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 Help options:
  63   --help                   print this message
  64   --list-decoders          show all available decoders
  65   --list-encoders          show all available encoders
  66   --list-hwaccels          show all available hardware accelerators
  67   --list-demuxers          show all available demuxers
  68   --list-muxers            show all available muxers
  69   --list-parsers           show all available parsers
  70   --list-protocols         show all available protocols
  71   --list-bsfs              show all available bitstream filters
  72   --list-indevs            show all available input devices
  73   --list-outdevs           show all available output devices
  74   --list-filters           show all available filters
  75
  76 Standard options:
  77   --logfile=FILE           log tests and output to FILE [config.log]
  78   --disable-logging        do not log configure debug information
  79   --prefix=PREFIX          install in PREFIX [$prefix]
  80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  82   --libdir=DIR             install libs in DIR [PREFIX/lib]
  83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  84   --incdir=DIR             install includes in DIR [PREFIX/include]
  85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  86
  87 Licensing options:
  88   --enable-gpl             allow use of GPL code, the resulting libs
  89                            and binaries will be under GPL [no]
  90   --enable-version3        upgrade (L)GPL to version 3 [no]
  91   --enable-nonfree         allow use of nonfree code, the resulting libs
  92                            and binaries will be unredistributable [no]
  93
  94 Configuration options:
  95   --disable-static         do not build static libraries [no]
  96   --enable-shared          build shared libraries [no]
  97   --enable-small           optimize for size instead of speed
  98   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101
 102 Documentation options:
 103   --disable-doc            do not build documentation
 104   --disable-htmlpages      do not build HTML documentation pages
 105   --disable-manpages       do not build man documentation pages
 106   --disable-podpages       do not build POD documentation pages
 107   --disable-txtpages       do not build text documentation pages
 108
 109 Component options:
 110   --disable-ffmpeg         disable ffmpeg build
 111   --disable-ffplay         disable ffplay build
 112   --disable-ffprobe        disable ffprobe build
 113   --disable-ffserver       disable ffserver build
 114   --disable-avdevice       disable libavdevice build
 115   --disable-avcodec        disable libavcodec build
 116   --disable-avformat       disable libavformat build
 117   --disable-swresample     disable libswresample build
 118   --disable-swscale        disable libswscale build
 119   --disable-postproc       disable libpostproc build
 120   --disable-avfilter       disable libavfilter build
 121   --enable-avresample      enable libavresample build [no]
 122   --disable-pthreads       disable pthreads [auto]
 123   --disable-w32threads     disable Win32 threads [auto]
 124   --disable-os2threads     disable OS/2 threads [auto]
 125   --enable-x11grab         enable X11 grabbing [no]
 126   --disable-network        disable network support [no]
 127   --disable-dct            disable DCT code
 128   --disable-dwt            disable DWT code
 129   --disable-lsp            disable LSP code
 130   --disable-mdct           disable MDCT code
 131   --disable-rdft           disable RDFT code
 132   --disable-fft            disable FFT code
 133   --enable-dxva2           enable DXVA2 code
 134   --enable-vaapi           enable VAAPI code [autodetect]
 135   --enable-vda             enable VDA code   [autodetect]
 136   --enable-vdpau           enable VDPAU code [autodetect]
 137
 138 Individual component options:
 139   --disable-everything     disable all components listed below
 140   --disable-encoder=NAME   disable encoder NAME
 141   --enable-encoder=NAME    enable encoder NAME
 142   --disable-encoders       disable all encoders
 143   --disable-decoder=NAME   disable decoder NAME
 144   --enable-decoder=NAME    enable decoder NAME
 145   --disable-decoders       disable all decoders
 146   --disable-hwaccel=NAME   disable hwaccel NAME
 147   --enable-hwaccel=NAME    enable hwaccel NAME
 148   --disable-hwaccels       disable all hwaccels
 149   --disable-muxer=NAME     disable muxer NAME
 150   --enable-muxer=NAME      enable muxer NAME
 151   --disable-muxers         disable all muxers
 152   --disable-demuxer=NAME   disable demuxer NAME
 153   --enable-demuxer=NAME    enable demuxer NAME
 154   --disable-demuxers       disable all demuxers
 155   --enable-parser=NAME     enable parser NAME
 156   --disable-parser=NAME    disable parser NAME
 157   --disable-parsers        disable all parsers
 158   --enable-bsf=NAME        enable bitstream filter NAME
 159   --disable-bsf=NAME       disable bitstream filter NAME
 160   --disable-bsfs           disable all bitstream filters
 161   --enable-protocol=NAME   enable protocol NAME
 162   --disable-protocol=NAME  disable protocol NAME
 163   --disable-protocols      disable all protocols
 164   --enable-indev=NAME      enable input device NAME
 165   --disable-indev=NAME     disable input device NAME
 166   --disable-indevs         disable input devices
 167   --enable-outdev=NAME     enable output device NAME
 168   --disable-outdev=NAME    disable output device NAME
 169   --disable-outdevs        disable output devices
 170   --disable-devices        disable all devices
 171   --enable-filter=NAME     enable filter NAME
 172   --disable-filter=NAME    disable filter NAME
 173   --disable-filters        disable all filters
 174
 175 External library support:
 176   --enable-avisynth        enable reading of AVISynth script files [no]
 177   --enable-bzlib           enable bzlib [autodetect]
 178   --enable-fontconfig      enable fontconfig
 179   --enable-frei0r          enable frei0r video filtering
 180   --enable-gnutls          enable gnutls [no]
 181   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 182   --enable-libass          enable libass subtitles rendering [no]
 183   --enable-libbluray       enable BluRay reading using libbluray [no]
 184   --enable-libcaca         enable textual display using libcaca
 185   --enable-libcelt         enable CELT decoding via libcelt [no]
 186   --enable-libcdio         enable audio CD grabbing with libcdio
 187   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 188                            and libraw1394 [no]
 189   --enable-libfaac         enable AAC encoding via libfaac [no]
 190   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 191   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 192   --enable-libfreetype     enable libfreetype [no]
 193   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 194   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 195   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 196   --enable-libmodplug      enable ModPlug via libmodplug [no]
 197   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 198   --enable-libnut          enable NUT (de)muxing via libnut,
 199                            native (de)muxer exists [no]
 200   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 201   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 202   --enable-libopencv       enable video filtering via libopencv [no]
 203   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 204   --enable-libopus         enable Opus decoding via libopus [no]
 205   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 206   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 207   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 208   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 209   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 210   --enable-libtheora       enable Theora encoding via libtheora [no]
 211   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 212   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 213   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 214   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 215   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 216   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 217                            native implementation exists [no]
 218   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
 219   --enable-libx264         enable H.264 encoding via x264 [no]
 220   --enable-libxavs         enable AVS encoding via xavs [no]
 221   --enable-libxvid         enable Xvid encoding via xvidcore,
 222                            native MPEG-4/Xvid encoder exists [no]
 223   --enable-openal          enable OpenAL 1.1 capture support [no]
 224   --enable-openssl         enable openssl [no]
 225   --enable-zlib            enable zlib [autodetect]
 226
 227 Advanced options (experts only):
 228   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 229   --enable-cross-compile   assume a cross-compiler is used
 230   --sysroot=PATH           root of cross-build tree
 231   --sysinclude=PATH        location of cross-build system headers
 232   --target-os=OS           compiler targets OS [$target_os]
 233   --target-exec=CMD        command to run executables on target
 234   --target-path=DIR        path to view of build directory on target
 235   --toolchain=NAME         set tool defaults according to NAME
 236   --nm=NM                  use nm tool NM [$nm_default]
 237   --ar=AR                  use archive tool AR [$ar_default]
 238   --as=AS                  use assembler AS [$as_default]
 239   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 240   --cc=CC                  use C compiler CC [$cc_default]
 241   --cxx=CXX                use C compiler CXX [$cxx_default]
 242   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 243   --ld=LD                  use linker LD [$ld_default]
 244   --host-cc=HOSTCC         use host C compiler HOSTCC
 245   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 246   --host-ld=HOSTLD         use host linker HOSTLD
 247   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 248   --host-libs=HLIBS        use libs HLIBS when linking for host
 249   --host-os=OS             compiler host OS [$target_os]
 250   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 251   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 252   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 253   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 254   --extra-version=STRING   version string suffix []
 255   --optflags=OPTFLAGS      override optimization-related compiler flags
 256   --build-suffix=SUFFIX    library name suffix []
 257   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 258   --progs-suffix=SUFFIX    program name suffix []
 259   --arch=ARCH              select architecture [$arch]
 260   --cpu=CPU                select the minimum required CPU (affects
 261                            instruction selection, may crash on older CPUs)
 262   --enable-pic             build position-independent code
 263   --enable-sram            allow use of on-chip SRAM
 264   --enable-thumb           compile for Thumb instruction set
 265   --disable-symver         disable symbol versioning
 266   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 267   --disable-safe-bitstream-reader
 268                            disable buffer boundary checking in bitreaders
 269                            (faster, but may crash)
 270   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 271
 272 Optimization options (experts only):
 273   --disable-asm            disable all assembler optimizations
 274   --disable-altivec        disable AltiVec optimizations
 275   --disable-amd3dnow       disable 3DNow! optimizations
 276   --disable-amd3dnowext    disable 3DNow! extended optimizations
 277   --disable-mmx            disable MMX optimizations
 278   --disable-mmxext         disable MMXEXT optimizations
 279   --disable-sse            disable SSE optimizations
 280   --disable-sse2           disable SSE2 optimizations
 281   --disable-sse3           disable SSE3 optimizations
 282   --disable-ssse3          disable SSSE3 optimizations
 283   --disable-sse4           disable SSE4 optimizations
 284   --disable-sse42          disable SSE4.2 optimizations
 285   --disable-avx            disable AVX optimizations
 286   --disable-fma4           disable FMA4 optimizations
 287   --disable-armv5te        disable armv5te optimizations
 288   --disable-armv6          disable armv6 optimizations
 289   --disable-armv6t2        disable armv6t2 optimizations
 290   --disable-armvfp         disable ARM VFP optimizations
 291   --disable-mmi            disable MMI optimizations
 292   --disable-neon           disable NEON optimizations
 293   --disable-vis            disable VIS optimizations
 294   --disable-inline-asm     disable use of inline assembler
 295   --disable-yasm           disable use of yasm assembler
 296   --disable-mips32r2       disable MIPS32R2 optimizations
 297   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 298   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 299   --disable-mipsfpu        disable floating point MIPS optimizations
 300   --disable-fast-unaligned consider unaligned accesses slow
 301   --postproc-version=V     build libpostproc version V.
 302                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
 303
 304 Developer options (useful when working on FFmpeg itself):
 305   --enable-coverage        build with test coverage instrumentation
 306   --disable-debug          disable debugging symbols
 307   --enable-debug=LEVEL     set the debug level [$debuglevel]
 308   --disable-optimizations  disable compiler optimizations
 309   --enable-extra-warnings  enable more compiler warnings
 310   --disable-stripping      disable stripping of executables and shared libraries
 311   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 312                            2 causes a slowdown at runtime.
 313   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 314   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 315                            leaks and errors, using the specified valgrind binary.
 316                            Cannot be combined with --target-exec
 317   --samples=PATH           location of test samples for FATE, if not set use
 318                            \$FATE_SAMPLES at make invocation time.
 319   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 320                            should be used only for debugging purposes)
 321   --enable-random          randomly enable/disable components
 322   --disable-random
 323   --enable-random=LIST     randomly enable/disable specific components or
 324   --disable-random=LIST    component groups. LIST is a comma-separated list
 325                            of NAME[:PROB] entries where NAME is a component
 326                            (group) and PROB the probability associated with
 327                            NAME (default 0.5).
 328   --random-seed=VALUE      seed value for --enable/disable-random
 329
 330 NOTE: Object files are built at the place where configure is launched.
 331 EOF
 332   exit 0
 333 }
 334
 335 quotes='""'
 336
 337 log(){
 338     echo "$@" >> $logfile
 339 }
 340
 341 log_file(){
 342     log BEGIN $1
 343     pr -n -t $1 >> $logfile
 344     log END $1
 345 }
 346
 347 echolog(){
 348     log "$@"
 349     echo "$@"
 350 }
 351
 352 warn(){
 353     log "WARNING: $*"
 354     WARNINGS="${WARNINGS}WARNING: $*\n"
 355 }
 356
 357 die(){
 358     echolog "$@"
 359     cat <<EOF
 360
 361 If you think configure made a mistake, make sure you are using the latest
 362 version from Git.  If the latest version fails, report the problem to the
 363 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 364 EOF
 365     if disabled logging; then
 366         cat <<EOF
 367 Rerun configure with logging enabled (do not use --disable-logging), and
 368 include the log this produces with your report.
 369 EOF
 370     else
 371         cat <<EOF
 372 Include the log file "$logfile" produced by configure as this will help
 373 solving the problem.
 374 EOF
 375     fi
 376     exit 1
 377 }
 378
 379 # Avoid locale weirdness, besides we really just want to translate ASCII.
 380 toupper(){
 381     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 382 }
 383
 384 tolower(){
 385     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 386 }
 387
 388 c_escape(){
 389     echo "$*" | sed 's/["\\]/\\\0/g'
 390 }
 391
 392 sh_quote(){
 393     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 394     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 395     echo "$v"
 396 }
 397
 398 cleanws(){
 399     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 400 }
 401
 402 filter(){
 403     pat=$1
 404     shift
 405     for v; do
 406         eval "case $v in $pat) echo $v ;; esac"
 407     done
 408 }
 409
 410 filter_out(){
 411     pat=$1
 412     shift
 413     for v; do
 414         eval "case $v in $pat) ;; *) echo $v ;; esac"
 415     done
 416 }
 417
 418 map(){
 419     m=$1
 420     shift
 421     for v; do eval $m; done
 422 }
 423
 424 add_suffix(){
 425     suffix=$1
 426     shift
 427     for v; do echo ${v}${suffix}; done
 428 }
 429
 430 set_all(){
 431     value=$1
 432     shift
 433     for var in $*; do
 434         eval $var=$value
 435     done
 436 }
 437
 438 set_weak(){
 439     value=$1
 440     shift
 441     for var; do
 442         eval : \${$var:=$value}
 443     done
 444 }
 445
 446 set_safe(){
 447     var=$1
 448     shift
 449     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 450 }
 451
 452 get_safe(){
 453     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 454 }
 455
 456 pushvar(){
 457     for var in $*; do
 458         eval level=\${${var}_level:=0}
 459         eval ${var}_${level}="\$$var"
 460         eval ${var}_level=$(($level+1))
 461     done
 462 }
 463
 464 popvar(){
 465     for var in $*; do
 466         eval level=\${${var}_level:-0}
 467         test $level = 0 && continue
 468         eval level=$(($level-1))
 469         eval $var="\${${var}_${level}}"
 470         eval ${var}_level=$level
 471         eval unset ${var}_${level}
 472     done
 473 }
 474
 475 enable(){
 476     set_all yes $*
 477 }
 478
 479 disable(){
 480     set_all no $*
 481 }
 482
 483 enable_weak(){
 484     set_weak yes $*
 485 }
 486
 487 disable_weak(){
 488     set_weak no $*
 489 }
 490
 491 enable_safe(){
 492     for var; do
 493         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 494     done
 495 }
 496
 497 disable_safe(){
 498     for var; do
 499         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 500     done
 501 }
 502
 503 do_enable_deep(){
 504     for var; do
 505         enabled $var && continue
 506         eval sel="\$${var}_select"
 507         eval sgs="\$${var}_suggest"
 508         pushvar var sgs
 509         enable_deep $sel
 510         popvar sgs
 511         enable_deep_weak $sgs
 512         popvar var
 513     done
 514 }
 515
 516 enable_deep(){
 517     do_enable_deep $*
 518     enable $*
 519 }
 520
 521 enable_deep_weak(){
 522     do_enable_deep $*
 523     enable_weak $*
 524 }
 525
 526 enabled(){
 527     test "${1#!}" = "$1" && op== || op=!=
 528     eval test "x\$${1#!}" $op "xyes"
 529 }
 530
 531 disabled(){
 532     test "${1#!}" = "$1" && op== || op=!=
 533     eval test "x\$${1#!}" $op "xno"
 534 }
 535
 536 enabled_all(){
 537     for opt; do
 538         enabled $opt || return 1
 539     done
 540 }
 541
 542 disabled_all(){
 543     for opt; do
 544         disabled $opt || return 1
 545     done
 546 }
 547
 548 enabled_any(){
 549     for opt; do
 550         enabled $opt && return 0
 551     done
 552 }
 553
 554 disabled_any(){
 555     for opt; do
 556         disabled $opt && return 0
 557     done
 558     return 1
 559 }
 560
 561 set_default(){
 562     for opt; do
 563         eval : \${$opt:=\$${opt}_default}
 564     done
 565 }
 566
 567 is_in(){
 568     value=$1
 569     shift
 570     for var in $*; do
 571         [ $var = $value ] && return 0
 572     done
 573     return 1
 574 }
 575
 576 check_deps(){
 577     for cfg; do
 578         cfg="${cfg#!}"
 579         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 580         disabled ${cfg}_checking && continue
 581         enable ${cfg}_checking
 582
 583         eval dep_all="\$${cfg}_deps"
 584         eval dep_any="\$${cfg}_deps_any"
 585         eval dep_sel="\$${cfg}_select"
 586         eval dep_sgs="\$${cfg}_suggest"
 587         eval dep_ifa="\$${cfg}_if"
 588         eval dep_ifn="\$${cfg}_if_any"
 589
 590         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 591         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 592         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 593
 594         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 595         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 596         enabled_all  $dep_all || disable $cfg
 597         enabled_any  $dep_any || disable $cfg
 598         disabled_any $dep_sel && disable $cfg
 599
 600         if enabled $cfg; then
 601             eval dep_extralibs="\$${cfg}_extralibs"
 602             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 603             enable_deep $dep_sel
 604             enable_deep_weak $dep_sgs
 605         fi
 606
 607         disable ${cfg}_checking
 608     done
 609 }
 610
 611 print_config_h(){
 612     enabled $1 && v=1 || v=0
 613     echo "#define $2 $v"
 614 }
 615
 616 print_config_mak(){
 617     enabled $1 && v= || v=!
 618     echo "$v$2=yes"
 619 }
 620
 621 print_config_asm(){
 622     enabled $1 && v=1 || v=0
 623     echo "%define $2 $v"
 624 }
 625
 626 print_config(){
 627     pfx=$1
 628     files=$2
 629     shift 2
 630     for cfg; do
 631         ucname="$(toupper $cfg)"
 632         for f in $files; do
 633             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 634         done
 635     done
 636 }
 637
 638 print_enabled(){
 639     test "$1" = -n && end=" " && shift || end="\n"
 640     suf=$1
 641     shift
 642     for v; do
 643         enabled $v && printf "%s$end" ${v%$suf};
 644     done
 645 }
 646
 647 append(){
 648     var=$1
 649     shift
 650     eval "$var=\"\$$var $*\""
 651 }
 652
 653 prepend(){
 654     var=$1
 655     shift
 656     eval "$var=\"$* \$$var\""
 657 }
 658
 659 add_cppflags(){
 660     append CPPFLAGS "$@"
 661 }
 662
 663 add_cflags(){
 664     append CFLAGS $($cflags_filter "$@")
 665 }
 666
 667 add_cxxflags(){
 668     append CXXFLAGS $($cflags_filter "$@")
 669 }
 670
 671 add_asflags(){
 672     append ASFLAGS $($asflags_filter "$@")
 673 }
 674
 675 add_ldflags(){
 676     append LDFLAGS $($ldflags_filter "$@")
 677 }
 678
 679 add_extralibs(){
 680     prepend extralibs $($ldflags_filter "$@")
 681 }
 682
 683 add_host_cflags(){
 684     append host_cflags $($host_cflags_filter "$@")
 685 }
 686
 687 add_host_ldflags(){
 688     append host_ldflags $($host_ldflags_filter "$@")
 689 }
 690
 691 check_cmd(){
 692     log "$@"
 693     "$@" >> $logfile 2>&1
 694 }
 695
 696 cc_o(){
 697     eval printf '%s\\n' $CC_O
 698 }
 699
 700 cc_e(){
 701     eval printf '%s\\n' $CC_E
 702 }
 703
 704 check_cc(){
 705     log check_cc "$@"
 706     cat > $TMPC
 707     log_file $TMPC
 708     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 709 }
 710
 711 check_cxx(){
 712     log check_cxx "$@"
 713     cat > $TMPCPP
 714     log_file $TMPCPP
 715     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 716 }
 717
 718 check_cpp(){
 719     log check_cpp "$@"
 720     cat > $TMPC
 721     log_file $TMPC
 722     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 723 }
 724
 725 as_o(){
 726     eval printf '%s\\n' $AS_O
 727 }
 728
 729 check_as(){
 730     log check_as "$@"
 731     cat > $TMPC
 732     log_file $TMPC
 733     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPC
 734 }
 735
 736 check_inline_asm(){
 737     log check_inline_asm "$@"
 738     name="$1"
 739     code="$2"
 740     shift 2
 741     disable $name
 742     check_as "$@" <<EOF && enable $name
 743 void foo(void){ __asm__ volatile($code); }
 744 EOF
 745 }
 746
 747 check_yasm(){
 748     log check_yasm "$@"
 749     echo "$1" > $TMPS
 750     log_file $TMPS
 751     shift 1
 752     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 753 }
 754
 755 ld_o(){
 756     eval printf '%s\\n' $LD_O
 757 }
 758
 759 check_ld(){
 760     log check_ld "$@"
 761     type=$1
 762     shift 1
 763     flags=''
 764     libs=''
 765     for f; do
 766         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 767     done
 768     check_$type $($cflags_filter $flags) || return
 769     flags=$($ldflags_filter $flags)
 770     libs=$($ldflags_filter $libs)
 771     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 772 }
 773
 774 check_code(){
 775     log check_code "$@"
 776     check=$1
 777     headers=$2
 778     code=$3
 779     shift 3
 780     {
 781         for hdr in $headers; do
 782             echo "#include <$hdr>"
 783         done
 784         echo "int main(void) { $code; return 0; }"
 785     } | check_$check "$@"
 786 }
 787
 788 check_cppflags(){
 789     log check_cppflags "$@"
 790     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 791 int x;
 792 EOF
 793 }
 794
 795 check_cflags(){
 796     log check_cflags "$@"
 797     set -- $($cflags_filter "$@")
 798     check_cc "$@" <<EOF && append CFLAGS "$@"
 799 int x;
 800 EOF
 801 }
 802
 803 check_cxxflags(){
 804     log check_cxxflags "$@"
 805     set -- $($cflags_filter "$@")
 806     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 807 int x;
 808 EOF
 809 }
 810
 811 test_ldflags(){
 812     log test_ldflags "$@"
 813     check_ld "cc" "$@" <<EOF
 814 int main(void){ return 0; }
 815 EOF
 816 }
 817
 818 check_ldflags(){
 819     log check_ldflags "$@"
 820     test_ldflags "$@" && add_ldflags "$@"
 821 }
 822
 823 check_header(){
 824     log check_header "$@"
 825     header=$1
 826     shift
 827     disable_safe $header
 828     check_cpp "$@" <<EOF && enable_safe $header
 829 #include <$header>
 830 int x;
 831 EOF
 832 }
 833
 834 check_func(){
 835     log check_func "$@"
 836     func=$1
 837     shift
 838     disable $func
 839     check_ld "cc" "$@" <<EOF && enable $func
 840 extern int $func();
 841 int main(void){ $func(); }
 842 EOF
 843 }
 844
 845 check_mathfunc(){
 846     log check_mathfunc "$@"
 847     func=$1
 848     shift
 849     disable $func
 850     check_ld "cc" "$@" <<EOF && enable $func
 851 #include <math.h>
 852 float foo(float f) { return $func(f); }
 853 int main(void){ return (int) foo; }
 854 EOF
 855 }
 856
 857 check_func_headers(){
 858     log check_func_headers "$@"
 859     headers=$1
 860     funcs=$2
 861     shift 2
 862     {
 863         for hdr in $headers; do
 864             echo "#include <$hdr>"
 865         done
 866         for func in $funcs; do
 867             echo "long check_$func(void) { return (long) $func; }"
 868         done
 869         echo "int main(void) { return 0; }"
 870     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 871 }
 872
 873 check_class_headers_cpp(){
 874     log check_class_headers_cpp "$@"
 875     headers=$1
 876     classes=$2
 877     shift 2
 878     {
 879         for hdr in $headers; do
 880             echo "#include <$hdr>"
 881         done
 882         echo "int main(void) { "
 883         i=1
 884         for class in $classes; do
 885             echo "$class obj$i;"
 886             i=$(expr $i + 1)
 887         done
 888         echo "return 0; }"
 889     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 890 }
 891
 892 check_cpp_condition(){
 893     log check_cpp_condition "$@"
 894     header=$1
 895     condition=$2
 896     shift 2
 897     check_cpp "$@" <<EOF
 898 #include <$header>
 899 #if !($condition)
 900 #error "unsatisfied condition: $condition"
 901 #endif
 902 EOF
 903 }
 904
 905 check_lib(){
 906     log check_lib "$@"
 907     header="$1"
 908     func="$2"
 909     shift 2
 910     check_header $header && check_func $func "$@" && add_extralibs "$@"
 911 }
 912
 913 check_lib2(){
 914     log check_lib2 "$@"
 915     headers="$1"
 916     funcs="$2"
 917     shift 2
 918     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 919 }
 920
 921 check_lib_cpp(){
 922     log check_lib_cpp "$@"
 923     headers="$1"
 924     classes="$2"
 925     shift 2
 926     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 927 }
 928
 929 check_pkg_config(){
 930     log check_pkg_config "$@"
 931     pkg="$1"
 932     headers="$2"
 933     funcs="$3"
 934     shift 3
 935     $pkg_config --exists $pkg 2>/dev/null || return
 936     pkg_cflags=$($pkg_config --cflags $pkg)
 937     pkg_libs=$($pkg_config --libs $pkg)
 938     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 939         set_safe ${pkg}_cflags $pkg_cflags   &&
 940         set_safe ${pkg}_libs   $pkg_libs
 941 }
 942
 943 check_exec(){
 944     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 945 }
 946
 947 check_exec_crash(){
 948     code=$(cat)
 949
 950     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 951     # are safe but may not be available everywhere.  Thus we use
 952     # raise(SIGTERM) instead.  The check is run in a subshell so we
 953     # can redirect the "Terminated" message from the shell.  SIGBUS
 954     # is not defined by standard C so it is used conditionally.
 955
 956     (check_exec "$@") >> $logfile 2>&1 <<EOF
 957 #include <signal.h>
 958 static void sighandler(int sig){
 959     raise(SIGTERM);
 960 }
 961 int func(void){
 962     $code
 963 }
 964 int (*func_ptr)(void) = func;
 965 int main(void){
 966     signal(SIGILL, sighandler);
 967     signal(SIGFPE, sighandler);
 968     signal(SIGSEGV, sighandler);
 969 #ifdef SIGBUS
 970     signal(SIGBUS, sighandler);
 971 #endif
 972     return func_ptr();
 973 }
 974 EOF
 975 }
 976
 977 check_type(){
 978     log check_type "$@"
 979     headers=$1
 980     type=$2
 981     shift 2
 982     disable_safe "$type"
 983     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
 984 }
 985
 986 check_struct(){
 987     log check_type "$@"
 988     headers=$1
 989     struct=$2
 990     member=$3
 991     shift 3
 992     disable_safe "${struct}_${member}"
 993     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
 994         enable_safe "${struct}_${member}"
 995 }
 996
 997 require(){
 998     name="$1"
 999     header="$2"
1000     func="$3"
1001     shift 3
1002     check_lib $header $func "$@" || die "ERROR: $name not found"
1003 }
1004
1005 require2(){
1006     name="$1"
1007     headers="$2"
1008     func="$3"
1009     shift 3
1010     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1011 }
1012
1013 require_cpp(){
1014     name="$1"
1015     headers="$2"
1016     classes="$3"
1017     shift 3
1018     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1019 }
1020
1021 require_pkg_config(){
1022     pkg="$1"
1023     check_pkg_config "$@" || die "ERROR: $pkg not found"
1024     add_cflags    $(get_safe ${pkg}_cflags)
1025     add_extralibs $(get_safe ${pkg}_libs)
1026 }
1027
1028 hostcc_o(){
1029     eval printf '%s\\n' $HOSTCC_O
1030 }
1031
1032 check_host_cc(){
1033     log check_host_cc "$@"
1034     cat > $TMPC
1035     log_file $TMPC
1036     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1037 }
1038
1039 check_host_cflags(){
1040     log check_host_cflags "$@"
1041     set -- $($host_cflags_filter "$@")
1042     check_host_cc "$@" <<EOF && append host_cflags "$@"
1043 int x;
1044 EOF
1045 }
1046
1047 apply(){
1048     file=$1
1049     shift
1050     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1051 }
1052
1053 cp_if_changed(){
1054     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1055     mkdir -p "$(dirname $2)"
1056     cp -f "$1" "$2"
1057 }
1058
1059 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1060 # system-dependent things.
1061
1062 COMPONENT_LIST="
1063     bsfs
1064     decoders
1065     demuxers
1066     encoders
1067     filters
1068     hwaccels
1069     indevs
1070     muxers
1071     outdevs
1072     parsers
1073     protocols
1074 "
1075
1076 DOCUMENT_LIST="
1077     doc
1078     htmlpages
1079     manpages
1080     podpages
1081     txtpages
1082 "
1083
1084 PROGRAM_LIST="
1085     ffplay
1086     ffprobe
1087     ffserver
1088     ffmpeg
1089 "
1090
1091 CONFIG_LIST="
1092     $COMPONENT_LIST
1093     $DOCUMENT_LIST
1094     $PROGRAM_LIST
1095     avcodec
1096     avdevice
1097     avfilter
1098     avformat
1099     avresample
1100     avisynth
1101     bzlib
1102     crystalhd
1103     dct
1104     dwt
1105     dxva2
1106     fast_unaligned
1107     fft
1108     fontconfig
1109     frei0r
1110     gnutls
1111     gpl
1112     gray
1113     hardcoded_tables
1114     incompatible_fork_abi
1115     libaacplus
1116     libass
1117     libbluray
1118     libcaca
1119     libcdio
1120     libcelt
1121     libdc1394
1122     libfaac
1123     libfdk_aac
1124     libflite
1125     libfreetype
1126     libgsm
1127     libiec61883
1128     libilbc
1129     libmodplug
1130     libmp3lame
1131     libnut
1132     libopencore_amrnb
1133     libopencore_amrwb
1134     libopencv
1135     libopenjpeg
1136     libopus
1137     libpulse
1138     librtmp
1139     libschroedinger
1140     libspeex
1141     libstagefright_h264
1142     libtheora
1143     libtwolame
1144     libutvideo
1145     libv4l2
1146     libvo_aacenc
1147     libvo_amrwbenc
1148     libvorbis
1149     libvpx
1150     libx264
1151     libxavs
1152     libxvid
1153     lsp
1154     mdct
1155     memalign_hack
1156     memory_poisoning
1157     network
1158     nonfree
1159     openal
1160     openssl
1161     pic
1162     postproc
1163     rdft
1164     runtime_cpudetect
1165     safe_bitstream_reader
1166     shared
1167     small
1168     sram
1169     static
1170     swresample
1171     swscale
1172     swscale_alpha
1173     thumb
1174     vaapi
1175     vda
1176     vdpau
1177     version3
1178     xmm_clobber_test
1179     x11grab
1180     zlib
1181 "
1182
1183 THREADS_LIST='
1184     pthreads
1185     w32threads
1186     os2threads
1187 '
1188
1189 ARCH_LIST='
1190     alpha
1191     arm
1192     avr32
1193     avr32_ap
1194     avr32_uc
1195     bfin
1196     ia64
1197     m68k
1198     mips
1199     mips64
1200     parisc
1201     ppc
1202     ppc64
1203     s390
1204     sh4
1205     sparc
1206     sparc64
1207     tomi
1208     x86
1209     x86_32
1210     x86_64
1211 '
1212
1213 ARCH_EXT_LIST_X86='
1214     amd3dnow
1215     amd3dnowext
1216     avx
1217     fma4
1218     mmx
1219     mmxext
1220     sse
1221     sse2
1222     sse3
1223     sse4
1224     sse42
1225     ssse3
1226 '
1227
1228 ARCH_EXT_LIST="
1229     $ARCH_EXT_LIST_X86
1230     altivec
1231     armv5te
1232     armv6
1233     armv6t2
1234     armvfp
1235     mmi
1236     neon
1237     ppc4xx
1238     vfpv3
1239     vis
1240     mipsfpu
1241     mips32r2
1242     mipsdspr1
1243     mipsdspr2
1244 "
1245
1246 HAVE_LIST_PUB='
1247     bigendian
1248     fast_unaligned
1249     incompatible_fork_abi
1250 '
1251
1252 HAVE_LIST="
1253     $ARCH_EXT_LIST
1254     $(add_suffix _external $ARCH_EXT_LIST)
1255     $(add_suffix _inline   $ARCH_EXT_LIST)
1256     $HAVE_LIST_PUB
1257     $THREADS_LIST
1258     aligned_malloc
1259     aligned_stack
1260     alsa_asoundlib_h
1261     altivec_h
1262     arpa_inet_h
1263     asm_mod_q
1264     asm_mod_y
1265     asm_types_h
1266     attribute_may_alias
1267     attribute_packed
1268     broken_snprintf
1269     cbrtf
1270     clock_gettime
1271     closesocket
1272     cmov
1273     cpuid
1274     cpunop
1275     dcbzl
1276     dev_bktr_ioctl_bt848_h
1277     dev_bktr_ioctl_meteor_h
1278     dev_ic_bt8xx_h
1279     dev_video_bktr_ioctl_bt848_h
1280     dev_video_meteor_ioctl_meteor_h
1281     direct_h
1282     dlfcn_h
1283     dlopen
1284     dos_paths
1285     dxva_h
1286     ebp_available
1287     ebx_available
1288     exp2
1289     exp2f
1290     fast_64bit
1291     fast_clz
1292     fast_cmov
1293     fcntl
1294     fork
1295     getaddrinfo
1296     gethrtime
1297     getopt
1298     GetProcessAffinityMask
1299     GetProcessMemoryInfo
1300     GetProcessTimes
1301     GetSystemTimeAsFileTime
1302     getrusage
1303     gettimeofday
1304     glob
1305     gnu_as
1306     ibm_asm
1307     inet_aton
1308     inline_asm
1309     io_h
1310     isatty
1311     isinf
1312     isnan
1313     jack_port_get_latency_range
1314     kbhit
1315     ldbrx
1316     libdc1394_1
1317     libdc1394_2
1318     llrint
1319     llrintf
1320     local_aligned_16
1321     local_aligned_8
1322     localtime_r
1323     log2
1324     log2f
1325     loongson
1326     lrint
1327     lrintf
1328     lzo1x_999_compress
1329     machine_ioctl_bt848_h
1330     machine_ioctl_meteor_h
1331     makeinfo
1332     malloc_h
1333     MapViewOfFile
1334     memalign
1335     mkstemp
1336     mm_empty
1337     mmap
1338     msvcrt
1339     nanosleep
1340     PeekNamedPipe
1341     perl
1342     pod2man
1343     poll_h
1344     posix_memalign
1345     pthread_cancel
1346     rdtsc
1347     rint
1348     round
1349     roundf
1350     rweflags
1351     sched_getaffinity
1352     sdl
1353     sdl_video_size
1354     setmode
1355     setrlimit
1356     Sleep
1357     sndio_h
1358     socklen_t
1359     soundcard_h
1360     strerror_r
1361     struct_addrinfo
1362     struct_group_source_req
1363     struct_ip_mreq_source
1364     struct_ipv6_mreq
1365     struct_pollfd
1366     struct_rusage_ru_maxrss
1367     struct_sctp_event_subscribe
1368     struct_sockaddr_in6
1369     struct_sockaddr_sa_len
1370     struct_sockaddr_storage
1371     struct_v4l2_frmivalenum_discrete
1372     symver
1373     symver_asm_label
1374     symver_gnu_asm
1375     sysconf
1376     sysctl
1377     sys_mman_h
1378     sys_param_h
1379     sys_resource_h
1380     sys_select_h
1381     sys_soundcard_h
1382     sys_time_h
1383     sys_videoio_h
1384     termios_h
1385     texi2html
1386     threads
1387     trunc
1388     truncf
1389     unistd_h
1390     usleep
1391     vfp_args
1392     VirtualAlloc
1393     windows_h
1394     winsock2_h
1395     xform_asm
1396     xgetbv
1397     xmm_clobbers
1398     yasm
1399 "
1400
1401 # options emitted with CONFIG_ prefix but not available on command line
1402 CONFIG_EXTRA="
1403     aandcttables
1404     ac3dsp
1405     avutil
1406     error_resilience
1407     gcrypt
1408     golomb
1409     gplv3
1410     h264chroma
1411     h264dsp
1412     h264pred
1413     h264qpel
1414     huffman
1415     lgplv3
1416     lpc
1417     mpegaudiodsp
1418     mpegvideo
1419     mpegvideoenc
1420     nettle
1421     rangecoder
1422     rtpdec
1423     sinewin
1424     vp3dsp
1425 "
1426
1427 CMDLINE_SELECT="
1428     $ARCH_EXT_LIST
1429     $CONFIG_LIST
1430     $THREADS_LIST
1431     asm
1432     coverage
1433     cross_compile
1434     debug
1435     extra_warnings
1436     inline_asm
1437     logging
1438     optimizations
1439     stripping
1440     symver
1441     yasm
1442 "
1443
1444 PATHS_LIST='
1445     bindir
1446     datadir
1447     incdir
1448     libdir
1449     mandir
1450     prefix
1451     shlibdir
1452 '
1453
1454 CMDLINE_SET="
1455     $PATHS_LIST
1456     ar
1457     arch
1458     as
1459     assert_level
1460     build_suffix
1461     cc
1462     cpu
1463     cross_prefix
1464     cxx
1465     dep_cc
1466     extra_version
1467     host_cc
1468     host_cflags
1469     host_ld
1470     host_ldflags
1471     host_libs
1472     host_os
1473     install
1474     ld
1475     logfile
1476     malloc_prefix
1477     nm
1478     optflags
1479     pkg_config
1480     postproc_version
1481     progs_suffix
1482     random_seed
1483     samples
1484     strip
1485     sysinclude
1486     sysroot
1487     target_exec
1488     target_os
1489     target_path
1490     toolchain
1491     valgrind
1492     yasmexe
1493 "
1494
1495 CMDLINE_APPEND="
1496     extra_cflags
1497     extra_cxxflags
1498 "
1499
1500 # code dependency declarations
1501
1502 # architecture extensions
1503
1504 armv5te_deps="arm"
1505 armv6_deps="arm"
1506 armv6t2_deps="arm"
1507 armvfp_deps="arm"
1508 neon_deps="arm"
1509 vfpv3_deps="armvfp"
1510
1511 mipsfpu_deps="mips"
1512 mips32r2_deps="mips"
1513 mipsdspr1_deps="mips"
1514 mipsdspr2_deps="mips"
1515 mmi_deps="mips"
1516
1517 altivec_deps="ppc"
1518 ppc4xx_deps="ppc"
1519
1520 vis_deps="sparc"
1521
1522 x86_64_suggest="cmov fast_cmov"
1523
1524 amd3dnow_deps="mmx"
1525 amd3dnowext_deps="amd3dnow"
1526 mmx_deps="x86"
1527 mmxext_deps="mmx"
1528 sse_deps="mmxext"
1529 sse2_deps="sse"
1530 sse3_deps="sse2"
1531 ssse3_deps="sse3"
1532 sse4_deps="ssse3"
1533 sse42_deps="sse4"
1534 avx_deps="sse42"
1535 fma4_deps="avx"
1536
1537 mmx_external_deps="yasm"
1538 mmx_inline_deps="inline_asm"
1539 mmx_suggest="mmx_external mmx_inline"
1540
1541 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1542     eval dep=\$${ext}_deps
1543     eval ${ext}_external_deps='"${dep}_external"'
1544     eval ${ext}_inline_deps='"${dep}_inline"'
1545     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1546 done
1547
1548 aligned_stack_if_any="ppc x86"
1549 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1550 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1551 fast_unaligned_if_any="armv6 ppc x86"
1552
1553 inline_asm_deps="!tms470"
1554 need_memalign="altivec neon sse"
1555
1556 symver_if_any="symver_asm_label symver_gnu_asm"
1557
1558 log2_deps="!msvcrt"
1559
1560 # subsystems
1561 dct_select="rdft"
1562 mdct_select="fft"
1563 rdft_select="fft"
1564 mpegaudiodsp_select="dct"
1565 mpegvideoenc_select="mpegvideo"
1566
1567 # decoders / encoders / hardware accelerators
1568 aac_decoder_select="mdct sinewin"
1569 aac_encoder_select="mdct sinewin"
1570 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1571 ac3_decoder_select="mdct ac3dsp ac3_parser"
1572 ac3_encoder_select="mdct ac3dsp"
1573 ac3_fixed_encoder_select="mdct ac3dsp"
1574 alac_encoder_select="lpc"
1575 amrnb_decoder_select="lsp"
1576 amrwb_decoder_select="lsp"
1577 amv_encoder_select="aandcttables"
1578 atrac1_decoder_select="mdct sinewin"
1579 atrac3_decoder_select="mdct"
1580 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1581 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1582 cavs_decoder_select="golomb mpegvideo"
1583 cook_decoder_select="mdct sinewin"
1584 cscd_decoder_suggest="zlib"
1585 dca_decoder_select="mdct"
1586 dirac_decoder_select="dwt golomb"
1587 dnxhd_encoder_select="aandcttables mpegvideoenc"
1588 dxa_decoder_select="zlib"
1589 eac3_decoder_select="ac3_decoder"
1590 eac3_encoder_select="ac3_encoder"
1591 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1592 eatgq_decoder_select="aandcttables"
1593 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1594 exr_decoder_select="zlib"
1595 ffv1_decoder_select="golomb rangecoder"
1596 ffv1_encoder_select="rangecoder"
1597 ffvhuff_encoder_select="huffman"
1598 flac_decoder_select="golomb"
1599 flac_encoder_select="golomb lpc"
1600 flashsv_decoder_select="zlib"
1601 flashsv_encoder_select="zlib"
1602 flashsv2_encoder_select="zlib"
1603 flashsv2_decoder_select="zlib"
1604 flv_decoder_select="h263_decoder"
1605 flv_encoder_select="h263_encoder"
1606 fraps_decoder_select="huffman"
1607 h261_decoder_select="error_resilience mpegvideo"
1608 h261_encoder_select="aandcttables mpegvideoenc"
1609 h263_decoder_select="error_resilience h263_parser mpegvideo"
1610 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1611 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1612 h263i_decoder_select="h263_decoder"
1613 h263p_encoder_select="h263_encoder"
1614 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1615 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1616 h264_dxva2_hwaccel_deps="dxva2api_h"
1617 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1618 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1619 h264_vda_decoder_select="vda h264_parser h264_decoder"
1620 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1621 h264_vda_hwaccel_select="vda h264_decoder"
1622 h264_vdpau_decoder_select="vdpau h264_decoder"
1623 huffyuv_encoder_select="huffman"
1624 iac_decoder_select="fft mdct sinewin"
1625 imc_decoder_select="fft mdct sinewin"
1626 jpegls_decoder_select="golomb"
1627 jpegls_encoder_select="golomb"
1628 ljpeg_encoder_select="aandcttables mpegvideoenc"
1629 loco_decoder_select="golomb"
1630 mdec_decoder_select="error_resilience mpegvideo"
1631 mjpeg_encoder_select="aandcttables mpegvideoenc"
1632 mlp_decoder_select="mlp_parser"
1633 mp1_decoder_select="mpegaudiodsp"
1634 mp1float_decoder_select="mpegaudiodsp"
1635 mp2_decoder_select="mpegaudiodsp"
1636 mp2float_decoder_select="mpegaudiodsp"
1637 mp3_decoder_select="mpegaudiodsp"
1638 mp3adu_decoder_select="mpegaudiodsp"
1639 mp3adufloat_decoder_select="mpegaudiodsp"
1640 mp3float_decoder_select="mpegaudiodsp"
1641 mp3on4_decoder_select="mpegaudiodsp"
1642 mp3on4float_decoder_select="mpegaudiodsp"
1643 mpc7_decoder_select="mpegaudiodsp"
1644 mpc8_decoder_select="mpegaudiodsp"
1645 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1646 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1647 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1648 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1649 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1650 mpeg1video_decoder_select="error_resilience mpegvideo"
1651 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1652 mpeg2_crystalhd_decoder_select="crystalhd"
1653 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1654 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1655 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1656 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1657 mpeg2video_decoder_select="error_resilience mpegvideo"
1658 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1659 mpeg4_crystalhd_decoder_select="crystalhd"
1660 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1661 mpeg4_encoder_select="h263_encoder"
1662 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1663 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1664 msmpeg4_crystalhd_decoder_select="crystalhd"
1665 msmpeg4v1_decoder_select="h263_decoder"
1666 msmpeg4v1_encoder_select="h263_encoder"
1667 msmpeg4v2_decoder_select="h263_decoder"
1668 msmpeg4v2_encoder_select="h263_encoder"
1669 msmpeg4v3_decoder_select="h263_decoder"
1670 msmpeg4v3_encoder_select="h263_encoder"
1671 mss2_decoder_select="vc1_decoder"
1672 nellymoser_decoder_select="mdct sinewin"
1673 nellymoser_encoder_select="mdct sinewin"
1674 png_decoder_select="zlib"
1675 png_encoder_select="zlib"
1676 qcelp_decoder_select="lsp"
1677 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1678 ra_144_encoder_select="lpc"
1679 ralf_decoder_select="golomb"
1680 rv10_decoder_select="h263_decoder"
1681 rv10_encoder_select="h263_encoder"
1682 rv20_decoder_select="h263_decoder"
1683 rv20_encoder_select="h263_encoder"
1684 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1685 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1686 shorten_decoder_select="golomb"
1687 sipr_decoder_select="lsp"
1688 snow_decoder_select="dwt rangecoder"
1689 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1690 sonic_decoder_select="golomb"
1691 sonic_encoder_select="golomb"
1692 sonic_ls_encoder_select="golomb"
1693 svq1_decoder_select="error_resilience mpegvideo"
1694 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1695 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1696 svq3_decoder_suggest="zlib"
1697 theora_decoder_select="vp3_decoder"
1698 tiff_decoder_suggest="zlib"
1699 tiff_encoder_suggest="zlib"
1700 truehd_decoder_select="mlp_parser"
1701 tscc_decoder_select="zlib"
1702 twinvq_decoder_select="mdct lsp sinewin"
1703 utvideo_encoder_select="huffman"
1704 vc1_crystalhd_decoder_select="crystalhd"
1705 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1706 vc1_dxva2_hwaccel_deps="dxva2api_h"
1707 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1708 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1709 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1710 vc1image_decoder_select="vc1_decoder"
1711 vorbis_decoder_select="mdct"
1712 vorbis_encoder_select="mdct"
1713 vp3_decoder_select="vp3dsp"
1714 vp5_decoder_select="vp3dsp"
1715 vp6_decoder_select="huffman vp3dsp"
1716 vp6a_decoder_select="vp6_decoder"
1717 vp6f_decoder_select="vp6_decoder"
1718 vp8_decoder_select="h264pred h264qpel"
1719 wmapro_decoder_select="mdct sinewin"
1720 wmav1_decoder_select="mdct sinewin"
1721 wmav1_encoder_select="mdct sinewin"
1722 wmav2_decoder_select="mdct sinewin"
1723 wmav2_encoder_select="mdct sinewin"
1724 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1725 wmv1_decoder_select="h263_decoder"
1726 wmv1_encoder_select="h263_encoder"
1727 wmv2_decoder_select="h263_decoder"
1728 wmv2_encoder_select="h263_encoder"
1729 wmv3_decoder_select="vc1_decoder"
1730 wmv3_crystalhd_decoder_select="crystalhd"
1731 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1732 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1733 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1734 wmv3image_decoder_select="wmv3_decoder"
1735 zerocodec_decoder_select="zlib"
1736 zlib_decoder_select="zlib"
1737 zlib_encoder_select="zlib"
1738 zmbv_decoder_select="zlib"
1739 zmbv_encoder_select="zlib"
1740
1741 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1742 vaapi_deps="va_va_h"
1743 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1744 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1745
1746 # parsers
1747 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1748 mpeg4video_parser_select="error_resilience mpegvideo"
1749 mpegvideo_parser_select="error_resilience mpegvideo"
1750 vc1_parser_select="error_resilience mpegvideo"
1751
1752 # external libraries
1753 libaacplus_encoder_deps="libaacplus"
1754 libcelt_decoder_deps="libcelt"
1755 libfaac_encoder_deps="libfaac"
1756 libfdk_aac_encoder_deps="libfdk_aac"
1757 libgsm_decoder_deps="libgsm"
1758 libgsm_encoder_deps="libgsm"
1759 libgsm_ms_decoder_deps="libgsm"
1760 libgsm_ms_encoder_deps="libgsm"
1761 libilbc_decoder_deps="libilbc"
1762 libilbc_encoder_deps="libilbc"
1763 libmodplug_demuxer_deps="libmodplug"
1764 libmp3lame_encoder_deps="libmp3lame"
1765 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1766 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1767 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1768 libopenjpeg_decoder_deps="libopenjpeg"
1769 libopenjpeg_encoder_deps="libopenjpeg"
1770 libopus_decoder_deps="libopus"
1771 libopus_encoder_deps="libopus"
1772 libschroedinger_decoder_deps="libschroedinger"
1773 libschroedinger_encoder_deps="libschroedinger"
1774 libspeex_decoder_deps="libspeex"
1775 libspeex_encoder_deps="libspeex"
1776 libstagefright_h264_decoder_deps="libstagefright_h264"
1777 libtheora_encoder_deps="libtheora"
1778 libtwolame_encoder_deps="libtwolame"
1779 libvo_aacenc_encoder_deps="libvo_aacenc"
1780 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1781 libvorbis_decoder_deps="libvorbis"
1782 libvorbis_encoder_deps="libvorbis"
1783 libvpx_decoder_deps="libvpx"
1784 libvpx_encoder_deps="libvpx"
1785 libx264_encoder_deps="libx264"
1786 libx264rgb_encoder_deps="libx264"
1787 libxavs_encoder_deps="libxavs"
1788 libxvid_encoder_deps="libxvid"
1789 libutvideo_decoder_deps="libutvideo"
1790 libutvideo_encoder_deps="libutvideo"
1791
1792 # demuxers / muxers
1793 ac3_demuxer_select="ac3_parser"
1794 asf_stream_muxer_select="asf_muxer"
1795 avisynth_demuxer_deps="avisynth"
1796 dirac_demuxer_select="dirac_parser"
1797 eac3_demuxer_select="ac3_parser"
1798 f4v_muxer_select="mov_muxer"
1799 flac_demuxer_select="flac_parser"
1800 ipod_muxer_select="mov_muxer"
1801 libnut_demuxer_deps="libnut"
1802 libnut_muxer_deps="libnut"
1803 matroska_audio_muxer_select="matroska_muxer"
1804 matroska_demuxer_suggest="zlib bzlib"
1805 mov_demuxer_suggest="zlib"
1806 mp3_demuxer_select="mpegaudio_parser"
1807 mp4_muxer_select="mov_muxer"
1808 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1809 mpegtsraw_demuxer_select="mpegts_demuxer"
1810 mxf_d10_muxer_select="mxf_muxer"
1811 ogg_demuxer_select="golomb"
1812 psp_muxer_select="mov_muxer"
1813 rtp_demuxer_select="sdp_demuxer"
1814 rtp_muxer_select="mpegvideo"
1815 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1816 rtsp_demuxer_select="http_protocol rtpdec"
1817 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1818 sap_demuxer_select="sdp_demuxer"
1819 sap_muxer_select="rtp_muxer rtp_protocol"
1820 sdp_demuxer_select="rtpdec"
1821 smoothstreaming_muxer_select="ismv_muxer"
1822 spdif_muxer_select="aac_parser"
1823 tg2_muxer_select="mov_muxer"
1824 tgp_muxer_select="mov_muxer"
1825 w64_demuxer_deps="wav_demuxer"
1826
1827 # indevs / outdevs
1828 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1829 alsa_outdev_deps="alsa_asoundlib_h"
1830 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1831 caca_outdev_deps="libcaca"
1832 dshow_indev_deps="IBaseFilter"
1833 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1834 dv1394_indev_deps="dv1394 dv_demuxer"
1835 fbdev_indev_deps="linux_fb_h"
1836 iec61883_indev_deps="libiec61883"
1837 jack_indev_deps="jack_jack_h sem_timedwait"
1838 lavfi_indev_deps="avfilter"
1839 libcdio_indev_deps="libcdio"
1840 libdc1394_indev_deps="libdc1394"
1841 libv4l2_indev_deps="libv4l2"
1842 openal_indev_deps="openal"
1843 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1844 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1845 pulse_indev_deps="libpulse"
1846 sdl_outdev_deps="sdl"
1847 sndio_indev_deps="sndio_h"
1848 sndio_outdev_deps="sndio_h"
1849 v4l_indev_deps="linux_videodev_h"
1850 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1851 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1852 vfwcap_indev_extralibs="-lavicap32"
1853 x11grab_indev_deps="x11grab"
1854
1855 # protocols
1856 bluray_protocol_deps="libbluray"
1857 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1858 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1859 ffrtmpcrypt_protocol_select="tcp_protocol"
1860 ffrtmphttp_protocol_deps="!librtmp_protocol"
1861 ffrtmphttp_protocol_select="http_protocol"
1862 gopher_protocol_deps="network"
1863 httpproxy_protocol_deps="network"
1864 httpproxy_protocol_select="tcp_protocol"
1865 http_protocol_deps="network"
1866 http_protocol_select="tcp_protocol"
1867 https_protocol_select="tls_protocol"
1868 librtmp_protocol_deps="librtmp"
1869 librtmpe_protocol_deps="librtmp"
1870 librtmps_protocol_deps="librtmp"
1871 librtmpt_protocol_deps="librtmp"
1872 librtmpte_protocol_deps="librtmp"
1873 mmsh_protocol_select="http_protocol"
1874 mmst_protocol_deps="network"
1875 rtmp_protocol_deps="!librtmp_protocol"
1876 rtmp_protocol_select="tcp_protocol"
1877 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1878 rtmps_protocol_deps="!librtmp_protocol"
1879 rtmps_protocol_select="tls_protocol"
1880 rtmpt_protocol_select="ffrtmphttp_protocol"
1881 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1882 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1883 rtp_protocol_select="udp_protocol"
1884 sctp_protocol_deps="network struct_sctp_event_subscribe"
1885 tcp_protocol_deps="network"
1886 tls_protocol_deps_any="openssl gnutls"
1887 tls_protocol_select="tcp_protocol"
1888 udp_protocol_deps="network"
1889
1890 # filters
1891 aconvert_filter_deps="swresample"
1892 amovie_filter_deps="avcodec avformat"
1893 aresample_filter_deps="swresample"
1894 ass_filter_deps="libass"
1895 asyncts_filter_deps="avresample"
1896 atempo_filter_deps="avcodec rdft"
1897 blackframe_filter_deps="gpl"
1898 boxblur_filter_deps="gpl"
1899 colormatrix_filter_deps="gpl"
1900 cropdetect_filter_deps="gpl"
1901 decimate_filter_deps="gpl avcodec"
1902 delogo_filter_deps="gpl"
1903 deshake_filter_deps="avcodec"
1904 drawtext_filter_deps="libfreetype"
1905 ebur128_filter_deps="gpl"
1906 flite_filter_deps="libflite"
1907 frei0r_filter_deps="frei0r dlopen"
1908 frei0r_filter_extralibs='$ldl'
1909 frei0r_src_filter_deps="frei0r dlopen"
1910 frei0r_src_filter_extralibs='$ldl'
1911 hqdn3d_filter_deps="gpl"
1912 movie_filter_deps="avcodec avformat"
1913 mp_filter_deps="gpl avcodec swscale postproc inline_asm"
1914 mptestsrc_filter_deps="gpl"
1915 negate_filter_deps="lut_filter"
1916 resample_filter_deps="avresample"
1917 ocv_filter_deps="libopencv"
1918 pan_filter_deps="swresample"
1919 removelogo_filter_deps="avcodec avformat swscale"
1920 scale_filter_deps="swscale"
1921 smartblur_filter_deps="gpl swscale"
1922 showspectrum_filter_deps="avcodec"
1923 super2xsai_filter_deps="gpl"
1924 tinterlace_filter_deps="gpl"
1925 yadif_filter_deps="gpl"
1926 pixfmts_super2xsai_test_deps="super2xsai_filter"
1927 tinterlace_merge_test_deps="tinterlace_filter"
1928 tinterlace_pad_test_deps="tinterlace_filter"
1929
1930 # libraries
1931 avdevice_deps="avcodec avformat"
1932 avformat_deps="avcodec"
1933 postproc_deps="gpl"
1934
1935 # programs
1936 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1937 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
1938                setpts_filter null_filter anull_filter ffabuffersink_filter"
1939 ffplay_deps="avcodec avformat swscale swresample sdl"
1940 ffplay_select="ffbuffersink_filter rdft crop_filter"
1941 ffprobe_deps="avcodec avformat"
1942 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1943 ffserver_extralibs='$ldl'
1944
1945 # documentation
1946 podpages_deps="perl"
1947 manpages_deps="perl pod2man"
1948 htmlpages_deps="texi2html"
1949 txtpages_deps="makeinfo"
1950 doc_deps_any="manpages htmlpages podpages txtpages"
1951
1952 # tests
1953 colormatrix1_test_deps="colormatrix_filter"
1954 colormatrix2_test_deps="colormatrix_filter"
1955 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1956 png_test_deps="zlib"
1957 pp_test_deps="mp_filter"
1958 pp2_test_deps="mp_filter"
1959 pp3_test_deps="mp_filter"
1960 pp4_test_deps="mp_filter"
1961 pp5_test_deps="mp_filter"
1962 pp6_test_deps="mp_filter"
1963 seek_flashsv_flv_test_deps="zlib"
1964 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1965
1966 test_deps(){
1967     suf1=$1
1968     suf2=$2
1969     shift 2
1970     for v; do
1971         dep=${v%=*}
1972         tests=${v#*=}
1973         for name in ${tests}; do
1974             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1975         done
1976     done
1977 }
1978
1979 test_deps _muxer _demuxer                                               \
1980     aiff                                                                \
1981     pcm_alaw=alaw                                                       \
1982     asf                                                                 \
1983     au                                                                  \
1984     avi                                                                 \
1985     dv=dv_fmt                                                           \
1986     ffm                                                                 \
1987     flv=flv_fmt                                                         \
1988     gxf                                                                 \
1989     matroska=mkv                                                        \
1990     mmf                                                                 \
1991     mov="mov ismv"                                                      \
1992     pcm_mulaw=mulaw                                                     \
1993     mxf="mxf mxf_d10"                                                   \
1994     nut                                                                 \
1995     ogg="ogg ogg_vp3"                                                   \
1996     rawvideo=pixfmt                                                     \
1997     rm                                                                  \
1998     swf                                                                 \
1999     mpegts=ts                                                           \
2000     voc                                                                 \
2001     wav                                                                 \
2002     yuv4mpegpipe=yuv4mpeg                                               \
2003
2004 # default parameters
2005
2006 logfile="config.log"
2007
2008 # installation paths
2009 prefix_default="/usr/local"
2010 bindir_default='${prefix}/bin'
2011 datadir_default='${prefix}/share/ffmpeg'
2012 incdir_default='${prefix}/include'
2013 libdir_default='${prefix}/lib'
2014 mandir_default='${prefix}/share/man'
2015 shlibdir_default="$libdir_default"
2016 postproc_version_default="current"
2017
2018 # toolchain
2019 ar_default="ar"
2020 cc_default="gcc"
2021 cxx_default="g++"
2022 host_cc_default="gcc"
2023 install="install"
2024 ln_s="ln -sf"
2025 nm_default="nm -g"
2026 objformat="elf"
2027 pkg_config_default=pkg-config
2028 ranlib="ranlib"
2029 strip_default="strip"
2030 yasmexe_default="yasm"
2031
2032 nogas=":"
2033
2034 # machine
2035 arch_default=$(uname -m)
2036 cpu="generic"
2037
2038 # OS
2039 target_os_default=$(tolower $(uname -s))
2040 host_os=$target_os_default
2041
2042 # alternative libpostproc version
2043 ALT_PP_VER_MAJOR=51
2044 ALT_PP_VER_MINOR=2
2045 ALT_PP_VER_MICRO=101
2046 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
2047
2048 # configurable options
2049 enable $PROGRAM_LIST
2050 enable $DOCUMENT_LIST
2051
2052 enable avcodec
2053 enable avdevice
2054 enable avfilter
2055 enable avformat
2056 enable avutil
2057 enable postproc
2058 enable stripping
2059 enable swresample
2060 enable swscale
2061
2062 enable asm
2063 enable debug
2064 enable doc
2065 enable network
2066 enable optimizations
2067 enable runtime_cpudetect
2068 enable safe_bitstream_reader
2069 enable static
2070 enable swscale_alpha
2071
2072 # build settings
2073 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2074 FFSERVERLDFLAGS=-Wl,-E
2075 LIBPREF="lib"
2076 LIBSUF=".a"
2077 FULLNAME='$(NAME)$(BUILDSUF)'
2078 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2079 SLIBPREF="lib"
2080 SLIBSUF=".so"
2081 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2082 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2083 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2084 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2085 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2086 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2087
2088 asflags_filter=echo
2089 cflags_filter=echo
2090 ldflags_filter=echo
2091
2092 AS_C='-c'
2093 AS_O='-o $@'
2094 CC_C='-c'
2095 CC_E='-E -o $@'
2096 CC_O='-o $@'
2097 CXX_C='-c'
2098 CXX_O='-o $@'
2099 LD_O='-o $@'
2100 LD_LIB='-l%'
2101 LD_PATH='-L'
2102 HOSTCC_C='-c'
2103 HOSTCC_O='-o $@'
2104 HOSTLD_O='-o $@'
2105
2106 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2107 host_libs='-lm'
2108 host_cflags_filter=echo
2109 host_ldflags_filter=echo
2110
2111 target_path='$(CURDIR)'
2112
2113 # since the object filename is not given with the -MM flag, the compiler
2114 # is only able to print the basename, and we must add the path ourselves
2115 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2116 DEPFLAGS='-MM'
2117
2118 # find source path
2119 if test -f configure; then
2120     source_path=.
2121 else
2122     source_path=$(cd $(dirname "$0"); pwd)
2123     echo "$source_path" | grep -q '[[:blank:]]' &&
2124         die "Out of tree builds are impossible with whitespace in source path."
2125     test -e "$source_path/config.h" &&
2126         die "Out of tree builds are impossible with config.h in source dir."
2127 fi
2128
2129 for v in "$@"; do
2130     r=${v#*=}
2131     l=${v%"$r"}
2132     r=$(sh_quote "$r")
2133     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2134 done
2135
2136 find_things(){
2137     thing=$1
2138     pattern=$2
2139     file=$source_path/$3
2140     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2141 }
2142
2143 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2144 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2145 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2146 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2147 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2148 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2149 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2150 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2151 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2152 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2153 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2154
2155 ALL_COMPONENTS="
2156     $BSF_LIST
2157     $DECODER_LIST
2158     $DEMUXER_LIST
2159     $ENCODER_LIST
2160     $FILTER_LIST
2161     $HWACCEL_LIST
2162     $INDEV_LIST
2163     $MUXER_LIST
2164     $OUTDEV_LIST
2165     $PARSER_LIST
2166     $PROTOCOL_LIST
2167 "
2168
2169 find_tests(){
2170     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2171 }
2172
2173 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2174 LAVF_TESTS=$(find_tests lavf)
2175 LAVFI_TESTS=$(find_tests lavfi)
2176 SEEK_TESTS=$(find_tests seek seek_)
2177
2178 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2179
2180 for n in $COMPONENT_LIST; do
2181     v=$(toupper ${n%s})_LIST
2182     eval enable \$$v
2183     eval ${n}_if_any="\$$v"
2184 done
2185
2186 enable $ARCH_EXT_LIST $ALL_TESTS
2187
2188 die_unknown(){
2189     echo "Unknown option \"$1\"."
2190     echo "See $0 --help for available options."
2191     exit 1
2192 }
2193
2194 show_list() {
2195     suffix=_$1
2196     shift
2197     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2198     exit 0
2199 }
2200
2201 rand_list(){
2202     IFS=', '
2203     set -- $*
2204     unset IFS
2205     for thing; do
2206         comp=${thing%:*}
2207         prob=${thing#$comp}
2208         prob=${prob#:}
2209         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2210         echo "prob ${prob:-0.5}"
2211         printf '%s\n' $comp
2212     done
2213 }
2214
2215 do_random(){
2216     action=$1
2217     shift
2218     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2219     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2220 }
2221
2222 for opt do
2223     optval="${opt#*=}"
2224     case "$opt" in
2225     --extra-ldflags=*) add_ldflags $optval
2226     ;;
2227     --extra-libs=*) add_extralibs $optval
2228     ;;
2229     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2230     ;;
2231     --enable-debug=*) debuglevel="$optval"
2232     ;;
2233     --disable-everything)
2234     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2235     ;;
2236     --enable-random|--disable-random)
2237     action=${opt%%-random}
2238     do_random ${action#--} $COMPONENT_LIST
2239     ;;
2240     --enable-random=*|--disable-random=*)
2241     action=${opt%%-random=*}
2242     do_random ${action#--} $optval
2243     ;;
2244     --enable-*=*|--disable-*=*)
2245     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2246     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2247     eval list=\$$(toupper $thing)_LIST
2248     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2249     $action $(filter "$name" $list)
2250     ;;
2251     --enable-?*|--disable-?*)
2252     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2253     if is_in $option $COMPONENT_LIST; then
2254         test $action = disable && action=unset
2255         eval $action \$$(toupper ${option%s})_LIST
2256     elif is_in $option $CMDLINE_SELECT; then
2257         $action $option
2258     else
2259         die_unknown $opt
2260     fi
2261     ;;
2262     --list-*)
2263         NAME="${opt#--list-}"
2264         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2265         NAME=${NAME%s}
2266         eval show_list $NAME \$$(toupper $NAME)_LIST
2267     ;;
2268     --help|-h) show_help
2269     ;;
2270     *)
2271     optname="${opt%%=*}"
2272     optname="${optname#--}"
2273     optname=$(echo "$optname" | sed 's/-/_/g')
2274     if is_in $optname $CMDLINE_SET; then
2275         eval $optname='$optval'
2276     elif is_in $optname $CMDLINE_APPEND; then
2277         append $optname "$optval"
2278     else
2279          die_unknown $opt
2280     fi
2281     ;;
2282     esac
2283 done
2284
2285 disabled logging && logfile=/dev/null
2286
2287 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2288 set >> $logfile
2289
2290 test -n "$cross_prefix" && enable cross_compile
2291
2292 if enabled cross_compile; then
2293     test -n "$arch" && test -n "$target_os" ||
2294         die "Must specify target arch and OS when cross-compiling"
2295 fi
2296
2297 set_default arch target_os postproc_version
2298
2299 # Check if we should build alternative libpostproc version instead of current
2300 if   test "$postproc_version" = $ALT_PP_VER; then
2301   LIBPOSTPROC_VERSION=$ALT_PP_VER
2302   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2303   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2304   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2305 elif test "$postproc_version" != current; then
2306   die "Invalid argument to --postproc-version. See --help output."
2307 fi
2308
2309 ar_default="${cross_prefix}${ar_default}"
2310 cc_default="${cross_prefix}${cc_default}"
2311 cxx_default="${cross_prefix}${cxx_default}"
2312 nm_default="${cross_prefix}${nm_default}"
2313 pkg_config_default="${cross_prefix}${pkg_config_default}"
2314 ranlib="${cross_prefix}${ranlib}"
2315 strip_default="${cross_prefix}${strip_default}"
2316
2317 sysinclude_default="${sysroot}/usr/include"
2318
2319 case "$toolchain" in
2320     msvc)
2321         cc_default="c99wrap cl"
2322         ld_default="c99wrap link"
2323         nm_default="dumpbin -symbols"
2324         ar_default="lib"
2325     ;;
2326     ?*)
2327         die "Unknown toolchain $toolchain"
2328     ;;
2329 esac
2330
2331 set_default cc cxx pkg_config strip sysinclude yasmexe
2332 enabled cross_compile || host_cc_default=$cc
2333 set_default host_cc
2334
2335 if ! $pkg_config --version >/dev/null 2>&1; then
2336     warn "$pkg_config not found, library detection may fail."
2337     pkg_config=false
2338 fi
2339
2340 exesuf() {
2341     case $1 in
2342         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2343     esac
2344 }
2345
2346 EXESUF=$(exesuf $target_os)
2347 HOSTEXESUF=$(exesuf $host_os)
2348
2349 # set temporary file name
2350 : ${TMPDIR:=$TEMPDIR}
2351 : ${TMPDIR:=$TMP}
2352 : ${TMPDIR:=/tmp}
2353
2354 if ! check_cmd mktemp -u XXXXXX; then
2355     # simple replacement for missing mktemp
2356     # NOT SAFE FOR GENERAL USE
2357     mktemp(){
2358         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2359     }
2360 fi
2361
2362 tmpfile(){
2363     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2364         (set -C; exec > $tmp) 2>/dev/null ||
2365         die "Unable to create temporary file in $TMPDIR."
2366     append TMPFILES $tmp
2367     eval $1=$tmp
2368 }
2369
2370 trap 'rm -f -- $TMPFILES' EXIT
2371
2372 tmpfile TMPASM .asm
2373 tmpfile TMPC   .c
2374 tmpfile TMPCPP .cpp
2375 tmpfile TMPE   $EXESUF
2376 tmpfile TMPH   .h
2377 tmpfile TMPO   .o
2378 tmpfile TMPS   .S
2379 tmpfile TMPSH  .sh
2380 tmpfile TMPV   .ver
2381
2382 unset -f mktemp
2383
2384 chmod +x $TMPE
2385
2386 # make sure we can execute files in $TMPDIR
2387 cat > $TMPSH 2>> $logfile <<EOF
2388 #! /bin/sh
2389 EOF
2390 chmod +x $TMPSH >> $logfile 2>&1
2391 if ! $TMPSH >> $logfile 2>&1; then
2392     cat <<EOF
2393 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2394 variable to another directory and make sure that it is not mounted noexec.
2395 EOF
2396     die "Sanity test failed."
2397 fi
2398
2399 msvc_flags(){
2400     for flag; do
2401         case $flag in
2402             -fomit-frame-pointer) echo -Oy ;;
2403             -g)                   echo -Z7 ;;
2404             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2405                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2406                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2407                                        -wd4996 -wd4554 ;;
2408             -std=c99)             ;;
2409             -fno-math-errno)      ;;
2410             -fno-common)          ;;
2411             -fno-signed-zeros)    ;;
2412             -lz)                  echo zlib.lib ;;
2413             -lavifil32)           echo vfw32.lib ;;
2414             -lavicap32)           echo vfw32.lib user32.lib ;;
2415             -l*)                  echo ${flag#-l}.lib ;;
2416             *)                    echo $flag ;;
2417         esac
2418     done
2419 }
2420
2421 pgi_flags(){
2422     for flag; do
2423         case $flag in
2424             -fomit-frame-pointer) echo -Mnoframe ;;
2425             -g)                   echo -gopt ;;
2426             *)                    echo $flag ;;
2427         esac
2428     done
2429 }
2430
2431 suncc_flags(){
2432     for flag; do
2433         case $flag in
2434             -march=*|-mcpu=*)
2435                 case "${flag#*=}" in
2436                     native)                   echo -xtarget=native       ;;
2437                     v9|niagara)               echo -xarch=sparc          ;;
2438                     ultrasparc)               echo -xarch=sparcvis       ;;
2439                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2440                     i586|pentium)             echo -xchip=pentium        ;;
2441                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2442                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2443                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2444                     pentium4*)          echo -xtarget=pentium4           ;;
2445                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2446                     *-sse3)             echo -xarch=sse3                 ;;
2447                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2448                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2449                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2450                     k8|opteron|athlon64|athlon-fx)
2451                                               echo -xarch=sse2a          ;;
2452                     athlon*)                  echo -xarch=pentium_proa   ;;
2453                 esac
2454                 ;;
2455             -std=c99)             echo -xc99              ;;
2456             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2457             -fPIC)                echo -KPIC -xcode=pic32 ;;
2458             -W*,*)                echo $flag              ;;
2459             -f*-*|-W*)                                    ;;
2460             *)                    echo $flag              ;;
2461         esac
2462     done
2463 }
2464
2465 tms470_flags(){
2466     for flag; do
2467         case $flag in
2468             -march=*|-mcpu=*)
2469                 case "${flag#*=}" in
2470                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2471                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2472                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2473                     armv6*|arm11*)          echo -mv=6   ;;
2474                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2475                                             echo -mv=5e  ;;
2476                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2477                 esac
2478                 ;;
2479             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2480             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2481             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2482             -msoft-float)   echo --float_support=vfplib       ;;
2483             -O[0-3]|-mf=*)  echo $flag                        ;;
2484             -g)             echo -g -mn                       ;;
2485             -pds=*)         echo $flag                        ;;
2486             -D*|-I*)        echo $flag                        ;;
2487             --gcc|--abi=*)  echo $flag                        ;;
2488             -me)            echo $flag                        ;;
2489         esac
2490     done
2491 }
2492
2493 probe_cc(){
2494     pfx=$1
2495     _cc=$2
2496
2497     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2498     unset _ld_o _ldflags _ld_lib _ld_path
2499     unset _depflags _DEPCMD _DEPFLAGS
2500     _flags_filter=echo
2501
2502     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2503         _type=llvm_gcc
2504         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2505         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2506         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2507         _cflags_speed='-O3'
2508         _cflags_size='-Os'
2509     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2510         _type=gcc
2511         gcc_version=$($_cc --version | head -n1)
2512         gcc_basever=$($_cc -dumpversion)
2513         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2514         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2515         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2516         if ! $_cc -dumpversion | grep -q '^2\.'; then
2517             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2518         fi
2519         _cflags_speed='-O3'
2520         _cflags_size='-Os'
2521     elif $_cc --version 2>/dev/null | grep -q Intel; then
2522         _type=icc
2523         _ident=$($_cc --version | head -n1)
2524         _depflags='-MMD'
2525         _cflags_speed='-O3'
2526         _cflags_size='-Os'
2527         _cflags_noopt='-O1'
2528     elif $_cc -v 2>&1 | grep -q xlc; then
2529         _type=xlc
2530         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2531         _cflags_speed='-O5'
2532         _cflags_size='-O5 -qcompact'
2533     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2534         _type=ccc
2535         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2536         _DEPFLAGS='-M'
2537         debuglevel=3
2538         _ldflags='-Wl,-z,now' # calls to libots crash without this
2539         _cflags_speed='-fast'
2540         _cflags_size='-O1'
2541     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2542         test -d "$sysroot" || die "No valid sysroot specified."
2543         _type=armcc
2544         _ident=$($_cc --vsn | head -n1)
2545         armcc_conf="$PWD/armcc.conf"
2546         $_cc --arm_linux_configure                 \
2547              --arm_linux_config_file="$armcc_conf" \
2548              --configure_sysroot="$sysroot"        \
2549              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2550              die "Error creating armcc configuration file."
2551         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2552         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2553         as_default="${cross_prefix}gcc"
2554         _depflags='-MMD'
2555         _cflags_speed='-O3'
2556         _cflags_size='-Os'
2557     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2558         _type=tms470
2559         _ident=$($_cc -version | head -n1 | tr -s ' ')
2560         _flags='--gcc --abi=eabi -me'
2561         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2562         _cc_e='-ppl -fe=$@'
2563         _cc_o='-fe=$@'
2564         as_default="${cross_prefix}gcc"
2565         ld_default="${cross_prefix}gcc"
2566         _depflags='-ppa -ppd=$(@:.o=.d)'
2567         _cflags_speed='-O3 -mf=5'
2568         _cflags_size='-O3 -mf=2'
2569         _flags_filter=tms470_flags
2570     elif $_cc -v 2>&1 | grep -q clang; then
2571         _type=clang
2572         _ident=$($_cc --version | head -n1)
2573         _depflags='-MMD'
2574         _cflags_speed='-O3'
2575         _cflags_size='-Os'
2576     elif $_cc -V 2>&1 | grep -q Sun; then
2577         _type=suncc
2578         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2579         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2580         _DEPFLAGS='-xM1 -xc99'
2581         _ldflags='-std=c99'
2582         _cflags_speed='-O5'
2583         _cflags_size='-O5 -xspace'
2584         _flags_filter=suncc_flags
2585     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2586         _type=pathscale
2587         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2588         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2589         _cflags_speed='-O2'
2590         _cflags_size='-Os'
2591         _flags_filter='filter_out -Wdisabled-optimization'
2592     elif $_cc -v 2>&1 | grep -q Open64; then
2593         _type=open64
2594         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2595         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2596         _cflags_speed='-O2'
2597         _cflags_size='-Os'
2598         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2599     elif $_cc -V 2>&1 | grep -q Portland; then
2600         _type=pgi
2601         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2602         opt_common='-alias=ansi -Mlre -Mpre'
2603         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2604         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2605         _cflags_noopt="-O1"
2606         _flags_filter=pgi_flags
2607     elif $_cc 2>&1 | grep -q Microsoft; then
2608         _type=msvc
2609         _ident=$($cc 2>&1 | head -n1)
2610         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2611         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2612         _cflags_speed="-O2"
2613         _cflags_size="-O1"
2614         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2615         if $_cc 2>&1 | grep -q Linker; then
2616             _ld_o='-out $@'
2617         else
2618             _ld_o='-Fe$@'
2619         fi
2620         _cc_o='-Fo $@'
2621         _cc_e='-P -Fi $@'
2622         _flags_filter=msvc_flags
2623         _ld_lib='lib%.a'
2624         _ld_path='-libpath:'
2625         _flags='-nologo'
2626         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2627         if [ $pfx = hostcc ]; then
2628             append _cflags -Dsnprintf=_snprintf
2629         fi
2630         disable stripping
2631     fi
2632
2633     eval ${pfx}_type=\$_type
2634     eval ${pfx}_ident=\$_ident
2635 }
2636
2637 set_ccvars(){
2638     eval ${1}_C=\${_cc_c-\${${1}_C}}
2639     eval ${1}_E=\${_cc_e-\${${1}_E}}
2640     eval ${1}_O=\${_cc_o-\${${1}_O}}
2641
2642     if [ -n "$_depflags" ]; then
2643         eval ${1}_DEPFLAGS=\$_depflags
2644     else
2645         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2646         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2647         eval DEP${1}FLAGS=\$_flags
2648     fi
2649 }
2650
2651 probe_cc cc "$cc"
2652 cflags_filter=$_flags_filter
2653 cflags_speed=$_cflags_speed
2654 cflags_size=$_cflags_size
2655 cflags_noopt=$_cflags_noopt
2656 add_cflags $_flags $_cflags
2657 cc_ldflags=$_ldflags
2658 set_ccvars CC
2659
2660 probe_cc hostcc "$host_cc"
2661 host_cflags_filter=$_flags_filter
2662 add_host_cflags  $_flags $_cflags
2663 set_ccvars HOSTCC
2664
2665 test -n "$cc_type" && enable $cc_type ||
2666     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2667
2668 : ${as_default:=$cc}
2669 : ${dep_cc_default:=$cc}
2670 : ${ld_default:=$cc}
2671 : ${host_ld_default:=$host_cc}
2672 set_default ar as dep_cc ld host_ld
2673
2674 probe_cc as "$as"
2675 asflags_filter=$_flags_filter
2676 add_asflags $_flags $_cflags
2677 set_ccvars AS
2678
2679 probe_cc ld "$ld"
2680 ldflags_filter=$_flags_filter
2681 add_ldflags $_flags $_ldflags
2682 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2683 LD_O=${_ld_o-$LD_O}
2684 LD_LIB=${_ld_lib-$LD_LIB}
2685 LD_PATH=${_ld_path-$LD_PATH}
2686
2687 probe_cc hostld "$host_ld"
2688 host_ldflags_filter=$_flags_filter
2689 add_host_ldflags $_flags $_ldflags
2690 HOSTLD_O=${_ld_o-$HOSTLD_O}
2691
2692 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2693     probe_cc depcc "$dep_cc"
2694     CCDEP=${_DEPCMD:-$DEPCMD}
2695     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2696     DEPCCFLAGS=$_flags
2697 fi
2698
2699 if $ar 2>&1 | grep -q Microsoft; then
2700     arflags="-nologo"
2701     ar_o='-out:$@'
2702 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2703     arflags="rq"
2704     ar_o='$@'
2705 else
2706     arflags="rc"
2707     ar_o='$@'
2708 fi
2709
2710 add_cflags $extra_cflags
2711 add_cxxflags $extra_cxxflags
2712 add_asflags $extra_cflags
2713
2714 if test -n "$sysroot"; then
2715     case "$cc_type" in
2716         gcc|llvm_gcc|clang)
2717             add_cppflags --sysroot="$sysroot"
2718             add_ldflags --sysroot="$sysroot"
2719         ;;
2720         tms470)
2721             add_cppflags -I"$sysinclude"
2722             add_ldflags  --sysroot="$sysroot"
2723         ;;
2724     esac
2725 fi
2726
2727 if test "$cpu" = host; then
2728     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2729
2730     case "$cc_type" in
2731         gcc|llvm_gcc)
2732             check_native(){
2733                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2734                 sed -n "/cc1.*$1=/{
2735                             s/.*$1=\\([^ ]*\\).*/\\1/
2736                             p
2737                             q
2738                         }" $TMPE
2739             }
2740             cpu=$(check_native -march || check_native -mcpu)
2741         ;;
2742     esac
2743
2744     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2745 fi
2746
2747 # Deal with common $arch aliases
2748 case "$arch" in
2749     arm*|iPad*)
2750         arch="arm"
2751     ;;
2752     mips|mipsel|IP*)
2753         arch="mips"
2754     ;;
2755     mips64*)
2756         arch="mips"
2757         subarch="mips64"
2758     ;;
2759     parisc|hppa)
2760         arch="parisc"
2761     ;;
2762     parisc64|hppa64)
2763         arch="parisc"
2764         subarch="parisc64"
2765     ;;
2766     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2767         arch="ppc"
2768     ;;
2769     s390|s390x)
2770         arch="s390"
2771     ;;
2772     sh4|sh)
2773         arch="sh4"
2774     ;;
2775     sun4u|sparc64)
2776         arch="sparc"
2777         subarch="sparc64"
2778     ;;
2779     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2780         arch="x86"
2781     ;;
2782 esac
2783
2784 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2785 enable $arch
2786
2787 # Add processor-specific flags
2788 if test "$cpu" = generic; then
2789     : do nothing
2790 elif enabled ppc; then
2791
2792     case $(tolower $cpu) in
2793         601|ppc601|powerpc601)
2794             cpuflags="-mcpu=601"
2795             disable altivec
2796         ;;
2797         603*|ppc603*|powerpc603*)
2798             cpuflags="-mcpu=603"
2799             disable altivec
2800         ;;
2801         604*|ppc604*|powerpc604*)
2802             cpuflags="-mcpu=604"
2803             disable altivec
2804         ;;
2805         g3|75*|ppc75*|powerpc75*)
2806             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2807             disable altivec
2808         ;;
2809         g4|745*|ppc745*|powerpc745*)
2810             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2811         ;;
2812         74*|ppc74*|powerpc74*)
2813             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2814         ;;
2815         g5|970|ppc970|powerpc970)
2816             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2817         ;;
2818         power[3-7]*)
2819             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2820         ;;
2821         cell)
2822             cpuflags="-mcpu=cell"
2823             enable ldbrx
2824         ;;
2825         e500mc)
2826             cpuflags="-mcpu=e500mc"
2827             disable altivec
2828         ;;
2829         e500v2)
2830             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2831             disable altivec
2832         ;;
2833         e500)
2834             cpuflags="-mcpu=8540 -mhard-float"
2835             disable altivec
2836         ;;
2837     esac
2838
2839 elif enabled x86; then
2840
2841     case $cpu in
2842         i[345]86|pentium)
2843             cpuflags="-march=$cpu"
2844             disable mmx
2845         ;;
2846         # targets that do NOT support conditional mov (cmov)
2847         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2848             cpuflags="-march=$cpu"
2849             disable cmov
2850         ;;
2851         # targets that do support conditional mov (cmov)
2852         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
2853             cpuflags="-march=$cpu"
2854             enable cmov
2855             enable fast_cmov
2856         ;;
2857         # targets that do support conditional mov but on which it's slow
2858         pentium4|pentium4m|prescott|nocona)
2859             cpuflags="-march=$cpu"
2860             enable cmov
2861             disable fast_cmov
2862         ;;
2863     esac
2864
2865 elif enabled sparc; then
2866
2867     case $cpu in
2868         niagara)
2869             cpuflags="-mcpu=$cpu"
2870             disable vis
2871         ;;
2872         sparc64)
2873             cpuflags="-mcpu=v9"
2874         ;;
2875     esac
2876
2877 elif enabled arm; then
2878
2879     case $cpu in
2880         armv*)
2881             cpuflags="-march=$cpu"
2882             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2883         ;;
2884         *)
2885             cpuflags="-mcpu=$cpu"
2886             case $cpu in
2887                 cortex-a*)                               subarch=armv7a  ;;
2888                 cortex-r*)                               subarch=armv7r  ;;
2889                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2890                 arm11*)                                  subarch=armv6   ;;
2891                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2892                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2893             esac
2894         ;;
2895     esac
2896
2897 elif enabled alpha; then
2898
2899     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2900
2901 elif enabled bfin; then
2902
2903     cpuflags="-mcpu=$cpu"
2904
2905 elif enabled mips; then
2906
2907     cpuflags="-march=$cpu"
2908
2909     case $cpu in
2910         24kc)
2911             disable mipsfpu
2912             disable mipsdspr1
2913             disable mipsdspr2
2914         ;;
2915         24kf*)
2916             disable mipsdspr1
2917             disable mipsdspr2
2918         ;;
2919         24kec|34kc|1004kc)
2920             disable mipsfpu
2921             disable mipsdspr2
2922         ;;
2923         24kef*|34kf*|1004kf*)
2924             disable mipsdspr2
2925         ;;
2926         74kc)
2927             disable mipsfpu
2928         ;;
2929     esac
2930
2931 elif enabled avr32; then
2932
2933     case $cpu in
2934         ap7[02]0[0-2])
2935             subarch="avr32_ap"
2936             cpuflags="-mpart=$cpu"
2937         ;;
2938         ap)
2939             subarch="avr32_ap"
2940             cpuflags="-march=$cpu"
2941         ;;
2942         uc3[ab]*)
2943             subarch="avr32_uc"
2944             cpuflags="-mcpu=$cpu"
2945         ;;
2946         uc)
2947             subarch="avr32_uc"
2948             cpuflags="-march=$cpu"
2949         ;;
2950     esac
2951
2952 fi
2953
2954 add_cflags $cpuflags
2955 add_asflags $cpuflags
2956
2957 # compiler sanity check
2958 check_exec <<EOF
2959 int main(void){ return 0; }
2960 EOF
2961 if test "$?" != 0; then
2962     echo "$cc is unable to create an executable file."
2963     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2964         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2965         echo "Only do this if you know what cross compiling means."
2966     fi
2967     die "C compiler test failed."
2968 fi
2969
2970 add_cppflags -D_ISOC99_SOURCE
2971 add_cxxflags -D__STDC_CONSTANT_MACROS
2972 check_cflags -std=c99
2973 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2974 #include <stdlib.h>
2975 EOF
2976 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2977 #include <stdlib.h>
2978 EOF
2979
2980 check_host_cflags -std=c99
2981 check_host_cflags -Wall
2982
2983 case "$arch" in
2984     alpha|ia64|mips|parisc|sparc)
2985         spic=$shared
2986     ;;
2987     x86)
2988         subarch="x86_32"
2989         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2990         if test "$subarch" = "x86_64"; then
2991             spic=$shared
2992         fi
2993     ;;
2994     ppc)
2995         check_cc <<EOF && subarch="ppc64"
2996         int test[(int)sizeof(char*) - 7];
2997 EOF
2998     ;;
2999 esac
3000
3001 enable $subarch
3002 enabled spic && enable pic
3003
3004 # OS specific
3005 case $target_os in
3006     haiku)
3007         prefix_default="/boot/common"
3008         network_extralibs="-lnetwork"
3009         host_libs=
3010         ;;
3011     sunos)
3012         FFSERVERLDFLAGS=""
3013         SHFLAGS='-shared -Wl,-h,$$(@F)'
3014         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3015         network_extralibs="-lsocket -lnsl"
3016         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3017         # When using suncc to build, the Solaris linker will mark
3018         # an executable with each instruction set encountered by
3019         # the Solaris assembler.  As our libraries contain their own
3020         # guards for processor-specific code, instead suppress
3021         # generation of the HWCAPS ELF section on Solaris x86 only.
3022         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3023         nm_default='nm -P -g'
3024         ;;
3025     netbsd)
3026         disable symver
3027         oss_indev_extralibs="-lossaudio"
3028         oss_outdev_extralibs="-lossaudio"
3029         enabled gcc || check_ldflags -Wl,-zmuldefs
3030         ;;
3031     openbsd|bitrig)
3032         # On OpenBSD 4.5. the compiler does not use PIC unless
3033         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3034         # however the generated executable will not do anything
3035         # (simply quits with exit-code 1, no crash, no output).
3036         # Thus explicitly enable PIC here.
3037         enable pic
3038         disable symver
3039         SHFLAGS='-shared'
3040         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3041         SLIB_INSTALL_LINKS=
3042         oss_indev_extralibs="-lossaudio"
3043         oss_outdev_extralibs="-lossaudio"
3044         ;;
3045     dragonfly)
3046         disable symver
3047         ;;
3048     freebsd)
3049         ;;
3050     bsd/os)
3051         add_extralibs -lpoll -lgnugetopt
3052         strip="strip -d"
3053         ;;
3054     darwin)
3055         gas="gas-preprocessor.pl $cc"
3056         enabled ppc && add_asflags -force_cpusubtype_ALL
3057         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3058         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3059         strip="${strip} -x"
3060         add_ldflags -Wl,-dynamic,-search_paths_first
3061         SLIBSUF=".dylib"
3062         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3063         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3064         FFSERVERLDFLAGS=-Wl,-bind_at_load
3065         objformat="macho"
3066         enabled x86_64 && objformat="macho64"
3067         enabled_any pic shared ||
3068             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3069         ;;
3070     mingw32*)
3071         if test $target_os = "mingw32ce"; then
3072             disable network
3073         else
3074             target_os=mingw32
3075         fi
3076         LIBTARGET=i386
3077         if enabled x86_64; then
3078             LIBTARGET="i386:x86-64"
3079         elif enabled arm; then
3080             LIBTARGET=arm-wince
3081         fi
3082         shlibdir_default="$bindir_default"
3083         SLIBPREF=""
3084         SLIBSUF=".dll"
3085         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3086         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3087         dlltool="${cross_prefix}dlltool"
3088         if check_cmd lib.exe -list; then
3089             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3090             if enabled x86_64; then
3091                 LIBTARGET=x64
3092             fi
3093         elif check_cmd $dlltool --version; then
3094             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3095         fi
3096         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3097         SLIB_INSTALL_LINKS=
3098         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3099         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3100         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3101         objformat="win32"
3102         ranlib=:
3103         enable dos_paths
3104         check_cflags -fno-common
3105         add_cppflags -U__STRICT_ANSI__
3106         ;;
3107     cygwin*)
3108         target_os=cygwin
3109         shlibdir_default="$bindir_default"
3110         SLIBPREF="cyg"
3111         SLIBSUF=".dll"
3112         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3113         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3114         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3115         SLIB_INSTALL_LINKS=
3116         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3117         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3118         objformat="win32"
3119         enable dos_paths
3120         check_cflags -fno-common
3121         add_cppflags -U__STRICT_ANSI__
3122         ;;
3123     *-dos|freedos|opendos)
3124         network_extralibs="-lsocket"
3125         objformat="coff"
3126         enable dos_paths
3127         add_cppflags -U__STRICT_ANSI__
3128         ;;
3129     linux)
3130         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3131         enable dv1394
3132         ;;
3133     irix*)
3134         target_os=irix
3135         ranlib="echo ignoring ranlib"
3136         ;;
3137     os/2*)
3138         strip="lxlite -CS"
3139         ln_s="cp -f"
3140         objformat="aout"
3141         add_cppflags -D_GNU_SOURCE
3142         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3143         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3144         FFSERVERLDFLAGS=""
3145         LIBSUF="_s.a"
3146         SLIBPREF=""
3147         SLIBSUF=".dll"
3148         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3149         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3150         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3151             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3152             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3153             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3154             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3155             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3156         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3157             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3158         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3159         enable dos_paths
3160         enable_weak os2threads
3161         ;;
3162     gnu/kfreebsd)
3163         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
3164         ;;
3165     gnu)
3166         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3167         ;;
3168     qnx)
3169         add_cppflags -D_QNX_SOURCE
3170         network_extralibs="-lsocket"
3171         ;;
3172     symbian)
3173         SLIBSUF=".dll"
3174         enable dos_paths
3175         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3176         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3177         add_ldflags -Wl,--target1-abs,--no-undefined \
3178                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3179                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3180         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3181                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3182                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3183         ;;
3184     none)
3185         ;;
3186     *)
3187         die "Unknown OS '$target_os'."
3188         ;;
3189 esac
3190
3191 # determine libc flavour
3192
3193 if check_cpp_condition features.h "defined __UCLIBC__"; then
3194     libc_type=uclibc
3195 elif check_cpp_condition features.h "defined __GLIBC__"; then
3196     libc_type=glibc
3197 elif check_header _mingw.h; then
3198     libc_type=mingw
3199     check_cpp_condition _mingw.h \
3200         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3201             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3202         die "ERROR: MinGW runtime version must be >= 3.15."
3203     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3204             __MINGW64_VERSION_MAJOR < 3"; then
3205         enable broken_snprintf
3206         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3207     fi
3208 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3209     libc_type=newlib
3210 elif check_func_headers stdlib.h _get_doserrno; then
3211     libc_type=msvcrt
3212     enable broken_snprintf
3213     add_cflags -Dstrtod=avpriv_strtod
3214     add_cflags -Dsnprintf=avpriv_snprintf   \
3215                -D_snprintf=avpriv_snprintf  \
3216                -Dvsnprintf=avpriv_vsnprintf
3217 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3218     libc_type=klibc
3219 fi
3220
3221 test -n "$libc_type" && enable $libc_type
3222
3223 esc(){
3224     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3225 }
3226
3227 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3228
3229 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3230
3231 set_default $PATHS_LIST
3232 set_default nm
3233
3234 # we need to build at least one lib type
3235 if ! enabled_any static shared; then
3236     cat <<EOF
3237 At least one library type must be built.
3238 Specify --enable-static to build the static libraries or --enable-shared to
3239 build the shared libraries as well. To only build the shared libraries specify
3240 --disable-static in addition to --enable-shared.
3241 EOF
3242     exit 1;
3243 fi
3244
3245 die_license_disabled() {
3246     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3247 }
3248
3249 die_license_disabled_gpl() {
3250     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3251 }
3252
3253 die_license_disabled gpl libcdio
3254 die_license_disabled gpl libutvideo
3255 die_license_disabled gpl libx264
3256 die_license_disabled gpl libxavs
3257 die_license_disabled gpl libxvid
3258 die_license_disabled gpl x11grab
3259
3260 die_license_disabled nonfree libaacplus
3261 die_license_disabled nonfree libfaac
3262 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3263 enabled gpl && die_license_disabled_gpl nonfree openssl
3264
3265 die_license_disabled version3 libopencore_amrnb
3266 die_license_disabled version3 libopencore_amrwb
3267 die_license_disabled version3 libvo_aacenc
3268 die_license_disabled version3 libvo_amrwbenc
3269
3270 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3271
3272 disabled optimizations || check_cflags -fomit-frame-pointer
3273
3274 enable_pic() {
3275     enable pic
3276     add_cppflags -DPIC
3277     add_cflags   -fPIC
3278     add_asflags  -fPIC
3279 }
3280
3281 enabled pic && enable_pic
3282
3283 check_cc <<EOF || die "Symbol mangling check failed."
3284 int ff_extern;
3285 EOF
3286 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3287 extern_prefix=${sym%%ff_extern*}
3288
3289 check_cc <<EOF && enable_weak inline_asm
3290 void foo(void) { __asm__ volatile ("" ::); }
3291 EOF
3292
3293 _restrict=
3294 for restrict_keyword in restrict __restrict__ __restrict; do
3295     check_cc <<EOF && _restrict=$restrict_keyword && break
3296 void foo(char * $restrict_keyword p);
3297 EOF
3298 done
3299
3300 check_cc <<EOF && enable attribute_packed
3301 struct { int x; } __attribute__((packed)) x;
3302 EOF
3303
3304 check_cc <<EOF && enable attribute_may_alias
3305 union { int x; } __attribute__((may_alias)) x;
3306 EOF
3307
3308 check_cc <<EOF || die "endian test failed"
3309 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3310 EOF
3311 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3312
3313 if enabled alpha; then
3314
3315     check_cflags -mieee
3316
3317 elif enabled arm; then
3318
3319     enabled thumb && check_cflags -mthumb || check_cflags -marm
3320     nogas=die
3321
3322     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3323         enable vfp_args
3324     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3325         case "${cross_prefix:-$cc}" in
3326             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3327             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3328 __asm__ (".eabi_attribute 28, 1");
3329 int main(void) { return 0; }
3330 EOF
3331         esac
3332         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3333     fi
3334
3335     enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3336     enabled armv6   && check_inline_asm armv6   '"sadd16 r0, r0, r0"'
3337     enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3338     enabled armvfp  && check_inline_asm armvfp  '"fadds s0, s0, s0"'
3339     enabled neon    && check_inline_asm neon    '"vadd.i16 q0, q0, q0"'
3340     enabled vfpv3   && check_inline_asm vfpv3   '"vmov.f32 s0, #1.0"'
3341
3342     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3343     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3344
3345     enabled_all armv6t2 shared !pic && enable_pic
3346
3347 elif enabled mips; then
3348
3349     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3350     enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3351     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3352      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3353     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3354      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3355     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3356      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3357     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3358      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3359
3360 elif enabled ppc; then
3361
3362     enable local_aligned_8 local_aligned_16
3363
3364     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3365     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3366     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3367     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3368
3369     # AltiVec flags: The FSF version of GCC differs from the Apple version
3370     if enabled altivec; then
3371         nogas=warn
3372         check_cflags -maltivec -mabi=altivec &&
3373         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3374         check_cflags -faltivec
3375
3376         # check if our compiler supports Motorola AltiVec C API
3377         check_cc <<EOF || disable altivec
3378 $inc_altivec_h
3379 int main(void) {
3380     vector signed int v1 = (vector signed int) { 0 };
3381     vector signed int v2 = (vector signed int) { 1 };
3382     v1 = vec_add(v1, v2);
3383     return 0;
3384 }
3385 EOF
3386
3387         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3388     fi
3389
3390 elif enabled sparc; then
3391
3392     enabled vis &&
3393         check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3394             add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3395
3396 elif enabled x86; then
3397
3398     check_code ld immintrin.h "return __xgetbv(0)" "cc" && enable xgetbv
3399     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3400     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3401     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3402
3403     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3404
3405     enable local_aligned_8 local_aligned_16
3406
3407     # check whether EBP is available on x86
3408     # As 'i' is stored on the stack, this program will crash
3409     # if the base pointer is used to access it because the
3410     # base pointer is cleared in the inline assembly code.
3411     check_exec_crash <<EOF && enable ebp_available
3412 volatile int i=0;
3413 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3414 return i;
3415 EOF
3416
3417     # check whether EBX is available on x86
3418     check_inline_asm ebx_available '""::"b"(0)' &&
3419         check_inline_asm ebx_available '"":::"%ebx"'
3420
3421     # check whether xmm clobbers are supported
3422     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3423
3424     # check whether binutils is new enough to compile SSSE3/MMXEXT
3425     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3426     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3427
3428     if ! disabled_any asm mmx yasm; then
3429         if check_cmd $yasmexe --version; then
3430             enabled x86_64 && yasm_extra="-m amd64"
3431             yasm_debug="-g dwarf2"
3432         elif check_cmd nasm -v; then
3433             yasmexe=nasm
3434             yasm_debug="-g -F dwarf"
3435             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3436         fi
3437
3438         YASMFLAGS="-f $objformat $yasm_extra"
3439         enabled pic               && append YASMFLAGS "-DPIC"
3440         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3441         case "$objformat" in
3442             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3443         esac
3444
3445         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3446             die "yasm not found, use --disable-yasm for a crippled build"
3447         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3448         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3449         check_yasm "CPU amdnop" && enable cpunop
3450     fi
3451
3452     case "$cpu" in
3453         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3454             disable fast_clz
3455         ;;
3456     esac
3457
3458 fi
3459
3460 if enabled asm; then
3461     as=${gas:=$as}
3462     check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3463         $nogas "GNU assembler not found, install gas-preprocessor"
3464 fi
3465
3466 check_ldflags -Wl,--as-needed
3467
3468 if check_func dlopen; then
3469     ldl=
3470 elif check_func dlopen -ldl; then
3471     ldl=-ldl
3472 fi
3473
3474 if enabled network; then
3475     check_type "sys/types.h sys/socket.h" socklen_t
3476     check_type netdb.h "struct addrinfo"
3477     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3478     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3479     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3480     check_type netinet/in.h "struct sockaddr_in6"
3481     check_type poll.h "struct pollfd"
3482     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3483     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3484     check_type netinet/sctp.h "struct sctp_event_subscribe"
3485     check_func getaddrinfo $network_extralibs
3486     # Prefer arpa/inet.h over winsock2
3487     if check_header arpa/inet.h ; then
3488         check_func closesocket
3489     elif check_header winsock2.h ; then
3490         check_func_headers winsock2.h closesocket -lws2 &&
3491             network_extralibs="-lws2" ||
3492         { check_func_headers winsock2.h closesocket -lws2_32 &&
3493             network_extralibs="-lws2_32"; }
3494         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3495         check_type ws2tcpip.h socklen_t
3496         check_type ws2tcpip.h "struct addrinfo"
3497         check_type ws2tcpip.h "struct group_source_req"
3498         check_type ws2tcpip.h "struct ip_mreq_source"
3499         check_type ws2tcpip.h "struct ipv6_mreq"
3500         check_type winsock2.h "struct pollfd"
3501         check_type ws2tcpip.h "struct sockaddr_in6"
3502         check_type ws2tcpip.h "struct sockaddr_storage"
3503         check_struct winsock2.h "struct sockaddr" sa_len
3504     else
3505         disable network
3506     fi
3507 fi
3508
3509 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3510 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3511
3512 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3513 check_func  fcntl
3514 check_func  fork
3515 check_func  gethrtime
3516 check_func  getopt
3517 check_func  getrusage
3518 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3519 check_func  gettimeofday
3520 check_func  inet_aton $network_extralibs
3521 check_func  isatty
3522 check_func  localtime_r
3523 check_func  ${malloc_prefix}memalign            && enable memalign
3524 check_func  mkstemp
3525 check_func  mmap
3526 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3527 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3528 check_func  setrlimit
3529 check_func  strerror_r
3530 check_func  sched_getaffinity
3531 check_func  sysconf
3532 check_func  sysctl
3533 check_func  usleep
3534 check_func_headers conio.h kbhit
3535 check_func_headers windows.h PeekNamedPipe
3536 check_func_headers io.h setmode
3537 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3538 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3539 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3540 check_func_headers windows.h GetProcessAffinityMask
3541 check_func_headers windows.h GetProcessTimes
3542 check_func_headers windows.h GetSystemTimeAsFileTime
3543 check_func_headers windows.h MapViewOfFile
3544 check_func_headers windows.h Sleep
3545 check_func_headers windows.h VirtualAlloc
3546 check_func_headers glob.h glob
3547
3548 check_header direct.h
3549 check_header dlfcn.h
3550 check_header dxva.h
3551 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3552 check_header io.h
3553 check_header libcrystalhd/libcrystalhd_if.h
3554 check_header malloc.h
3555 check_header poll.h
3556 check_header sys/mman.h
3557 check_header sys/param.h
3558 check_header sys/resource.h
3559 check_header sys/select.h
3560 check_header sys/time.h
3561 check_header termios.h
3562 check_header unistd.h
3563 check_header vdpau/vdpau.h
3564 check_header vdpau/vdpau_x11.h
3565 check_header windows.h
3566 check_header X11/extensions/XvMClib.h
3567 check_header asm/types.h
3568
3569 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3570 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3571
3572 # check for VDA header
3573 if ! disabled vda && ! enabled ppc; then
3574     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3575         enable vda
3576         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3577     fi
3578 fi
3579
3580 if ! disabled w32threads && ! enabled pthreads; then
3581     check_func _beginthreadex && enable w32threads
3582 fi
3583
3584 # check for some common methods of building with pthread support
3585 # do this before the optional library checks as some of them require pthreads
3586 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3587     enable pthreads
3588     if check_func pthread_create; then
3589         :
3590     elif check_func pthread_create -pthread; then
3591         add_cflags -pthread
3592         add_extralibs -pthread
3593     elif check_func pthread_create -pthreads; then
3594         add_cflags -pthreads
3595         add_extralibs -pthreads
3596     elif check_func pthread_create -lpthreadGC2; then
3597         add_extralibs -lpthreadGC2
3598     elif ! check_lib pthread.h pthread_create -lpthread; then
3599         disable pthreads
3600     fi
3601 fi
3602
3603 for thread in $THREADS_LIST; do
3604     if enabled $thread; then
3605         test -n "$thread_type" &&
3606             die "ERROR: Only one thread type must be selected." ||
3607             thread_type="$thread"
3608     fi
3609 done
3610
3611 if enabled pthreads; then
3612   check_func pthread_cancel
3613 fi
3614
3615 check_lib math.h sin -lm && LIBM="-lm"
3616 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3617 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3618
3619 check_mathfunc cbrtf
3620 check_mathfunc exp2
3621 check_mathfunc exp2f
3622 check_mathfunc isinf
3623 check_mathfunc isnan
3624 check_mathfunc llrint
3625 check_mathfunc llrintf
3626 check_mathfunc log2
3627 check_mathfunc log2f
3628 check_mathfunc lrint
3629 check_mathfunc lrintf
3630 check_mathfunc rint
3631 check_mathfunc round
3632 check_mathfunc roundf
3633 check_mathfunc trunc
3634 check_mathfunc truncf
3635
3636 # these are off by default, so fail if requested and not available
3637 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3638 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3639 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3640 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3641 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3642 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3643 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3644 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3645 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3646                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3647                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3648 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3649 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3650 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3651 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
3652 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3653 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3654 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3655 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3656 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3657 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3658 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3659 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3660 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3661 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3662 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3663 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3664 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3665 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3666 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3667 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3668 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3669     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3670     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3671 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3672 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3673                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3674                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3675 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3676 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3677 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3678 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3679 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3680 enabled libvpx     && {
3681     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3682                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3683     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3684                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3685 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3686                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3687                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3688 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3689 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3690 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3691                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3692                         die "ERROR: openal not found"; } &&
3693                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3694                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3695 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3696                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3697                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3698                         die "ERROR: openssl not found"; }
3699
3700 if enabled gnutls; then
3701     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3702     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3703 fi
3704
3705 # libdc1394 check
3706 if enabled libdc1394; then
3707     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3708         enable libdc1394_2; } ||
3709     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3710         enable libdc1394_1; } ||
3711     die "ERROR: No version of libdc1394 found "
3712 fi
3713
3714 SDL_CONFIG="${cross_prefix}sdl-config"
3715 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3716     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3717     enable sdl &&
3718     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3719 else
3720   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3721     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3722     sdl_libs=$("${SDL_CONFIG}" --libs)
3723     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3724     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3725     enable sdl &&
3726     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3727   fi
3728 fi
3729 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3730
3731 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3732 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3733 perl --version > /dev/null 2>&1 && enable perl || disable perl
3734 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3735
3736 check_header linux/fb.h
3737 check_header linux/videodev.h
3738 check_header linux/videodev2.h
3739 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3740
3741 check_header sys/videoio.h
3742
3743 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3744 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3745 # w32api 3.12 had it defined wrong
3746 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3747
3748 check_type "dshow.h" IBaseFilter
3749
3750 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3751 { check_header dev/bktr/ioctl_meteor.h &&
3752   check_header dev/bktr/ioctl_bt848.h; } ||
3753 { check_header machine/ioctl_meteor.h &&
3754   check_header machine/ioctl_bt848.h; } ||
3755 { check_header dev/video/meteor/ioctl_meteor.h &&
3756   check_header dev/video/bktr/ioctl_bt848.h; } ||
3757 check_header dev/ic/bt8xx.h
3758
3759 check_header sndio.h
3760 if check_struct sys/soundcard.h audio_buf_info bytes; then
3761     enable_safe sys/soundcard.h
3762 else
3763     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3764     #include <sys/soundcard.h>
3765     audio_buf_info abc;
3766 EOF
3767 fi
3768 check_header soundcard.h
3769
3770 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3771
3772 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3773     check_func jack_port_get_latency_range -ljack
3774
3775 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3776
3777 enabled libcdio &&
3778     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3779
3780 enabled x11grab                                           &&
3781 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3782 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3783 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3784
3785 if ! disabled vaapi; then
3786     check_lib va/va.h vaInitialize -lva && {
3787         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3788         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3789     } || disable vaapi
3790 fi
3791
3792 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3793     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3794         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3795 fi
3796
3797 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3798 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3799 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"
3800
3801 # add some useful compiler flags if supported
3802 check_cflags -Wdeclaration-after-statement
3803 check_cflags -Wall
3804 check_cflags -Wno-parentheses
3805 check_cflags -Wno-switch
3806 check_cflags -Wno-format-zero-length
3807 check_cflags -Wdisabled-optimization
3808 check_cflags -Wpointer-arith
3809 check_cflags -Wredundant-decls
3810 check_cflags -Wno-pointer-sign
3811 check_cflags -Wwrite-strings
3812 check_cflags -Wtype-limits
3813 check_cflags -Wundef
3814 check_cflags -Wmissing-prototypes
3815 check_cflags -Wno-pointer-to-int-cast
3816 check_cflags -Wstrict-prototypes
3817 enabled extra_warnings && check_cflags -Winline
3818
3819 # add some linker flags
3820 check_ldflags -Wl,--warn-common
3821 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3822 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3823
3824 enabled xmm_clobber_test &&
3825     check_ldflags -Wl,--wrap,avcodec_open2              \
3826                   -Wl,--wrap,avcodec_decode_audio4      \
3827                   -Wl,--wrap,avcodec_decode_video2      \
3828                   -Wl,--wrap,avcodec_decode_subtitle2   \
3829                   -Wl,--wrap,avcodec_encode_audio2      \
3830                   -Wl,--wrap,avcodec_encode_video       \
3831                   -Wl,--wrap,avcodec_encode_subtitle    \
3832                   -Wl,--wrap,sws_scale ||
3833     disable xmm_clobber_test
3834
3835 echo "X{};" > $TMPV
3836 if test_ldflags -Wl,--version-script,$TMPV; then
3837     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3838     check_cc <<EOF && enable symver_asm_label
3839 void ff_foo(void) __asm__ ("av_foo@VERSION");
3840 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3841 EOF
3842     check_cc <<EOF && enable symver_gnu_asm
3843 __asm__(".symver ff_foo,av_foo@VERSION");
3844 void ff_foo(void) {}
3845 EOF
3846 fi
3847
3848 if [ -n "$optflags" ]; then
3849     add_cflags $optflags
3850 elif enabled small; then
3851     add_cflags $cflags_size
3852 elif enabled optimizations; then
3853     add_cflags $cflags_speed
3854 else
3855     add_cflags $cflags_noopt
3856 fi
3857 check_cflags -fno-math-errno
3858 check_cflags -fno-signed-zeros
3859 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3860 int x;
3861 EOF
3862
3863
3864 if enabled icc; then
3865     # Just warnings, no remarks
3866     check_cflags -w1
3867     # -wd: Disable following warnings
3868     # 144, 167, 556: -Wno-pointer-sign
3869     # 1292: attribute "foo" ignored
3870     # 1419: external declaration in primary source file
3871     # 10006: ignoring unknown option -fno-signed-zeros
3872     # 10148: ignoring unknown option -Wno-parentheses
3873     # 10156: ignoring option '-W'; no argument required
3874     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3875     # 11030: Warning unknown option --as-needed
3876     # 10156: ignoring option '-export'; no argument required
3877     check_ldflags -wd10156,11030
3878     # Allow to compile with optimizations
3879     check_ldflags -march=$cpu
3880     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3881     enable ebp_available
3882     if enabled x86_32; then
3883         icc_version=$($cc -dumpversion)
3884         test ${icc_version%%.*} -ge 11 &&
3885             check_cflags -falign-stack=maintain-16-byte ||
3886             disable aligned_stack
3887     fi
3888 elif enabled ccc; then
3889     # disable some annoying warnings
3890     add_cflags -msg_disable cvtu32to64
3891     add_cflags -msg_disable embedcomment
3892     add_cflags -msg_disable needconstext
3893     add_cflags -msg_disable nomainieee
3894     add_cflags -msg_disable ptrmismatch1
3895     add_cflags -msg_disable unreachcode
3896 elif enabled gcc; then
3897     check_cflags -fno-tree-vectorize
3898     check_cflags -Werror=implicit-function-declaration
3899     check_cflags -Werror=missing-prototypes
3900 elif enabled llvm_gcc; then
3901     check_cflags -mllvm -stack-alignment=16
3902 elif enabled clang; then
3903     check_cflags -mllvm -stack-alignment=16
3904     check_cflags -Qunused-arguments
3905 elif enabled armcc; then
3906     # 2523: use of inline assembler is deprecated
3907     add_cflags -W${armcc_opt},--diag_suppress=2523
3908     add_cflags -W${armcc_opt},--diag_suppress=1207
3909     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3910     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3911     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3912     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3913 elif enabled tms470; then
3914     add_cflags -pds=824 -pds=837
3915 elif enabled pathscale; then
3916     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3917 elif enabled msvc; then
3918     enabled x86_32 && disable aligned_stack
3919 fi
3920
3921 enabled_any $THREADS_LIST      && enable threads
3922
3923 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3924
3925 check_deps $CONFIG_LIST       \
3926            $CONFIG_EXTRA      \
3927            $HAVE_LIST         \
3928            $ALL_COMPONENTS    \
3929            $ALL_TESTS         \
3930
3931
3932 if test $target_os = "haiku"; then
3933     disable memalign
3934     disable posix_memalign
3935 fi
3936
3937 ! enabled_any memalign posix_memalign aligned_malloc &&
3938     enabled_any $need_memalign && enable memalign_hack
3939
3940 # add_dep lib dep
3941 # -> enable ${lib}_deps_${dep}
3942 # -> add $dep to ${lib}_deps only once
3943 add_dep() {
3944     lib=$1
3945     dep=$2
3946     enabled "${lib}_deps_${dep}" && return 0
3947     enable  "${lib}_deps_${dep}"
3948     prepend "${lib}_deps" $dep
3949 }
3950
3951 # merge deps lib components
3952 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3953 merge_deps() {
3954     lib=$1
3955     shift
3956     for comp in $*; do
3957         enabled $comp || continue
3958         eval "dep=\"\$${comp}_deps\""
3959         for d in $dep; do
3960             add_dep $lib $d
3961         done
3962     done
3963 }
3964
3965 merge_deps libavfilter $FILTER_LIST
3966
3967 echo "install prefix            $prefix"
3968 echo "source path               $source_path"
3969 echo "C compiler                $cc"
3970 echo "ARCH                      $arch ($cpu)"
3971 if test "$build_suffix" != ""; then
3972     echo "build suffix              $build_suffix"
3973 fi
3974 if test "$progs_suffix" != ""; then
3975     echo "progs suffix              $progs_suffix"
3976 fi
3977 if test "$extra_version" != ""; then
3978     echo "version string suffix     $extra_version"
3979 fi
3980 echo "big-endian                ${bigendian-no}"
3981 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3982 if enabled x86; then
3983     echo "${yasmexe}                      ${yasm-no}"
3984     echo "MMX enabled               ${mmx-no}"
3985     echo "MMXEXT enabled            ${mmxext-no}"
3986     echo "3DNow! enabled            ${amd3dnow-no}"
3987     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3988     echo "SSE enabled               ${sse-no}"
3989     echo "SSSE3 enabled             ${ssse3-no}"
3990     echo "AVX enabled               ${avx-no}"
3991     echo "FMA4 enabled              ${fma4-no}"
3992     echo "CMOV enabled              ${cmov-no}"
3993     echo "CMOV is fast              ${fast_cmov-no}"
3994     echo "EBX available             ${ebx_available-no}"
3995     echo "EBP available             ${ebp_available-no}"
3996 fi
3997 if enabled arm; then
3998     echo "ARMv5TE enabled           ${armv5te-no}"
3999     echo "ARMv6 enabled             ${armv6-no}"
4000     echo "ARMv6T2 enabled           ${armv6t2-no}"
4001     echo "ARM VFP enabled           ${armvfp-no}"
4002     echo "NEON enabled              ${neon-no}"
4003 fi
4004 if enabled mips; then
4005     echo "MMI enabled               ${mmi-no}"
4006     echo "MIPS FPU enabled          ${mipsfpu-no}"
4007     echo "MIPS32R2 enabled          ${mips32r2-no}"
4008     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4009     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4010 fi
4011 if enabled ppc; then
4012     echo "AltiVec enabled           ${altivec-no}"
4013     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4014     echo "dcbzl available           ${dcbzl-no}"
4015 fi
4016 if enabled sparc; then
4017     echo "VIS enabled               ${vis-no}"
4018 fi
4019 echo "debug symbols             ${debug-no}"
4020 echo "strip symbols             ${stripping-no}"
4021 echo "optimize for size         ${small-no}"
4022 echo "optimizations             ${optimizations-no}"
4023 echo "static                    ${static-no}"
4024 echo "shared                    ${shared-no}"
4025 echo "postprocessing support    ${postproc-no}"
4026 echo "new filter support        ${avfilter-no}"
4027 echo "network support           ${network-no}"
4028 echo "threading support         ${thread_type-no}"
4029 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4030 echo "SDL support               ${sdl-no}"
4031 echo "libdxva2 enabled          ${dxva2-no}"
4032 echo "libva enabled             ${vaapi-no}"
4033 echo "libvdpau enabled          ${vdpau-no}"
4034 echo "AVISynth enabled          ${avisynth-no}"
4035 echo "frei0r enabled            ${frei0r-no}"
4036 echo "gnutls enabled            ${gnutls-no}"
4037 echo "libaacplus enabled        ${libaacplus-no}"
4038 echo "libass enabled            ${libass-no}"
4039 echo "libcaca enabled           ${libcaca-no}"
4040 echo "libcdio support           ${libcdio-no}"
4041 echo "libcelt enabled           ${libcelt-no}"
4042 echo "libdc1394 support         ${libdc1394-no}"
4043 echo "libfaac enabled           ${libfaac-no}"
4044 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4045 echo "libgsm enabled            ${libgsm-no}"
4046 echo "libiec61883 support       ${libiec61883-no}"
4047 echo "libilbc enabled           ${libilbc-no}"
4048 echo "libmodplug enabled        ${libmodplug-no}"
4049 echo "libmp3lame enabled        ${libmp3lame-no}"
4050 echo "libnut enabled            ${libnut-no}"
4051 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4052 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4053 echo "libopencv support         ${libopencv-no}"
4054 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4055 echo "libopus enabled           ${libopus-no}"
4056 echo "libpulse enabled          ${libpulse-no}"
4057 echo "librtmp enabled           ${librtmp-no}"
4058 echo "libschroedinger enabled   ${libschroedinger-no}"
4059 echo "libspeex enabled          ${libspeex-no}"
4060 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4061 echo "libtheora enabled         ${libtheora-no}"
4062 echo "libtwolame enabled        ${libtwolame-no}"
4063 echo "libutvideo enabled        ${libutvideo-no}"
4064 echo "libv4l2 enabled           ${libv4l2-no}"
4065 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4066 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4067 echo "libvorbis enabled         ${libvorbis-no}"
4068 echo "libvpx enabled            ${libvpx-no}"
4069 echo "libx264 enabled           ${libx264-no}"
4070 echo "libxavs enabled           ${libxavs-no}"
4071 echo "libxvid enabled           ${libxvid-no}"
4072 echo "openal enabled            ${openal-no}"
4073 echo "openssl enabled           ${openssl-no}"
4074 echo "zlib enabled              ${zlib-no}"
4075 echo "bzlib enabled             ${bzlib-no}"
4076 echo "texi2html enabled         ${texi2html-no}"
4077 echo "perl enabled              ${perl-no}"
4078 echo "pod2man enabled           ${pod2man-no}"
4079 echo "makeinfo enabled          ${makeinfo-no}"
4080 test -n "$random_seed" &&
4081     echo "random seed               ${random_seed}"
4082 echo
4083
4084 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4085     echo "Enabled ${type}s:"
4086     eval list=\$$(toupper $type)_LIST
4087     print_enabled '_*' $list | sort | pr -r -3 -t
4088     echo
4089 done
4090
4091 license="LGPL version 2.1 or later"
4092 if enabled nonfree; then
4093     license="nonfree and unredistributable"
4094 elif enabled gplv3; then
4095     license="GPL version 3 or later"
4096 elif enabled lgplv3; then
4097     license="LGPL version 3 or later"
4098 elif enabled gpl; then
4099     license="GPL version 2 or later"
4100 fi
4101
4102 echo "License: $license"
4103
4104 echo "Creating config.mak and config.h..."
4105
4106 test -e Makefile || $ln_s "$source_path/Makefile" .
4107
4108 enabled stripping || strip="echo skipping strip"
4109
4110 config_files="$TMPH config.mak"
4111
4112 cat > config.mak <<EOF
4113 # Automatically generated by configure - do not modify!
4114 ifndef FFMPEG_CONFIG_MAK
4115 FFMPEG_CONFIG_MAK=1
4116 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4117 prefix=$prefix
4118 LIBDIR=\$(DESTDIR)$libdir
4119 SHLIBDIR=\$(DESTDIR)$shlibdir
4120 INCDIR=\$(DESTDIR)$incdir
4121 BINDIR=\$(DESTDIR)$bindir
4122 DATADIR=\$(DESTDIR)$datadir
4123 MANDIR=\$(DESTDIR)$mandir
4124 SRC_PATH=$source_path
4125 ifndef MAIN_MAKEFILE
4126 SRC_PATH:=\$(SRC_PATH:.%=..%)
4127 endif
4128 CC_IDENT=$cc_ident
4129 ARCH=$arch
4130 CC=$cc
4131 CXX=$cxx
4132 AS=$as
4133 LD=$ld
4134 DEPCC=$dep_cc
4135 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4136 DEPAS=$as
4137 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4138 YASM=$yasmexe
4139 DEPYASM=$yasmexe
4140 AR=$ar
4141 ARFLAGS=$arflags
4142 AR_O=$ar_o
4143 RANLIB=$ranlib
4144 CP=cp -p
4145 LN_S=$ln_s
4146 STRIP=$strip
4147 CPPFLAGS=$CPPFLAGS
4148 CFLAGS=$CFLAGS
4149 CXXFLAGS=$CXXFLAGS
4150 ASFLAGS=$ASFLAGS
4151 AS_C=$AS_C
4152 AS_O=$AS_O
4153 CC_C=$CC_C
4154 CC_O=$CC_O
4155 CXX_C=$CXX_C
4156 CXX_O=$CXX_O
4157 LD_O=$LD_O
4158 LD_LIB=$LD_LIB
4159 LD_PATH=$LD_PATH
4160 DLLTOOL=$dlltool
4161 LDFLAGS=$LDFLAGS
4162 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4163 SHFLAGS=$SHFLAGS
4164 YASMFLAGS=$YASMFLAGS
4165 BUILDSUF=$build_suffix
4166 PROGSSUF=$progs_suffix
4167 FULLNAME=$FULLNAME
4168 LIBPREF=$LIBPREF
4169 LIBSUF=$LIBSUF
4170 LIBNAME=$LIBNAME
4171 SLIBPREF=$SLIBPREF
4172 SLIBSUF=$SLIBSUF
4173 EXESUF=$EXESUF
4174 EXTRA_VERSION=$extra_version
4175 CCDEP=$CCDEP
4176 CXXDEP=$CXXDEP
4177 CCDEP_FLAGS=$CCDEP_FLAGS
4178 ASDEP=$ASDEP
4179 ASDEP_FLAGS=$ASDEP_FLAGS
4180 CC_DEPFLAGS=$CC_DEPFLAGS
4181 AS_DEPFLAGS=$AS_DEPFLAGS
4182 HOSTCC=$host_cc
4183 HOSTLD=$host_ld
4184 HOSTCFLAGS=$host_cflags
4185 HOSTEXESUF=$HOSTEXESUF
4186 HOSTLDFLAGS=$host_ldflags
4187 HOSTLIBS=$host_libs
4188 DEPHOSTCC=$host_cc
4189 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4190 HOSTCCDEP=$HOSTCCDEP
4191 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4192 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4193 HOSTCC_C=$HOSTCC_C
4194 HOSTCC_O=$HOSTCC_O
4195 HOSTLD_O=$HOSTLD_O
4196 TARGET_EXEC=$target_exec
4197 TARGET_PATH=$target_path
4198 LIBS-ffplay=$sdl_libs
4199 CFLAGS-ffplay=$sdl_cflags
4200 ZLIB=$($ldflags_filter -lz)
4201 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4202 EXTRALIBS=$extralibs
4203 INSTALL=$install
4204 LIBTARGET=${LIBTARGET}
4205 SLIBNAME=${SLIBNAME}
4206 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4207 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4208 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4209 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4210 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4211 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4212 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4213 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4214 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4215 NOREDZONE_FLAGS=$noredzone_flags
4216 EOF
4217
4218 get_version(){
4219     lcname=$1
4220     name=$(toupper $lcname)
4221     file=$source_path/$lcname/version.h
4222     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4223     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4224     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4225     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4226 }
4227
4228 get_version_old(){
4229     name=$1
4230     file=$source_path/$2
4231 # This condition will be removed when we stop supporting old libpostproc versions
4232 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4233     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4234     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4235 fi
4236     lcname=$(tolower $name)
4237     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4238     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4239 }
4240
4241 get_version_old LIBPOSTPROC libpostproc/version.h
4242
4243 get_version libavcodec
4244 get_version libavdevice
4245 get_version libavfilter
4246 get_version libavformat
4247 get_version libavresample
4248 get_version libavutil
4249 get_version libswresample
4250 get_version libswscale
4251
4252 cat > $TMPH <<EOF
4253 /* Automatically generated by configure - do not modify! */
4254 #ifndef FFMPEG_CONFIG_H
4255 #define FFMPEG_CONFIG_H
4256 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4257 #define FFMPEG_LICENSE "$(c_escape $license)"
4258 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4259 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4260 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4261 #define av_restrict $_restrict
4262 #define EXTERN_PREFIX "${extern_prefix}"
4263 #define EXTERN_ASM ${extern_prefix}
4264 #define SLIBSUF "$SLIBSUF"
4265 #define HAVE_MMX2 HAVE_MMXEXT
4266 EOF
4267
4268 test -n "$assert_level" &&
4269     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4270
4271 test -n "$malloc_prefix" &&
4272     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4273
4274 if enabled yasm; then
4275     append config_files $TMPASM
4276     printf '' >$TMPASM
4277 fi
4278
4279 print_config ARCH_   "$config_files" $ARCH_LIST
4280 print_config HAVE_   "$config_files" $HAVE_LIST
4281 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4282                                      $CONFIG_EXTRA      \
4283                                      $ALL_COMPONENTS    \
4284
4285 cat >>config.mak <<EOF
4286 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
4287 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
4288 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
4289 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
4290 EOF
4291
4292 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4293 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4294
4295 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4296 cp_if_changed $TMPH config.h
4297 touch .config
4298
4299 enabled yasm && cp_if_changed $TMPASM config.asm
4300
4301 cat > $TMPH <<EOF
4302 /* Generated by ffconf */
4303 #ifndef AVUTIL_AVCONFIG_H
4304 #define AVUTIL_AVCONFIG_H
4305 EOF
4306
4307 test "$postproc_version" != current && cat >> $TMPH <<EOF
4308 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4309 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4310 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4311 EOF
4312
4313 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4314
4315 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4316
4317 cp_if_changed $TMPH libavutil/avconfig.h
4318
4319 test -n "$WARNINGS" && printf "\n$WARNINGS"
4320
4321 # build pkg-config files
4322
4323 pkgconfig_generate(){
4324     name=$1
4325     shortname=${name#lib}${build_suffix}
4326     comment=$2
4327     version=$3
4328     libs=$4
4329     requires=$5
4330     enabled ${name#lib} || return 0
4331     mkdir -p $name
4332     cat <<EOF > $name/$name.pc
4333 prefix=$prefix
4334 exec_prefix=\${prefix}
4335 libdir=$libdir
4336 includedir=$incdir
4337
4338 Name: $name
4339 Description: $comment
4340 Version: $version
4341 Requires: $(enabled shared || echo $requires)
4342 Requires.private: $(enabled shared && echo $requires)
4343 Conflicts:
4344 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4345 Libs.private: $(enabled shared && echo $libs)
4346 Cflags: -I\${includedir}
4347 EOF
4348
4349 mkdir -p doc/examples/pc-uninstalled
4350 includedir=${source_path}
4351 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4352     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4353 prefix=
4354 exec_prefix=
4355 libdir=\${pcfiledir}/../../../$name
4356 includedir=${includedir}
4357
4358 Name: $name
4359 Description: $comment
4360 Version: $version
4361 Requires: $requires
4362 Conflicts:
4363 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4364 Cflags: -I\${includedir}
4365 EOF
4366 }
4367
4368 libavfilter_pc_deps=""
4369 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4370 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4371 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4372 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4373 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4374 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4375
4376 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4377 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4378
4379 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4380 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4381 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4382 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4383 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4384 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4385 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4386 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4387 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4388
4389 fix_ffmpeg_remote(){
4390     git_remote_from=$1
4391     git_remote_to=$2
4392     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4393     if [ "$fixme_remote" != "" ]; then
4394         echolog "
4395 Outdated domain in git config, the official domain for ffmpeg git is since
4396 November 2011, source.ffmpeg.org, both the old and the new point to the same
4397 repository and server. To update it enter the following commands:
4398 "
4399         for remote in $fixme_remote; do
4400             echolog "git remote set-url $remote $git_remote_to"
4401         done
4402     fi
4403 }
4404
4405 if test -f "$source_path/.git/config"; then
4406     remote_from=git.videolan.org
4407     remote_to=source.ffmpeg.org
4408     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4409     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4410 fi