult.g $1, $2, $3"'
2891     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2892
2893 elif enabled ppc; then
2894
2895     enable local_aligned_8 local_aligned_16
2896
2897     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2898     check_asm ibm_asm   '"add 0, 0, 0"'
2899     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2900     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2901
2902     # AltiVec flags: The FSF version of GCC differs from the Apple version
2903     if enabled altivec; then
2904         nogas=warn
2905         check_cflags -maltivec -mabi=altivec &&
2906         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2907         check_cflags -faltivec
2908
2909         # check if our compiler supports Motorola AltiVec C API
2910         check_cc <<EOF || disable altivec
2911 $inc_altivec_h
2912 int main(void) {
2913     vector signed int v1, v2, v3;
2914     v1 = vec_add(v2,v3);
2915     return 0;
2916 }
2917 EOF
2918
2919         # check if our compiler supports braces for vector declarations
2920         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2921 $inc_altivec_h
2922 int main (void) { (vector int) {1}; return 0; }
2923 EOF
2924     fi
2925
2926 elif enabled sparc; then
2927
2928     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2929         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2930
2931 elif enabled x86; then
2932
2933     enable local_aligned_8 local_aligned_16
2934
2935     # check whether EBP is available on x86
2936     # As 'i' is stored on the stack, this program will crash
2937     # if the base pointer is used to access it because the
2938     # base pointer is cleared in the inline assembly code.
2939     check_exec_crash <<EOF && enable ebp_available
2940     volatile int i=0;
2941     __asm__ volatile (
2942         "xorl %%ebp, %%ebp"
2943     ::: "%ebp");
2944     return i;
2945 EOF
2946
2947     # check whether EBX is available on x86
2948     check_asm ebx_available '""::"b"(0)' &&
2949         check_asm ebx_available '"":::"%ebx"'
2950
2951     # check whether xmm clobbers are supported
2952     check_asm xmm_clobbers '"":::"%xmm0"'
2953
2954     # check whether binutils is new enough to compile SSSE3/MMX2
2955     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2956     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2957
2958     if ! disabled_any asm mmx yasm; then
2959         if check_cmd $yasmexe --version; then
2960             enabled x86_64 && yasm_extra="-m amd64"
2961             yasm_debug="-g dwarf2"
2962         elif check_cmd nasm -v; then
2963             yasmexe=nasm
2964             yasm_debug="-g -F dwarf"
2965             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2966         fi
2967
2968         YASMFLAGS="-f $objformat $yasm_extra"
2969         enabled pic               && append YASMFLAGS "-DPIC"
2970         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2971         case "$objformat" in
2972             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2973         esac
2974
2975         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2976             die "yasm not found, use --disable-yasm for a crippled build"
2977         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2978     fi
2979
2980     case "$cpu" in
2981         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2982             disable fast_clz
2983         ;;
2984     esac
2985
2986 fi
2987
2988 if enabled asm; then
2989     as=${gas:=$as}
2990     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2991         $nogas "GNU assembler not found, install gas-preprocessor"
2992 fi
2993
2994 check_ldflags -Wl,--as-needed
2995
2996 if check_func dlopen; then
2997     ldl=
2998 elif check_func dlopen -ldl; then
2999     ldl=-ldl
3000 fi
3001
3002 if enabled network; then
3003     check_type "sys/types.h sys/socket.h" socklen_t
3004     check_type netdb.h "struct addrinfo"
3005     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3006     check_type netinet/in.h "struct sockaddr_in6"
3007     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3008     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3009     # Prefer arpa/inet.h over winsock2
3010     if check_header arpa/inet.h ; then
3011         check_func closesocket
3012     elif check_header winsock2.h ; then
3013         check_func_headers winsock2.h closesocket -lws2 && \
3014             network_extralibs="-lws2" || \
3015         { check_func_headers winsock2.h closesocket -lws2_32 && \
3016             network_extralibs="-lws2_32"; }
3017         check_type ws2tcpip.h socklen_t
3018         check_type ws2tcpip.h "struct addrinfo"
3019         check_type ws2tcpip.h "struct ipv6_mreq"
3020         check_type ws2tcpip.h "struct sockaddr_in6"
3021         check_type ws2tcpip.h "struct sockaddr_storage"
3022         check_struct winsock2.h "struct sockaddr" sa_len
3023     else
3024         disable network
3025     fi
3026 fi
3027
3028 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3029 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3030
3031 check_func  fcntl
3032 check_func  fork
3033 check_func  getaddrinfo $network_extralibs
3034 check_func  gethrtime
3035 check_func  getrusage
3036 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3037 check_func  inet_aton $network_extralibs
3038 check_func  isatty
3039 check_func  localtime_r
3040 check_func  ${malloc_prefix}memalign            && enable memalign
3041 check_func  mkstemp
3042 check_func  mmap
3043 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3044 check_func  setrlimit
3045 check_func  strerror_r
3046 check_func  strptime
3047 check_func  sched_getaffinity
3048 check_func  sysconf
3049 check_func  sysctl
3050 check_func_headers conio.h kbhit
3051 check_func_headers windows.h PeekNamedPipe
3052 check_func_headers io.h setmode
3053 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3054 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3055 check_func_headers windows.h GetProcessAffinityMask
3056 check_func_headers windows.h GetProcessTimes
3057 check_func_headers windows.h MapViewOfFile
3058 check_func_headers windows.h VirtualAlloc
3059
3060 check_header dlfcn.h
3061 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3062 check_header libcrystalhd/libcrystalhd_if.h
3063 check_header malloc.h
3064 check_header poll.h
3065 check_header sys/mman.h
3066 check_header sys/param.h
3067 check_header sys/resource.h
3068 check_header sys/select.h
3069 check_header termios.h
3070 check_header vdpau/vdpau.h
3071 check_header vdpau/vdpau_x11.h
3072 check_header X11/extensions/XvMClib.h
3073 check_header asm/types.h
3074
3075 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3076 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3077
3078 # check for VDA header
3079 if ! disabled vda; then
3080     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3081         enable vda
3082         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3083     fi
3084 fi
3085
3086 if ! disabled w32threads && ! enabled pthreads; then
3087     check_func _beginthreadex && enable w32threads
3088 fi
3089
3090 # check for some common methods of building with pthread support
3091 # do this before the optional library checks as some of them require pthreads
3092 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3093     enable pthreads
3094     if check_func pthread_create; then
3095         :
3096     elif check_func pthread_create -pthread; then
3097         add_cflags -pthread
3098         add_extralibs -pthread
3099     elif check_func pthread_create -pthreads; then
3100         add_cflags -pthreads
3101         add_extralibs -pthreads
3102     elif check_func pthread_create -lpthreadGC2; then
3103         add_extralibs -lpthreadGC2
3104     elif ! check_lib pthread.h pthread_create -lpthread; then
3105         disable pthreads
3106     fi
3107 fi
3108
3109 for thread in $THREADS_LIST; do
3110     if enabled $thread; then
3111         test -n "$thread_type" &&
3112             die "ERROR: Only one thread type must be selected." ||
3113             thread_type="$thread"
3114     fi
3115 done
3116
3117 check_lib math.h sin -lm && LIBM="-lm"
3118 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3119 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3120
3121 check_mathfunc cbrtf
3122 check_mathfunc exp2
3123 check_mathfunc exp2f
3124 check_mathfunc llrint
3125 check_mathfunc llrintf
3126 check_mathfunc log2
3127 check_mathfunc log2f
3128 check_mathfunc lrint
3129 check_mathfunc lrintf
3130 check_mathfunc round
3131 check_mathfunc roundf
3132 check_mathfunc trunc
3133 check_mathfunc truncf
3134
3135 # these are off by default, so fail if requested and not available
3136 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3137 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3138 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3139 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3140 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3141 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3142                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3143                         die "ERROR: libcelt version must be >= 0.11.0."; }
3144 enabled libdirac   && require_pkg_config dirac                          \
3145     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
3146     "dirac_decoder_init dirac_encoder_init"
3147 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3148 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3149 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3150 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3151 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3152 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3153 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3154 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3155 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3156 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3157 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3158 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3159 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3160 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3161 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3162     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3163     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder
3164 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3165 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3166 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3167 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3168 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3169 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3170 enabled libvpx     && {
3171     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3172                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3173     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3174                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
3175 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3176                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3177                         die "ERROR: libx264 version must be >= 0.118."; }
3178 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3179 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3180 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3181                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3182                         die "ERROR: openal not found"; } &&
3183                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3184                         die "ERROR: openal version must be 1.1 or compatible"; }
3185 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3186                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3187                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3188                         die "ERROR: openssl not found"; }
3189
3190 # libdc1394 check
3191 if enabled libdc1394; then
3192     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3193         enable libdc1394_2; } ||
3194     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3195         enable libdc1394_1; } ||
3196     die "ERROR: No version of libdc1394 found "
3197 fi
3198
3199 SDL_CONFIG="${cross_prefix}sdl-config"
3200 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
3201     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3202     enable sdl &&
3203     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3204 else
3205   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3206     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3207     sdl_libs=$("${SDL_CONFIG}" --libs)
3208     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3209     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3210     enable sdl &&
3211     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3212   fi
3213 fi
3214 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3215
3216 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3217 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3218
3219 check_header linux/fb.h
3220 check_header linux/videodev.h
3221 check_header linux/videodev2.h
3222 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3223
3224 check_header sys/videoio.h
3225
3226 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3227 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3228 # w32api 3.12 had it defined wrong
3229 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3230
3231 check_type "dshow.h" IBaseFilter
3232
3233 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3234 { check_header dev/bktr/ioctl_meteor.h &&
3235   check_header dev/bktr/ioctl_bt848.h; } ||
3236 { check_header machine/ioctl_meteor.h &&
3237   check_header machine/ioctl_bt848.h; } ||
3238 { check_header dev/video/meteor/ioctl_meteor.h &&
3239   check_header dev/video/bktr/ioctl_bt848.h; } ||
3240 check_header dev/ic/bt8xx.h
3241
3242 check_header sndio.h
3243 if check_struct sys/soundcard.h audio_buf_info bytes; then
3244     enable_safe sys/soundcard.h
3245 else
3246     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3247     #include <sys/soundcard.h>
3248     audio_buf_info abc;
3249 EOF
3250 fi
3251 check_header soundcard.h
3252
3253 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3254
3255 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3256
3257 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3258
3259 enabled libcdio &&
3260     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3261
3262 enabled x11grab                         &&
3263 check_header X11/Xlib.h                 &&
3264 check_header X11/extensions/XShm.h      &&
3265 check_header X11/extensions/Xfixes.h    &&
3266 check_func XOpenDisplay -lX11           &&
3267 check_func XShmCreateImage -lX11 -lXext &&
3268 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3269
3270 if ! disabled vaapi; then
3271     check_lib va/va.h vaInitialize -lva && {
3272         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3273         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3274     } || disable vaapi
3275 fi
3276
3277 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3278 check_cpp_condition \
3279     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3280     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3281       disable vdpau; }
3282 fi
3283
3284 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3285 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3286 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3287
3288 # add some useful compiler flags if supported
3289 check_cflags -Wdeclaration-after-statement
3290 check_cflags -Wall
3291 check_cflags -Wno-parentheses
3292 check_cflags -Wno-switch
3293 check_cflags -Wno-format-zero-length
3294 check_cflags -Wdisabled-optimization
3295 check_cflags -Wpointer-arith
3296 check_cflags -Wredundant-decls
3297 check_cflags -Wno-pointer-sign
3298 check_cflags -Wcast-qual
3299 check_cflags -Wwrite-strings
3300 check_cflags -Wtype-limits
3301 check_cflags -Wundef
3302 check_cflags -Wmissing-prototypes
3303 check_cflags -Wno-pointer-to-int-cast
3304 check_cflags -Wstrict-prototypes
3305 enabled extra_warnings && check_cflags -Winline
3306
3307 # add some linker flags
3308 check_ldflags -Wl,--warn-common
3309 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3310 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3311
3312 enabled xmm_clobber_test &&                             \
3313     check_ldflags -Wl,--wrap,avcodec_open2              \
3314                   -Wl,--wrap,avcodec_decode_audio4      \
3315                   -Wl,--wrap,avcodec_decode_video2      \
3316                   -Wl,--wrap,avcodec_decode_subtitle2   \
3317                   -Wl,--wrap,avcodec_encode_audio2      \
3318                   -Wl,--wrap,avcodec_encode_video       \
3319                   -Wl,--wrap,avcodec_encode_subtitle    \
3320                   -Wl,--wrap,sws_scale ||               \
3321     disable xmm_clobber_test
3322
3323 echo "X{};" > $TMPV
3324 if test_ldflags -Wl,--version-script,$TMPV; then
3325     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3326     check_cc <<EOF && enable symver_asm_label
3327 void ff_foo(void) __asm__ ("av_foo@VERSION");
3328 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3329 EOF
3330     check_cc <<EOF && enable symver_gnu_asm
3331 __asm__(".symver ff_foo,av_foo@VERSION");
3332 void ff_foo(void) {}
3333 EOF
3334 fi
3335
3336 if [ -n "$optflags" ]; then
3337     add_cflags $optflags
3338 elif enabled small; then
3339     add_cflags $size_cflags
3340 elif enabled optimizations; then
3341     add_cflags $speed_cflags
3342 else
3343     add_cflags $noopt_cflags
3344 fi
3345 check_cflags -fno-math-errno
3346 check_cflags -fno-signed-zeros
3347 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3348 int x;
3349 EOF
3350
3351
3352 if enabled icc; then
3353     # Just warnings, no remarks
3354     check_cflags -w1
3355     # -wd: Disable following warnings
3356     # 144, 167, 556: -Wno-pointer-sign
3357     # 1292: attribute "foo" ignored
3358     # 10006: ignoring unknown option -fno-signed-zeros
3359     # 10148: ignoring unknown option -Wno-parentheses
3360     # 10156: ignoring option '-W'; no argument required
3361     check_cflags -wd144,167,556,1292,10006,10148,10156
3362     # 11030: Warning unknown option --as-needed
3363     # 10156: ignoring option '-export'; no argument required
3364     check_ldflags -wd10156,11030
3365     # Allow to compile with optimizations
3366     check_ldflags -march=$cpu
3367     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3368     enable ebp_available
3369     if enabled x86_32; then
3370         test ${icc_version%%.*} -ge 11 && \
3371             check_cflags -falign-stack=maintain-16-byte || \
3372             disable aligned_stack
3373     fi
3374 elif enabled ccc; then
3375     # disable some annoying warnings
3376     add_cflags -msg_disable cvtu32to64
3377     add_cflags -msg_disable embedcomment
3378     add_cflags -msg_disable needconstext
3379     add_cflags -msg_disable nomainieee
3380     add_cflags -msg_disable ptrmismatch1
3381     add_cflags -msg_disable unreachcode
3382 elif enabled gcc; then
3383     check_cflags -fno-tree-vectorize
3384     check_cflags -Werror=implicit-function-declaration
3385     check_cflags -Werror=missing-prototypes
3386 elif enabled llvm_gcc; then
3387     check_cflags -mllvm -stack-alignment=16
3388 elif enabled clang; then
3389     check_cflags -mllvm -stack-alignment=16
3390     check_cflags -Qunused-arguments
3391 elif enabled armcc; then
3392     # 2523: use of inline assembler is deprecated
3393     add_cflags -W${armcc_opt},--diag_suppress=2523
3394     add_cflags -W${armcc_opt},--diag_suppress=1207
3395     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3396     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3397     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3398     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3399 elif enabled tms470; then
3400     add_cflags -pds=824 -pds=837
3401 elif enabled pathscale; then
3402     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3403 fi
3404
3405 enabled_any $THREADS_LIST      && enable threads
3406
3407 check_deps $CONFIG_LIST       \
3408            $CONFIG_EXTRA      \
3409            $HAVE_LIST         \
3410            $ALL_COMPONENTS    \
3411            $ALL_TESTS         \
3412
3413 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3414
3415 if test $target_os = "haiku"; then
3416     disable memalign
3417     disable posix_memalign
3418 fi
3419
3420 ! enabled_any memalign posix_memalign malloc_aligned &&
3421     enabled_any $need_memalign && enable memalign_hack
3422
3423 echo "install prefix            $prefix"
3424 echo "source path               $source_path"
3425 echo "C compiler                $cc"
3426 echo "ARCH                      $arch ($cpu)"
3427 if test "$build_suffix" != ""; then
3428     echo "build suffix              $build_suffix"
3429 fi
3430 if test "$progs_suffix" != ""; then
3431     echo "progs suffix              $progs_suffix"
3432 fi
3433 if test "$extra_version" != ""; then
3434     echo "version string suffix     $extra_version"
3435 fi
3436 echo "big-endian                ${bigendian-no}"
3437 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3438 if enabled x86; then
3439     echo "${yasmexe}                      ${yasm-no}"
3440     echo "MMX enabled               ${mmx-no}"
3441     echo "MMX2 enabled              ${mmx2-no}"
3442     echo "3DNow! enabled            ${amd3dnow-no}"
3443     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3444     echo "SSE enabled               ${sse-no}"
3445     echo "SSSE3 enabled             ${ssse3-no}"
3446     echo "AVX enabled               ${avx-no}"
3447     echo "CMOV enabled              ${cmov-no}"
3448     echo "CMOV is fast              ${fast_cmov-no}"
3449     echo "EBX available             ${ebx_available-no}"
3450     echo "EBP available             ${ebp_available-no}"
3451 fi
3452 if enabled arm; then
3453     echo "ARMv5TE enabled           ${armv5te-no}"
3454     echo "ARMv6 enabled             ${armv6-no}"
3455     echo "ARMv6T2 enabled           ${armv6t2-no}"
3456     echo "ARM VFP enabled           ${armvfp-no}"
3457     echo "IWMMXT enabled            ${iwmmxt-no}"
3458     echo "NEON enabled              ${neon-no}"
3459 fi
3460 if enabled mips; then
3461     echo "MMI enabled               ${mmi-no}"
3462 fi
3463 if enabled ppc; then
3464     echo "AltiVec enabled           ${altivec-no}"
3465     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3466     echo "dcbzl available           ${dcbzl-no}"
3467 fi
3468 if enabled sparc; then
3469     echo "VIS enabled               ${vis-no}"
3470 fi
3471 echo "debug symbols             ${debug-no}"
3472 echo "strip symbols             ${stripping-no}"
3473 echo "optimize for size         ${small-no}"
3474 echo "optimizations             ${optimizations-no}"
3475 echo "static                    ${static-no}"
3476 echo "shared                    ${shared-no}"
3477 echo "postprocessing support    ${postproc-no}"
3478 echo "new filter support        ${avfilter-no}"
3479 echo "network support           ${network-no}"
3480 echo "threading support         ${thread_type-no}"
3481 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3482 echo "SDL support               ${sdl-no}"
3483 echo "libdxva2 enabled          ${dxva2-no}"
3484 echo "libva enabled             ${vaapi-no}"
3485 echo "libvdpau enabled          ${vdpau-no}"
3486 echo "AVISynth enabled          ${avisynth-no}"
3487 echo "frei0r enabled            ${frei0r-no}"
3488 echo "gnutls enabled            ${gnutls-no}"
3489 echo "libaacplus enabled        ${libaacplus-no}"
3490 echo "libass enabled            ${libass-no}"
3491 echo "libcdio support           ${libcdio-no}"
3492 echo "libcelt enabled           ${libcelt-no}"
3493 echo "libdc1394 support         ${libdc1394-no}"
3494 echo "libdirac enabled          ${libdirac-no}"
3495 echo "libfaac enabled           ${libfaac-no}"
3496 echo "libgsm enabled            ${libgsm-no}"
3497 echo "libmodplug enabled        ${libmodplug-no}"
3498 echo "libmp3lame enabled        ${libmp3lame-no}"
3499 echo "libnut enabled            ${libnut-no}"
3500 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3501 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3502 echo "libopencv support         ${libopencv-no}"
3503 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3504 echo "libpulse enabled          ${libpulse-no}"
3505 echo "librtmp enabled           ${librtmp-no}"
3506 echo "libschroedinger enabled   ${libschroedinger-no}"
3507 echo "libspeex enabled          ${libspeex-no}"
3508 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3509 echo "libtheora enabled         ${libtheora-no}"
3510 echo "libutvideo enabled        ${libutvideo-no}"
3511 echo "libv4l2 enabled           ${libv4l2-no}"
3512 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3513 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3514 echo "libvorbis enabled         ${libvorbis-no}"
3515 echo "libvpx enabled            ${libvpx-no}"
3516 echo "libx264 enabled           ${libx264-no}"
3517 echo "libxavs enabled           ${libxavs-no}"
3518 echo "libxvid enabled           ${libxvid-no}"
3519 echo "openal enabled            ${openal-no}"
3520 echo "openssl enabled           ${openssl-no}"
3521 echo "zlib enabled              ${zlib-no}"
3522 echo "bzlib enabled             ${bzlib-no}"
3523 echo
3524
3525 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3526     echo "Enabled ${type}s:"
3527     eval list=\$$(toupper $type)_LIST
3528     print_enabled '_*' $list | sort | pr -r -3 -t
3529     echo
3530 done
3531
3532 license="LGPL version 2.1 or later"
3533 if enabled nonfree; then
3534     license="nonfree and unredistributable"
3535 elif enabled gplv3; then
3536     license="GPL version 3 or later"
3537 elif enabled lgplv3; then
3538     license="LGPL version 3 or later"
3539 elif enabled gpl; then
3540     license="GPL version 2 or later"
3541 fi
3542
3543 echo "License: $license"
3544
3545 echo "Creating config.mak and config.h..."
3546
3547 test -e Makefile || $ln_s "$source_path/Makefile" .
3548
3549 enabled stripping || strip="echo skipping strip"
3550
3551 config_files="$TMPH config.mak"
3552
3553 cat > config.mak <<EOF
3554 # Automatically generated by configure - do not modify!
3555 ifndef FFMPEG_CONFIG_MAK
3556 FFMPEG_CONFIG_MAK=1
3557 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3558 prefix=$prefix
3559 LIBDIR=\$(DESTDIR)$libdir
3560 SHLIBDIR=\$(DESTDIR)$shlibdir
3561 INCDIR=\$(DESTDIR)$incdir
3562 BINDIR=\$(DESTDIR)$bindir
3563 DATADIR=\$(DESTDIR)$datadir
3564 MANDIR=\$(DESTDIR)$mandir
3565 SRC_PATH=$source_path
3566 ifndef MAIN_MAKEFILE
3567 SRC_PATH:=\$(SRC_PATH:.%=..%)
3568 endif
3569 CC_IDENT=$cc_ident
3570 ARCH=$arch
3571 CC=$cc
3572 CXX=$cxx
3573 AS=$as
3574 LD=$ld
3575 DEPCC=$dep_cc
3576 YASM=$yasmexe
3577 YASMDEP=$yasmexe
3578 AR=$ar
3579 RANLIB=$ranlib
3580 CP=cp -p
3581 LN_S=$ln_s
3582 STRIP=$strip
3583 CPPFLAGS=$CPPFLAGS
3584 CFLAGS=$CFLAGS
3585 CXXFLAGS=$CXXFLAGS
3586 ASFLAGS=$ASFLAGS
3587 AS_O=$CC_O
3588 CC_O=$CC_O
3589 CXX_O=$CXX_O
3590 LDFLAGS=$LDFLAGS
3591 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3592 SHFLAGS=$SHFLAGS
3593 YASMFLAGS=$YASMFLAGS
3594 BUILDSUF=$build_suffix
3595 PROGSSUF=$progs_suffix
3596 FULLNAME=$FULLNAME
3597 LIBPREF=$LIBPREF
3598 LIBSUF=$LIBSUF
3599 LIBNAME=$LIBNAME
3600 SLIBPREF=$SLIBPREF
3601 SLIBSUF=$SLIBSUF
3602 EXESUF=$EXESUF
3603 EXTRA_VERSION=$extra_version
3604 DEPFLAGS=$DEPFLAGS
3605 CCDEP=$CCDEP
3606 CXXDEP=$CXXDEP
3607 ASDEP=$ASDEP
3608 CC_DEPFLAGS=$CC_DEPFLAGS
3609 AS_DEPFLAGS=$AS_DEPFLAGS
3610 HOSTCC=$host_cc
3611 HOSTCFLAGS=$host_cflags
3612 HOSTEXESUF=$HOSTEXESUF
3613 HOSTLDFLAGS=$host_ldflags
3614 HOSTLIBS=$host_libs
3615 TARGET_EXEC=$target_exec
3616 TARGET_PATH=$target_path
3617 SDL_LIBS=$sdl_libs
3618 SDL_CFLAGS=$sdl_cflags
3619 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3620 EXTRALIBS=$extralibs
3621 INSTALL=$install
3622 LIBTARGET=${LIBTARGET}
3623 SLIBNAME=${SLIBNAME}
3624 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3625 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3626 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3627 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3628 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3629 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3630 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3631 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3632 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3633 NOREDZONE_FLAGS=$noredzone_flags
3634 EOF
3635
3636 get_version(){
3637     name=$1
3638     file=$source_path/$2
3639 # This condition will be removed when we stop supporting old libpostproc versions
3640 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3641     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3642     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3643 fi
3644     lcname=$(tolower $name)
3645     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3646     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3647 }
3648
3649 get_version LIBAVCODEC  libavcodec/version.h
3650 get_version LIBAVDEVICE libavdevice/avdevice.h
3651 get_version LIBAVFILTER libavfilter/version.h
3652 get_version LIBAVFORMAT libavformat/version.h
3653 get_version LIBAVUTIL   libavutil/avutil.h
3654 get_version LIBPOSTPROC libpostproc/postprocess.h
3655 get_version LIBSWRESAMPLE libswresample/swresample.h
3656 get_version LIBSWSCALE  libswscale/swscale.h
3657
3658 cat > $TMPH <<EOF
3659 /* Automatically generated by configure - do not modify! */
3660 #ifndef FFMPEG_CONFIG_H
3661 #define FFMPEG_CONFIG_H
3662 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3663 #define FFMPEG_LICENSE "$(c_escape $license)"
3664 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3665 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3666 #define CC_TYPE "$cc_type"
3667 #define CC_VERSION $cc_version
3668 #define restrict $_restrict
3669 #define EXTERN_PREFIX "${extern_prefix}"
3670 #define EXTERN_ASM ${extern_prefix}
3671 #define SLIBSUF "$SLIBSUF"
3672 EOF
3673
3674 test -n "$malloc_prefix" &&
3675     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3676
3677 if enabled small || disabled optimizations; then
3678     echo "#undef  av_always_inline"  >> $TMPH
3679     if enabled small; then
3680         echo "#define av_always_inline inline"  >> $TMPH
3681     else
3682         echo "#define av_always_inline av_unused"  >> $TMPH
3683     fi
3684 fi
3685
3686 if enabled yasm; then
3687     append config_files $TMPASM
3688     printf '' >$TMPASM
3689 fi
3690
3691 print_config ARCH_   "$config_files" $ARCH_LIST
3692 print_config HAVE_   "$config_files" $HAVE_LIST
3693 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3694                                      $CONFIG_EXTRA      \
3695                                      $ALL_COMPONENTS    \
3696
3697 cat >>config.mak <<EOF
3698 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3699 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3700 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3701 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3702 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3703 EOF
3704
3705 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3706 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3707
3708 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3709 cp_if_changed $TMPH config.h
3710 touch .config
3711
3712 enabled yasm && cp_if_changed $TMPASM config.asm
3713
3714 cat > $TMPH <<EOF
3715 /* Generated by ffconf */
3716 #ifndef AVUTIL_AVCONFIG_H
3717 #define AVUTIL_AVCONFIG_H
3718 EOF
3719
3720 test "$postproc_version" != current && cat >> $TMPH <<EOF
3721 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3722 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3723 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3724 EOF
3725
3726 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3727
3728 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3729
3730 cp_if_changed $TMPH libavutil/avconfig.h
3731
3732 test -n "$WARNINGS" && printf "\n$WARNINGS"
3733
3734 # build pkg-config files
3735
3736 pkgconfig_generate(){
3737 name=$1
3738 shortname=${name#lib}${build_suffix}
3739 comment=$2
3740 version=$3
3741 libs=$4
3742 requires=$5
3743 enabled ${name#lib} || return 0
3744 mkdir -p $name
3745 cat <<EOF > $name/$name.pc
3746 prefix=$prefix
3747 exec_prefix=\${prefix}
3748 libdir=$libdir
3749 includedir=$incdir
3750
3751 Name: $name
3752 Description: $comment
3753 Version: $version
3754 Requires: $(enabled shared || echo $requires)
3755 Requires.private: $(enabled shared && echo $requires)
3756 Conflicts:
3757 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3758 Libs.private: $(enabled shared && echo $libs)
3759 Cflags: -I\${includedir}
3760 EOF
3761 cat <<EOF > $name/$name-uninstalled.pc
3762 prefix=
3763 exec_prefix=
3764 libdir=\${pcfiledir}
3765 includedir=${source_path}
3766
3767 Name: $name
3768 Description: $comment
3769 Version: $version
3770 Requires: $requires
3771 Conflicts:
3772 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3773 Cflags: -I\${includedir}
3774 EOF
3775 }
3776
3777 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3778 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3779 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3780 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3781 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3782 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3783 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
3784 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"