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 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --fatal-warnings         fail if any configure warning is generated
  82   --prefix=PREFIX          install in PREFIX [$prefix]
  83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  85   --libdir=DIR             install libs in DIR [PREFIX/lib]
  86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  87   --incdir=DIR             install includes in DIR [PREFIX/include]
  88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  89
  90 Licensing options:
  91   --enable-gpl             allow use of GPL code, the resulting libs
  92                            and binaries will be under GPL [no]
  93   --enable-version3        upgrade (L)GPL to version 3 [no]
  94   --enable-nonfree         allow use of nonfree code, the resulting libs
  95                            and binaries will be unredistributable [no]
  96
  97 Configuration options:
  98   --disable-static         do not build static libraries [no]
  99   --enable-shared          build shared libraries [no]
 100   --enable-small           optimize for size instead of speed
 101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
 102   --enable-gray            enable full grayscale support (slower color)
 103   --disable-swscale-alpha  disable alpha channel support in swscale
 104   --disable-all            disable building components, libraries and programs
 105
 106 Program options:
 107   --disable-programs       do not build command line programs
 108   --disable-ffmpeg         disable ffmpeg build
 109   --disable-ffplay         disable ffplay build
 110   --disable-ffprobe        disable ffprobe build
 111   --disable-ffserver       disable ffserver build
 112
 113 Documentation options:
 114   --disable-doc            do not build documentation
 115   --disable-htmlpages      do not build HTML documentation pages
 116   --disable-manpages       do not build man documentation pages
 117   --disable-podpages       do not build POD documentation pages
 118   --disable-txtpages       do not build text documentation pages
 119
 120 Component options:
 121   --disable-avdevice       disable libavdevice build
 122   --disable-avcodec        disable libavcodec build
 123   --disable-avformat       disable libavformat build
 124   --disable-avutil         disable libavutil build
 125   --disable-swresample     disable libswresample build
 126   --disable-swscale        disable libswscale build
 127   --disable-postproc       disable libpostproc build
 128   --disable-avfilter       disable libavfilter build
 129   --enable-avresample      enable libavresample build [no]
 130   --disable-pthreads       disable pthreads [auto]
 131   --disable-w32threads     disable Win32 threads [auto]
 132   --disable-os2threads     disable OS/2 threads [auto]
 133   --enable-x11grab         enable X11 grabbing [no]
 134   --disable-network        disable network support [no]
 135   --disable-dct            disable DCT code
 136   --disable-dwt            disable DWT code
 137   --disable-lsp            disable LSP code
 138   --disable-lzo            disable LZO decoder code
 139   --disable-mdct           disable MDCT code
 140   --disable-rdft           disable RDFT code
 141   --disable-fft            disable FFT code
 142   --enable-dxva2           enable DXVA2 code
 143   --enable-vaapi           enable VAAPI code [autodetect]
 144   --enable-vda             enable VDA code   [autodetect]
 145   --enable-vdpau           enable VDPAU code [autodetect]
 146
 147 Individual component options:
 148   --disable-everything     disable all components listed below
 149   --disable-encoder=NAME   disable encoder NAME
 150   --enable-encoder=NAME    enable encoder NAME
 151   --disable-encoders       disable all encoders
 152   --disable-decoder=NAME   disable decoder NAME
 153   --enable-decoder=NAME    enable decoder NAME
 154   --disable-decoders       disable all decoders
 155   --disable-hwaccel=NAME   disable hwaccel NAME
 156   --enable-hwaccel=NAME    enable hwaccel NAME
 157   --disable-hwaccels       disable all hwaccels
 158   --disable-muxer=NAME     disable muxer NAME
 159   --enable-muxer=NAME      enable muxer NAME
 160   --disable-muxers         disable all muxers
 161   --disable-demuxer=NAME   disable demuxer NAME
 162   --enable-demuxer=NAME    enable demuxer NAME
 163   --disable-demuxers       disable all demuxers
 164   --enable-parser=NAME     enable parser NAME
 165   --disable-parser=NAME    disable parser NAME
 166   --disable-parsers        disable all parsers
 167   --enable-bsf=NAME        enable bitstream filter NAME
 168   --disable-bsf=NAME       disable bitstream filter NAME
 169   --disable-bsfs           disable all bitstream filters
 170   --enable-protocol=NAME   enable protocol NAME
 171   --disable-protocol=NAME  disable protocol NAME
 172   --disable-protocols      disable all protocols
 173   --enable-indev=NAME      enable input device NAME
 174   --disable-indev=NAME     disable input device NAME
 175   --disable-indevs         disable input devices
 176   --enable-outdev=NAME     enable output device NAME
 177   --disable-outdev=NAME    disable output device NAME
 178   --disable-outdevs        disable output devices
 179   --disable-devices        disable all devices
 180   --enable-filter=NAME     enable filter NAME
 181   --disable-filter=NAME    disable filter NAME
 182   --disable-filters        disable all filters
 183
 184 External library support:
 185   --enable-avisynth        enable reading of AVISynth script files [no]
 186   --enable-bzlib           enable bzlib [autodetect]
 187   --enable-fontconfig      enable fontconfig
 188   --enable-frei0r          enable frei0r video filtering
 189   --enable-gnutls          enable gnutls [no]
 190   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 191   --enable-libass          enable libass subtitles rendering [no]
 192   --enable-libbluray       enable BluRay reading using libbluray [no]
 193   --enable-libcaca         enable textual display using libcaca
 194   --enable-libcelt         enable CELT decoding via libcelt [no]
 195   --enable-libcdio         enable audio CD grabbing with libcdio
 196   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 197                            and libraw1394 [no]
 198   --enable-libfaac         enable AAC encoding via libfaac [no]
 199   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 200   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 201   --enable-libfreetype     enable libfreetype [no]
 202   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 203   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 204   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 205   --enable-libmodplug      enable ModPlug via libmodplug [no]
 206   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 207   --enable-libnut          enable NUT (de)muxing via libnut,
 208                            native (de)muxer exists [no]
 209   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 210   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 211   --enable-libopencv       enable video filtering via libopencv [no]
 212   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 213   --enable-libopus         enable Opus decoding via libopus [no]
 214   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 215   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 216   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 217   --enable-libsoxr         enable Include libsoxr resampling [no]
 218   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 219   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 220   --enable-libtheora       enable Theora encoding via libtheora [no]
 221   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 222   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 223   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 224   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 225   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 226   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 227                            native implementation exists [no]
 228   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 229   --enable-libx264         enable H.264 encoding via x264 [no]
 230   --enable-libxavs         enable AVS encoding via xavs [no]
 231   --enable-libxvid         enable Xvid encoding via xvidcore,
 232                            native MPEG-4/Xvid encoder exists [no]
 233   --enable-openal          enable OpenAL 1.1 capture support [no]
 234   --enable-openssl         enable openssl [no]
 235   --enable-zlib            enable zlib [autodetect]
 236
 237 Advanced options (experts only):
 238   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 239   --enable-cross-compile   assume a cross-compiler is used
 240   --sysroot=PATH           root of cross-build tree
 241   --sysinclude=PATH        location of cross-build system headers
 242   --target-os=OS           compiler targets OS [$target_os]
 243   --target-exec=CMD        command to run executables on target
 244   --target-path=DIR        path to view of build directory on target
 245   --toolchain=NAME         set tool defaults according to NAME
 246   --nm=NM                  use nm tool NM [$nm_default]
 247   --ar=AR                  use archive tool AR [$ar_default]
 248   --as=AS                  use assembler AS [$as_default]
 249   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 250   --cc=CC                  use C compiler CC [$cc_default]
 251   --cxx=CXX                use C compiler CXX [$cxx_default]
 252   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 253   --ld=LD                  use linker LD [$ld_default]
 254   --host-cc=HOSTCC         use host C compiler HOSTCC
 255   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 256   --host-ld=HOSTLD         use host linker HOSTLD
 257   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 258   --host-libs=HLIBS        use libs HLIBS when linking for host
 259   --host-os=OS             compiler host OS [$target_os]
 260   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 261   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 262   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 263   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 264   --extra-version=STRING   version string suffix []
 265   --optflags=OPTFLAGS      override optimization-related compiler flags
 266   --build-suffix=SUFFIX    library name suffix []
 267   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 268   --progs-suffix=SUFFIX    program name suffix []
 269   --arch=ARCH              select architecture [$arch]
 270   --cpu=CPU                select the minimum required CPU (affects
 271                            instruction selection, may crash on older CPUs)
 272   --enable-pic             build position-independent code
 273   --enable-sram            allow use of on-chip SRAM
 274   --enable-thumb           compile for Thumb instruction set
 275   --disable-symver         disable symbol versioning
 276   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 277   --disable-safe-bitstream-reader
 278                            disable buffer boundary checking in bitreaders
 279                            (faster, but may crash)
 280   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 281   --enable-lto             use link-time optimization
 282
 283 Optimization options (experts only):
 284   --disable-asm            disable all assembler optimizations
 285   --disable-altivec        disable AltiVec optimizations
 286   --disable-amd3dnow       disable 3DNow! optimizations
 287   --disable-amd3dnowext    disable 3DNow! extended optimizations
 288   --disable-mmx            disable MMX optimizations
 289   --disable-mmxext         disable MMXEXT optimizations
 290   --disable-sse            disable SSE optimizations
 291   --disable-sse2           disable SSE2 optimizations
 292   --disable-sse3           disable SSE3 optimizations
 293   --disable-ssse3          disable SSSE3 optimizations
 294   --disable-sse4           disable SSE4 optimizations
 295   --disable-sse42          disable SSE4.2 optimizations
 296   --disable-avx            disable AVX optimizations
 297   --disable-fma4           disable FMA4 optimizations
 298   --disable-armv5te        disable armv5te optimizations
 299   --disable-armv6          disable armv6 optimizations
 300   --disable-armv6t2        disable armv6t2 optimizations
 301   --disable-vfp            disable VFP optimizations
 302   --disable-neon           disable NEON optimizations
 303   --disable-vis            disable VIS optimizations
 304   --disable-inline-asm     disable use of inline assembler
 305   --disable-yasm           disable use of yasm assembler
 306   --disable-mips32r2       disable MIPS32R2 optimizations
 307   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 308   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 309   --disable-mipsfpu        disable floating point MIPS optimizations
 310   --disable-fast-unaligned consider unaligned accesses slow
 311
 312 Developer options (useful when working on FFmpeg itself):
 313   --enable-coverage        build with test coverage instrumentation
 314   --disable-debug          disable debugging symbols
 315   --enable-debug=LEVEL     set the debug level [$debuglevel]
 316   --disable-optimizations  disable compiler optimizations
 317   --enable-extra-warnings  enable more compiler warnings
 318   --disable-stripping      disable stripping of executables and shared libraries
 319   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 320                            2 causes a slowdown at runtime.
 321   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 322   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 323                            leaks and errors, using the specified valgrind binary.
 324                            Cannot be combined with --target-exec
 325   --enable-ftrapv          Trap arithmetic overflows
 326   --samples=PATH           location of test samples for FATE, if not set use
 327                            \$FATE_SAMPLES at make invocation time.
 328   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 329                            should be used only for debugging purposes)
 330   --enable-random          randomly enable/disable components
 331   --disable-random
 332   --enable-random=LIST     randomly enable/disable specific components or
 333   --disable-random=LIST    component groups. LIST is a comma-separated list
 334                            of NAME[:PROB] entries where NAME is a component
 335                            (group) and PROB the probability associated with
 336                            NAME (default 0.5).
 337   --random-seed=VALUE      seed value for --enable/disable-random
 338
 339 NOTE: Object files are built at the place where configure is launched.
 340 EOF
 341   exit 0
 342 }
 343
 344 quotes='""'
 345
 346 log(){
 347     echo "$@" >> $logfile
 348 }
 349
 350 log_file(){
 351     log BEGIN $1
 352     pr -n -t $1 >> $logfile
 353     log END $1
 354 }
 355
 356 echolog(){
 357     log "$@"
 358     echo "$@"
 359 }
 360
 361 warn(){
 362     log "WARNING: $*"
 363     WARNINGS="${WARNINGS}WARNING: $*\n"
 364 }
 365
 366 die(){
 367     echolog "$@"
 368     cat <<EOF
 369
 370 If you think configure made a mistake, make sure you are using the latest
 371 version from Git.  If the latest version fails, report the problem to the
 372 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 373 EOF
 374     if disabled logging; then
 375         cat <<EOF
 376 Rerun configure with logging enabled (do not use --disable-logging), and
 377 include the log this produces with your report.
 378 EOF
 379     else
 380         cat <<EOF
 381 Include the log file "$logfile" produced by configure as this will help
 382 solving the problem.
 383 EOF
 384     fi
 385     exit 1
 386 }
 387
 388 # Avoid locale weirdness, besides we really just want to translate ASCII.
 389 toupper(){
 390     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 391 }
 392
 393 tolower(){
 394     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 395 }
 396
 397 c_escape(){
 398     echo "$*" | sed 's/["\\]/\\\0/g'
 399 }
 400
 401 sh_quote(){
 402     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 403     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 404     echo "$v"
 405 }
 406
 407 cleanws(){
 408     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 409 }
 410
 411 filter(){
 412     pat=$1
 413     shift
 414     for v; do
 415         eval "case $v in $pat) echo $v ;; esac"
 416     done
 417 }
 418
 419 filter_out(){
 420     pat=$1
 421     shift
 422     for v; do
 423         eval "case $v in $pat) ;; *) echo $v ;; esac"
 424     done
 425 }
 426
 427 map(){
 428     m=$1
 429     shift
 430     for v; do eval $m; done
 431 }
 432
 433 add_suffix(){
 434     suffix=$1
 435     shift
 436     for v; do echo ${v}${suffix}; done
 437 }
 438
 439 set_all(){
 440     value=$1
 441     shift
 442     for var in $*; do
 443         eval $var=$value
 444     done
 445 }
 446
 447 set_weak(){
 448     value=$1
 449     shift
 450     for var; do
 451         eval : \${$var:=$value}
 452     done
 453 }
 454
 455 set_safe(){
 456     var=$1
 457     shift
 458     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 459 }
 460
 461 get_safe(){
 462     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 463 }
 464
 465 pushvar(){
 466     for var in $*; do
 467         eval level=\${${var}_level:=0}
 468         eval ${var}_${level}="\$$var"
 469         eval ${var}_level=$(($level+1))
 470     done
 471 }
 472
 473 popvar(){
 474     for var in $*; do
 475         eval level=\${${var}_level:-0}
 476         test $level = 0 && continue
 477         eval level=$(($level-1))
 478         eval $var="\${${var}_${level}}"
 479         eval ${var}_level=$level
 480         eval unset ${var}_${level}
 481     done
 482 }
 483
 484 enable(){
 485     set_all yes $*
 486 }
 487
 488 disable(){
 489     set_all no $*
 490 }
 491
 492 enable_weak(){
 493     set_weak yes $*
 494 }
 495
 496 disable_weak(){
 497     set_weak no $*
 498 }
 499
 500 enable_safe(){
 501     for var; do
 502         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 503     done
 504 }
 505
 506 disable_safe(){
 507     for var; do
 508         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 509     done
 510 }
 511
 512 do_enable_deep(){
 513     for var; do
 514         enabled $var && continue
 515         eval sel="\$${var}_select"
 516         eval sgs="\$${var}_suggest"
 517         pushvar var sgs
 518         enable_deep $sel
 519         popvar sgs
 520         enable_deep_weak $sgs
 521         popvar var
 522     done
 523 }
 524
 525 enable_deep(){
 526     do_enable_deep $*
 527     enable $*
 528 }
 529
 530 enable_deep_weak(){
 531     do_enable_deep $*
 532     enable_weak $*
 533 }
 534
 535 enabled(){
 536     test "${1#!}" = "$1" && op== || op=!=
 537     eval test "x\$${1#!}" $op "xyes"
 538 }
 539
 540 disabled(){
 541     test "${1#!}" = "$1" && op== || op=!=
 542     eval test "x\$${1#!}" $op "xno"
 543 }
 544
 545 enabled_all(){
 546     for opt; do
 547         enabled $opt || return 1
 548     done
 549 }
 550
 551 disabled_all(){
 552     for opt; do
 553         disabled $opt || return 1
 554     done
 555 }
 556
 557 enabled_any(){
 558     for opt; do
 559         enabled $opt && return 0
 560     done
 561 }
 562
 563 disabled_any(){
 564     for opt; do
 565         disabled $opt && return 0
 566     done
 567     return 1
 568 }
 569
 570 set_default(){
 571     for opt; do
 572         eval : \${$opt:=\$${opt}_default}
 573     done
 574 }
 575
 576 is_in(){
 577     value=$1
 578     shift
 579     for var in $*; do
 580         [ $var = $value ] && return 0
 581     done
 582     return 1
 583 }
 584
 585 do_check_deps(){
 586     for cfg; do
 587         cfg="${cfg#!}"
 588         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 589         disabled ${cfg}_checking && continue
 590         enable ${cfg}_checking
 591         append allopts $cfg
 592
 593         eval dep_all="\$${cfg}_deps"
 594         eval dep_any="\$${cfg}_deps_any"
 595         eval dep_sel="\$${cfg}_select"
 596         eval dep_sgs="\$${cfg}_suggest"
 597         eval dep_ifa="\$${cfg}_if"
 598         eval dep_ifn="\$${cfg}_if_any"
 599
 600         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 601         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 602         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 603
 604         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 605         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 606         enabled_all  $dep_all || disable $cfg
 607         enabled_any  $dep_any || disable $cfg
 608         disabled_any $dep_sel && disable $cfg
 609
 610         if enabled $cfg; then
 611             enable_deep $dep_sel
 612             enable_deep_weak $dep_sgs
 613         fi
 614
 615         disable ${cfg}_checking
 616     done
 617 }
 618
 619 check_deps(){
 620     unset allopts
 621
 622     do_check_deps "$@"
 623
 624     for cfg in $allopts; do
 625         enabled $cfg || continue
 626         eval dep_extralibs="\$${cfg}_extralibs"
 627         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 628     done
 629 }
 630
 631 print_config(){
 632     pfx=$1
 633     files=$2
 634     shift 2
 635     map 'eval echo "$v \${$v:-no}"' "$@" |
 636     awk "BEGIN { split(\"$files\", files) }
 637         {
 638             c = \"$pfx\" toupper(\$1);
 639             v = \$2;
 640             sub(/yes/, 1, v);
 641             sub(/no/,  0, v);
 642             for (f in files) {
 643                 file = files[f];
 644                 if (file ~ /\\.h\$/) {
 645                     printf(\"#define %s %d\\n\", c, v) >>file;
 646                 } else if (file ~ /\\.asm\$/) {
 647                     printf(\"%%define %s %d\\n\", c, v) >>file;
 648                 } else if (file ~ /\\.mak\$/) {
 649                     n = -v ? \"\" : \"!\";
 650                     printf(\"%s%s=yes\\n\", n, c) >>file;
 651                 }
 652             }
 653         }"
 654 }
 655
 656 print_enabled(){
 657     suf=$1
 658     shift
 659     for v; do
 660         enabled $v && printf "%s\n" ${v%$suf};
 661     done
 662 }
 663
 664 append(){
 665     var=$1
 666     shift
 667     eval "$var=\"\$$var $*\""
 668 }
 669
 670 prepend(){
 671     var=$1
 672     shift
 673     eval "$var=\"$* \$$var\""
 674 }
 675
 676 add_cppflags(){
 677     append CPPFLAGS "$@"
 678 }
 679
 680 add_cflags(){
 681     append CFLAGS $($cflags_filter "$@")
 682 }
 683
 684 add_cxxflags(){
 685     append CXXFLAGS $($cflags_filter "$@")
 686 }
 687
 688 add_asflags(){
 689     append ASFLAGS $($asflags_filter "$@")
 690 }
 691
 692 add_ldflags(){
 693     append LDFLAGS $($ldflags_filter "$@")
 694 }
 695
 696 add_extralibs(){
 697     prepend extralibs $($ldflags_filter "$@")
 698 }
 699
 700 add_host_cflags(){
 701     append host_cflags $($host_cflags_filter "$@")
 702 }
 703
 704 add_host_ldflags(){
 705     append host_ldflags $($host_ldflags_filter "$@")
 706 }
 707
 708 add_compat(){
 709     append compat_objs $1
 710     shift
 711     map 'add_cppflags -D$v' "$@"
 712 }
 713
 714 check_cmd(){
 715     log "$@"
 716     "$@" >> $logfile 2>&1
 717 }
 718
 719 cc_o(){
 720     eval printf '%s\\n' $CC_O
 721 }
 722
 723 cc_e(){
 724     eval printf '%s\\n' $CC_E
 725 }
 726
 727 check_cc(){
 728     log check_cc "$@"
 729     cat > $TMPC
 730     log_file $TMPC
 731     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 732 }
 733
 734 check_cxx(){
 735     log check_cxx "$@"
 736     cat > $TMPCPP
 737     log_file $TMPCPP
 738     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 739 }
 740
 741 check_cpp(){
 742     log check_cpp "$@"
 743     cat > $TMPC
 744     log_file $TMPC
 745     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 746 }
 747
 748 as_o(){
 749     eval printf '%s\\n' $AS_O
 750 }
 751
 752 check_as(){
 753     log check_as "$@"
 754     cat > $TMPS
 755     log_file $TMPS
 756     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 757 }
 758
 759 check_inline_asm(){
 760     log check_inline_asm "$@"
 761     name="$1"
 762     code="$2"
 763     shift 2
 764     disable $name
 765     check_cc "$@" <<EOF && enable $name
 766 void foo(void){ __asm__ volatile($code); }
 767 EOF
 768 }
 769
 770 check_insn(){
 771     log check_insn "$@"
 772     check_inline_asm ${1}_inline "\"$2\""
 773     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 774 }
 775
 776 check_yasm(){
 777     log check_yasm "$@"
 778     echo "$1" > $TMPS
 779     log_file $TMPS
 780     shift 1
 781     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 782 }
 783
 784 ld_o(){
 785     eval printf '%s\\n' $LD_O
 786 }
 787
 788 check_ld(){
 789     log check_ld "$@"
 790     type=$1
 791     shift 1
 792     flags=$(filter_out '-l*|*.so' $@)
 793     libs=$(filter '-l*|*.so' $@)
 794     check_$type $($cflags_filter $flags) || return
 795     flags=$($ldflags_filter $flags)
 796     libs=$($ldflags_filter $libs)
 797     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 798 }
 799
 800 check_code(){
 801     log check_code "$@"
 802     check=$1
 803     headers=$2
 804     code=$3
 805     shift 3
 806     {
 807         for hdr in $headers; do
 808             echo "#include <$hdr>"
 809         done
 810         echo "int main(void) { $code; return 0; }"
 811     } | check_$check "$@"
 812 }
 813
 814 check_cppflags(){
 815     log check_cppflags "$@"
 816     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 817 int x;
 818 EOF
 819 }
 820
 821 check_cflags(){
 822     log check_cflags "$@"
 823     set -- $($cflags_filter "$@")
 824     check_cc "$@" <<EOF && append CFLAGS "$@"
 825 int x;
 826 EOF
 827 }
 828
 829 check_cxxflags(){
 830     log check_cxxflags "$@"
 831     set -- $($cflags_filter "$@")
 832     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 833 int x;
 834 EOF
 835 }
 836
 837 test_ldflags(){
 838     log test_ldflags "$@"
 839     check_ld "cc" "$@" <<EOF
 840 int main(void){ return 0; }
 841 EOF
 842 }
 843
 844 check_ldflags(){
 845     log check_ldflags "$@"
 846     test_ldflags "$@" && add_ldflags "$@"
 847 }
 848
 849 check_header(){
 850     log check_header "$@"
 851     header=$1
 852     shift
 853     disable_safe $header
 854     check_cpp "$@" <<EOF && enable_safe $header
 855 #include <$header>
 856 int x;
 857 EOF
 858 }
 859
 860 check_func(){
 861     log check_func "$@"
 862     func=$1
 863     shift
 864     disable $func
 865     check_ld "cc" "$@" <<EOF && enable $func
 866 extern int $func();
 867 int main(void){ $func(); }
 868 EOF
 869 }
 870
 871 check_mathfunc(){
 872     log check_mathfunc "$@"
 873     func=$1
 874     narg=$2
 875     shift 2
 876     test $narg = 2 && args="f, g" || args="f"
 877     disable $func
 878     check_ld "cc" "$@" <<EOF && enable $func
 879 #include <math.h>
 880 float foo(float f, float g) { return $func($args); }
 881 int main(void){ return (int) foo; }
 882 EOF
 883 }
 884
 885 check_func_headers(){
 886     log check_func_headers "$@"
 887     headers=$1
 888     funcs=$2
 889     shift 2
 890     {
 891         for hdr in $headers; do
 892             echo "#include <$hdr>"
 893         done
 894         for func in $funcs; do
 895             echo "long check_$func(void) { return (long) $func; }"
 896         done
 897         echo "int main(void) { return 0; }"
 898     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 899 }
 900
 901 check_class_headers_cpp(){
 902     log check_class_headers_cpp "$@"
 903     headers=$1
 904     classes=$2
 905     shift 2
 906     {
 907         for hdr in $headers; do
 908             echo "#include <$hdr>"
 909         done
 910         echo "int main(void) { "
 911         i=1
 912         for class in $classes; do
 913             echo "$class obj$i;"
 914             i=$(expr $i + 1)
 915         done
 916         echo "return 0; }"
 917     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 918 }
 919
 920 check_cpp_condition(){
 921     log check_cpp_condition "$@"
 922     header=$1
 923     condition=$2
 924     shift 2
 925     check_cpp "$@" <<EOF
 926 #include <$header>
 927 #if !($condition)
 928 #error "unsatisfied condition: $condition"
 929 #endif
 930 EOF
 931 }
 932
 933 check_lib(){
 934     log check_lib "$@"
 935     header="$1"
 936     func="$2"
 937     shift 2
 938     check_header $header && check_func $func "$@" && add_extralibs "$@"
 939 }
 940
 941 check_lib2(){
 942     log check_lib2 "$@"
 943     headers="$1"
 944     funcs="$2"
 945     shift 2
 946     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 947 }
 948
 949 check_lib_cpp(){
 950     log check_lib_cpp "$@"
 951     headers="$1"
 952     classes="$2"
 953     shift 2
 954     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 955 }
 956
 957 check_pkg_config(){
 958     log check_pkg_config "$@"
 959     pkg="$1"
 960     headers="$2"
 961     funcs="$3"
 962     shift 3
 963     $pkg_config --exists $pkg 2>/dev/null || return
 964     pkg_cflags=$($pkg_config --cflags $pkg)
 965     pkg_libs=$($pkg_config --libs $pkg)
 966     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 967         set_safe ${pkg}_cflags $pkg_cflags   &&
 968         set_safe ${pkg}_libs   $pkg_libs
 969 }
 970
 971 check_exec(){
 972     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 973 }
 974
 975 check_exec_crash(){
 976     code=$(cat)
 977
 978     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 979     # are safe but may not be available everywhere.  Thus we use
 980     # raise(SIGTERM) instead.  The check is run in a subshell so we
 981     # can redirect the "Terminated" message from the shell.  SIGBUS
 982     # is not defined by standard C so it is used conditionally.
 983
 984     (check_exec "$@") >> $logfile 2>&1 <<EOF
 985 #include <signal.h>
 986 static void sighandler(int sig){
 987     raise(SIGTERM);
 988 }
 989 int func(void){
 990     $code
 991 }
 992 int (*func_ptr)(void) = func;
 993 int main(void){
 994     signal(SIGILL, sighandler);
 995     signal(SIGFPE, sighandler);
 996     signal(SIGSEGV, sighandler);
 997 #ifdef SIGBUS
 998     signal(SIGBUS, sighandler);
 999 #endif
1000     return func_ptr();
1001 }
1002 EOF
1003 }
1004
1005 check_type(){
1006     log check_type "$@"
1007     headers=$1
1008     type=$2
1009     shift 2
1010     disable_safe "$type"
1011     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1012 }
1013
1014 check_struct(){
1015     log check_type "$@"
1016     headers=$1
1017     struct=$2
1018     member=$3
1019     shift 3
1020     disable_safe "${struct}_${member}"
1021     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1022         enable_safe "${struct}_${member}"
1023 }
1024
1025 require(){
1026     name="$1"
1027     header="$2"
1028     func="$3"
1029     shift 3
1030     check_lib $header $func "$@" || die "ERROR: $name not found"
1031 }
1032
1033 require2(){
1034     name="$1"
1035     headers="$2"
1036     func="$3"
1037     shift 3
1038     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1039 }
1040
1041 require_cpp(){
1042     name="$1"
1043     headers="$2"
1044     classes="$3"
1045     shift 3
1046     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1047 }
1048
1049 require_pkg_config(){
1050     pkg="$1"
1051     check_pkg_config "$@" || die "ERROR: $pkg not found"
1052     add_cflags    $(get_safe ${pkg}_cflags)
1053     add_extralibs $(get_safe ${pkg}_libs)
1054 }
1055
1056 hostcc_o(){
1057     eval printf '%s\\n' $HOSTCC_O
1058 }
1059
1060 check_host_cc(){
1061     log check_host_cc "$@"
1062     cat > $TMPC
1063     log_file $TMPC
1064     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1065 }
1066
1067 check_host_cflags(){
1068     log check_host_cflags "$@"
1069     set -- $($host_cflags_filter "$@")
1070     check_host_cc "$@" <<EOF && append host_cflags "$@"
1071 int x;
1072 EOF
1073 }
1074
1075 apply(){
1076     file=$1
1077     shift
1078     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1079 }
1080
1081 cp_if_changed(){
1082     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1083     mkdir -p "$(dirname $2)"
1084     $cp_f "$1" "$2"
1085 }
1086
1087 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1088 # system-dependent things.
1089
1090 COMPONENT_LIST="
1091     bsfs
1092     decoders
1093     demuxers
1094     encoders
1095     filters
1096     hwaccels
1097     indevs
1098     muxers
1099     outdevs
1100     parsers
1101     protocols
1102 "
1103
1104 DOCUMENT_LIST="
1105     doc
1106     htmlpages
1107     manpages
1108     podpages
1109     txtpages
1110 "
1111
1112 LIBRARY_LIST="
1113     avcodec
1114     avdevice
1115     avfilter
1116     avformat
1117     avresample
1118     avutil
1119     postproc
1120     swresample
1121     swscale
1122 "
1123
1124 PROGRAM_LIST="
1125     ffplay
1126     ffprobe
1127     ffserver
1128     ffmpeg
1129 "
1130
1131 CONFIG_LIST="
1132     $COMPONENT_LIST
1133     $DOCUMENT_LIST
1134     $LIBRARY_LIST
1135     $PROGRAM_LIST
1136     avisynth
1137     bzlib
1138     crystalhd
1139     dct
1140     dwt
1141     dxva2
1142     fast_unaligned
1143     fft
1144     fontconfig
1145     frei0r
1146     ftrapv
1147     gnutls
1148     gpl
1149     gray
1150     hardcoded_tables
1151     incompatible_fork_abi
1152     libaacplus
1153     libass
1154     libbluray
1155     libcaca
1156     libcdio
1157     libcelt
1158     libdc1394
1159     libfaac
1160     libfdk_aac
1161     libflite
1162     libfreetype
1163     libgsm
1164     libiec61883
1165     libilbc
1166     libmodplug
1167     libmp3lame
1168     libnut
1169     libopencore_amrnb
1170     libopencore_amrwb
1171     libopencv
1172     libopenjpeg
1173     libopus
1174     libpulse
1175     librtmp
1176     libschroedinger
1177     libsoxr
1178     libspeex
1179     libstagefright_h264
1180     libtheora
1181     libtwolame
1182     libutvideo
1183     libv4l2
1184     libvo_aacenc
1185     libvo_amrwbenc
1186     libvorbis
1187     libvpx
1188     libx264
1189     libxavs
1190     libxvid
1191     lsp
1192     lzo
1193     mdct
1194     memalign_hack
1195     memory_poisoning
1196     network
1197     nonfree
1198     openal
1199     openssl
1200     pic
1201     rdft
1202     runtime_cpudetect
1203     safe_bitstream_reader
1204     shared
1205     small
1206     sram
1207     static
1208     swscale_alpha
1209     thumb
1210     vaapi
1211     vda
1212     vdpau
1213     version3
1214     xmm_clobber_test
1215     x11grab
1216     zlib
1217 "
1218
1219 THREADS_LIST='
1220     pthreads
1221     w32threads
1222     os2threads
1223 '
1224
1225 ARCH_LIST='
1226     aarch64
1227     alpha
1228     arm
1229     avr32
1230     avr32_ap
1231     avr32_uc
1232     bfin
1233     ia64
1234     m68k
1235     mips
1236     mips64
1237     parisc
1238     ppc
1239     ppc64
1240     s390
1241     sh4
1242     sparc
1243     sparc64
1244     tilegx
1245     tilepro
1246     tomi
1247     x86
1248     x86_32
1249     x86_64
1250 '
1251
1252 ARCH_EXT_LIST_ARM='
1253     armv5te
1254     armv6
1255     armv6t2
1256     neon
1257     vfp
1258     vfpv3
1259 '
1260
1261 ARCH_EXT_LIST_X86='
1262     amd3dnow
1263     amd3dnowext
1264     avx
1265     fma4
1266     mmx
1267     mmxext
1268     sse
1269     sse2
1270     sse3
1271     sse4
1272     sse42
1273     ssse3
1274 '
1275
1276 ARCH_EXT_LIST="
1277     $ARCH_EXT_LIST_ARM
1278     $ARCH_EXT_LIST_X86
1279     altivec
1280     ppc4xx
1281     vis
1282     mipsfpu
1283     mips32r2
1284     mipsdspr1
1285     mipsdspr2
1286 "
1287
1288 HAVE_LIST_CMDLINE='
1289     inline_asm
1290     symver
1291     yasm
1292 '
1293
1294 HAVE_LIST_PUB='
1295     bigendian
1296     fast_unaligned
1297     incompatible_fork_abi
1298 '
1299
1300 MATH_FUNCS="
1301     atanf
1302     atan2f
1303     cbrt
1304     cbrtf
1305     cosf
1306     exp2
1307     exp2f
1308     expf
1309     isinf
1310     isnan
1311     ldexpf
1312     llrint
1313     llrintf
1314     log2
1315     log2f
1316     log10f
1317     lrint
1318     lrintf
1319     powf
1320     rint
1321     round
1322     roundf
1323     sinf
1324     trunc
1325     truncf
1326 "
1327
1328 HAVE_LIST="
1329     $ARCH_EXT_LIST
1330     $(add_suffix _external $ARCH_EXT_LIST)
1331     $(add_suffix _inline   $ARCH_EXT_LIST)
1332     $HAVE_LIST_CMDLINE
1333     $HAVE_LIST_PUB
1334     $THREADS_LIST
1335     $MATH_FUNCS
1336     access
1337     aligned_malloc
1338     aligned_stack
1339     alsa_asoundlib_h
1340     altivec_h
1341     arpa_inet_h
1342     asm_mod_q
1343     asm_mod_y
1344     asm_types_h
1345     attribute_may_alias
1346     attribute_packed
1347     cdio_paranoia_h
1348     cdio_paranoia_paranoia_h
1349     clock_gettime
1350     closesocket
1351     cmov
1352     CommandLineToArgvW
1353     cpunop
1354     CryptGenRandom
1355     dcbzl
1356     dev_bktr_ioctl_bt848_h
1357     dev_bktr_ioctl_meteor_h
1358     dev_ic_bt8xx_h
1359     dev_video_bktr_ioctl_bt848_h
1360     dev_video_meteor_ioctl_meteor_h
1361     direct_h
1362     dlfcn_h
1363     dlopen
1364     dos_paths
1365     dxva_h
1366     ebp_available
1367     ebx_available
1368     fast_64bit
1369     fast_clz
1370     fast_cmov
1371     fcntl
1372     fork
1373     getaddrinfo
1374     gethrtime
1375     getopt
1376     GetProcessAffinityMask
1377     GetProcessMemoryInfo
1378     GetProcessTimes
1379     GetSystemTimeAsFileTime
1380     getrusage
1381     getservbyport
1382     gettimeofday
1383     glob
1384     gnu_as
1385     gsm_h
1386     ibm_asm
1387     inet_aton
1388     io_h
1389     isatty
1390     jack_port_get_latency_range
1391     kbhit
1392     ldbrx
1393     libdc1394_1
1394     libdc1394_2
1395     local_aligned_16
1396     local_aligned_8
1397     localtime_r
1398     loongson
1399     lzo1x_999_compress
1400     machine_ioctl_bt848_h
1401     machine_ioctl_meteor_h
1402     makeinfo
1403     malloc_h
1404     MapViewOfFile
1405     memalign
1406     mkstemp
1407     mm_empty
1408     mmap
1409     mprotect
1410     msvcrt
1411     nanosleep
1412     openjpeg_1_5_openjpeg_h
1413     PeekNamedPipe
1414     perl
1415     pod2man
1416     poll_h
1417     posix_memalign
1418     pthread_cancel
1419     rdtsc
1420     rsync_contimeout
1421     sched_getaffinity
1422     sdl
1423     sdl_video_size
1424     SetConsoleTextAttribute
1425     setmode
1426     setrlimit
1427     Sleep
1428     sndio_h
1429     socklen_t
1430     soundcard_h
1431     strerror_r
1432     struct_addrinfo
1433     struct_group_source_req
1434     struct_ip_mreq_source
1435     struct_ipv6_mreq
1436     struct_pollfd
1437     struct_rusage_ru_maxrss
1438     struct_sctp_event_subscribe
1439     struct_sockaddr_in6
1440     struct_sockaddr_sa_len
1441     struct_sockaddr_storage
1442     struct_v4l2_frmivalenum_discrete
1443     symver_asm_label
1444     symver_gnu_asm
1445     sysconf
1446     sysctl
1447     sys_mman_h
1448     sys_param_h
1449     sys_resource_h
1450     sys_select_h
1451     sys_soundcard_h
1452     sys_time_h
1453     sys_videoio_h
1454     termios_h
1455     texi2html
1456     threads
1457     unistd_h
1458     usleep
1459     vfp_args
1460     VirtualAlloc
1461     windows_h
1462     winsock2_h
1463     xform_asm
1464     xmm_clobbers
1465 "
1466
1467 # options emitted with CONFIG_ prefix but not available on the command line
1468 CONFIG_EXTRA="
1469     aandcttables
1470     ac3dsp
1471     error_resilience
1472     gcrypt
1473     golomb
1474     gplv3
1475     h264chroma
1476     h264dsp
1477     h264pred
1478     h264qpel
1479     huffman
1480     lgplv3
1481     lpc
1482     mpegaudio
1483     mpegaudiodsp
1484     mpegvideo
1485     mpegvideoenc
1486     nettle
1487     rangecoder
1488     rtpdec
1489     rtpenc_chain
1490     sinewin
1491     videodsp
1492     vp3dsp
1493 "
1494
1495 CMDLINE_SELECT="
1496     $ARCH_EXT_LIST
1497     $CONFIG_LIST
1498     $HAVE_LIST_CMDLINE
1499     $THREADS_LIST
1500     asm
1501     coverage
1502     cross_compile
1503     debug
1504     extra_warnings
1505     logging
1506     lto
1507     optimizations
1508     stripping
1509 "
1510
1511 PATHS_LIST='
1512     bindir
1513     datadir
1514     incdir
1515     libdir
1516     mandir
1517     prefix
1518     shlibdir
1519 '
1520
1521 CMDLINE_SET="
1522     $PATHS_LIST
1523     ar
1524     arch
1525     as
1526     assert_level
1527     build_suffix
1528     cc
1529     cpu
1530     cross_prefix
1531     cxx
1532     dep_cc
1533     extra_version
1534     host_cc
1535     host_cflags
1536     host_ld
1537     host_ldflags
1538     host_libs
1539     host_os
1540     install
1541     ld
1542     logfile
1543     malloc_prefix
1544     nm
1545     optflags
1546     pkg_config
1547     progs_suffix
1548     random_seed
1549     samples
1550     strip
1551     sysinclude
1552     sysroot
1553     target_exec
1554     target_os
1555     target_path
1556     toolchain
1557     valgrind
1558     yasmexe
1559 "
1560
1561 CMDLINE_APPEND="
1562     extra_cflags
1563     extra_cxxflags
1564 "
1565
1566 # code dependency declarations
1567
1568 # architecture extensions
1569
1570 armv5te_deps="arm"
1571 armv6_deps="arm"
1572 armv6t2_deps="arm"
1573 neon_deps="arm"
1574 vfp_deps="arm"
1575 vfpv3_deps="vfp"
1576
1577 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1578
1579 mipsfpu_deps="mips"
1580 mips32r2_deps="mips"
1581 mipsdspr1_deps="mips"
1582 mipsdspr2_deps="mips"
1583
1584 altivec_deps="ppc"
1585 ppc4xx_deps="ppc"
1586
1587 vis_deps="sparc"
1588
1589 x86_64_suggest="cmov fast_cmov"
1590
1591 amd3dnow_deps="mmx"
1592 amd3dnowext_deps="amd3dnow"
1593 mmx_deps="x86"
1594 mmxext_deps="mmx"
1595 sse_deps="mmxext"
1596 sse2_deps="sse"
1597 sse3_deps="sse2"
1598 ssse3_deps="sse3"
1599 sse4_deps="ssse3"
1600 sse42_deps="sse4"
1601 avx_deps="sse42"
1602 fma4_deps="avx"
1603
1604 mmx_external_deps="yasm"
1605 mmx_inline_deps="inline_asm"
1606 mmx_suggest="mmx_external mmx_inline"
1607
1608 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1609     eval dep=\$${ext}_deps
1610     eval ${ext}_external_deps='"${dep}_external"'
1611     eval ${ext}_inline_deps='"${dep}_inline"'
1612     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1613 done
1614
1615 aligned_stack_if_any="ppc x86"
1616 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1617 fast_clz_if_any="alpha avr32 mips ppc x86"
1618 fast_unaligned_if_any="ppc x86"
1619
1620 inline_asm_deps="!tms470"
1621 need_memalign="altivec neon sse"
1622
1623 symver_if_any="symver_asm_label symver_gnu_asm"
1624
1625 log2_deps="!msvcrt"
1626
1627 # subsystems
1628 dct_select="rdft"
1629 mdct_select="fft"
1630 rdft_select="fft"
1631 mpegaudio_select="mpegaudiodsp"
1632 mpegaudiodsp_select="dct"
1633 mpegvideo_select="videodsp"
1634 mpegvideoenc_select="mpegvideo"
1635
1636 # decoders / encoders
1637 aac_decoder_select="mdct sinewin"
1638 aac_encoder_select="mdct sinewin"
1639 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1640 ac3_decoder_select="mdct ac3dsp ac3_parser"
1641 ac3_encoder_select="mdct ac3dsp"
1642 ac3_fixed_encoder_select="mdct ac3dsp"
1643 alac_encoder_select="lpc"
1644 amrnb_decoder_select="lsp"
1645 amrwb_decoder_select="lsp"
1646 amv_encoder_select="aandcttables"
1647 atrac1_decoder_select="mdct sinewin"
1648 atrac3_decoder_select="mdct"
1649 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1650 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1651 cavs_decoder_select="golomb mpegvideo"
1652 comfortnoise_encoder_select="lpc"
1653 cook_decoder_select="mdct sinewin"
1654 cscd_decoder_select="lzo"
1655 cscd_decoder_suggest="zlib"
1656 dca_decoder_select="mdct"
1657 dirac_decoder_select="dwt golomb videodsp"
1658 dnxhd_encoder_select="aandcttables mpegvideoenc"
1659 dxa_decoder_select="zlib"
1660 eac3_decoder_select="ac3_decoder"
1661 eac3_encoder_select="ac3_encoder"
1662 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1663 eatgq_decoder_select="aandcttables"
1664 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1665 exr_decoder_select="zlib"
1666 ffv1_decoder_select="golomb rangecoder"
1667 ffv1_encoder_select="rangecoder"
1668 ffvhuff_encoder_select="huffman"
1669 flac_decoder_select="golomb"
1670 flac_encoder_select="golomb lpc"
1671 flashsv_decoder_select="zlib"
1672 flashsv_encoder_select="zlib"
1673 flashsv2_encoder_select="zlib"
1674 flashsv2_decoder_select="zlib"
1675 flv_decoder_select="h263_decoder"
1676 flv_encoder_select="h263_encoder"
1677 fraps_decoder_select="huffman"
1678 h261_decoder_select="error_resilience mpegvideo"
1679 h261_encoder_select="aandcttables mpegvideoenc"
1680 h263_decoder_select="error_resilience h263_parser mpegvideo"
1681 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1682 h263i_decoder_select="h263_decoder"
1683 h263p_encoder_select="h263_encoder"
1684 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1685 huffyuv_encoder_select="huffman"
1686 iac_decoder_select="fft mdct sinewin"
1687 imc_decoder_select="fft mdct sinewin"
1688 jpegls_decoder_select="golomb"
1689 jpegls_encoder_select="golomb"
1690 ljpeg_encoder_select="aandcttables mpegvideoenc"
1691 loco_decoder_select="golomb"
1692 mdec_decoder_select="error_resilience mpegvideo"
1693 mjpeg_encoder_select="aandcttables mpegvideoenc"
1694 mlp_decoder_select="mlp_parser"
1695 mp1_decoder_select="mpegaudio"
1696 mp1float_decoder_select="mpegaudio"
1697 mp2_decoder_select="mpegaudio"
1698 mp2float_decoder_select="mpegaudio"
1699 mp3_decoder_select="mpegaudio"
1700 mp3adu_decoder_select="mpegaudio"
1701 mp3adufloat_decoder_select="mpegaudio"
1702 mp3float_decoder_select="mpegaudio"
1703 mp3on4_decoder_select="mpegaudio"
1704 mp3on4float_decoder_select="mpegaudio"
1705 mpc7_decoder_select="mpegaudiodsp"
1706 mpc8_decoder_select="mpegaudiodsp"
1707 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1708 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1709 mpeg1video_decoder_select="error_resilience mpegvideo"
1710 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1711 mpeg2video_decoder_select="error_resilience mpegvideo"
1712 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1713 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1714 mpeg4_encoder_select="h263_encoder"
1715 msmpeg4v1_decoder_select="h263_decoder"
1716 msmpeg4v1_encoder_select="h263_encoder"
1717 msmpeg4v2_decoder_select="h263_decoder"
1718 msmpeg4v2_encoder_select="h263_encoder"
1719 msmpeg4v3_decoder_select="h263_decoder"
1720 msmpeg4v3_encoder_select="h263_encoder"
1721 mss2_decoder_select="vc1_decoder"
1722 nellymoser_decoder_select="mdct sinewin"
1723 nellymoser_encoder_select="mdct sinewin"
1724 nuv_decoder_select="lzo"
1725 png_decoder_select="zlib"
1726 png_encoder_select="zlib"
1727 qcelp_decoder_select="lsp"
1728 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1729 ra_144_encoder_select="lpc"
1730 ralf_decoder_select="golomb"
1731 rv10_decoder_select="h263_decoder"
1732 rv10_encoder_select="h263_encoder"
1733 rv20_decoder_select="h263_decoder"
1734 rv20_encoder_select="h263_encoder"
1735 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1736 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1737 shorten_decoder_select="golomb"
1738 sipr_decoder_select="lsp"
1739 snow_decoder_select="dwt rangecoder"
1740 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1741 sonic_decoder_select="golomb"
1742 sonic_encoder_select="golomb"
1743 sonic_ls_encoder_select="golomb"
1744 svq1_decoder_select="error_resilience mpegvideo"
1745 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1746 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1747 svq3_decoder_suggest="zlib"
1748 theora_decoder_select="vp3_decoder"
1749 tiff_decoder_suggest="zlib"
1750 tiff_encoder_suggest="zlib"
1751 truehd_decoder_select="mlp_parser"
1752 tscc_decoder_select="zlib"
1753 twinvq_decoder_select="mdct lsp sinewin"
1754 utvideo_encoder_select="huffman"
1755 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1756 vc1image_decoder_select="vc1_decoder"
1757 vorbis_decoder_select="mdct"
1758 vorbis_encoder_select="mdct"
1759 vp3_decoder_select="vp3dsp videodsp"
1760 vp5_decoder_select="vp3dsp videodsp"
1761 vp6_decoder_select="huffman vp3dsp videodsp"
1762 vp6a_decoder_select="vp6_decoder"
1763 vp6f_decoder_select="vp6_decoder"
1764 vp8_decoder_select="h264pred videodsp"
1765 wmapro_decoder_select="mdct sinewin"
1766 wmav1_decoder_select="mdct sinewin"
1767 wmav1_encoder_select="mdct sinewin"
1768 wmav2_decoder_select="mdct sinewin"
1769 wmav2_encoder_select="mdct sinewin"
1770 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1771 wmv1_decoder_select="h263_decoder"
1772 wmv1_encoder_select="h263_encoder"
1773 wmv2_decoder_select="h263_decoder"
1774 wmv2_encoder_select="h263_encoder"
1775 wmv3_decoder_select="vc1_decoder"
1776 wmv3image_decoder_select="wmv3_decoder"
1777 zerocodec_decoder_select="zlib"
1778 zlib_decoder_select="zlib"
1779 zlib_encoder_select="zlib"
1780 zmbv_decoder_select="zlib"
1781 zmbv_encoder_select="zlib"
1782
1783 # hardware accelerators
1784 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1785 vaapi_deps="va_va_h"
1786 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1787 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1788
1789 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1790 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1791 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1792 h264_dxva2_hwaccel_deps="dxva2api_h"
1793 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1794 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1795 h264_vda_decoder_select="vda h264_parser h264_decoder"
1796 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1797 h264_vda_hwaccel_select="vda h264_decoder"
1798 h264_vdpau_decoder_select="vdpau h264_decoder"
1799 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1800 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1801 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1802 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1803 mpeg2_crystalhd_decoder_select="crystalhd"
1804 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1805 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1806 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1807 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1808 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1809 mpeg4_crystalhd_decoder_select="crystalhd"
1810 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1811 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1812 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1813 msmpeg4_crystalhd_decoder_select="crystalhd"
1814 vc1_crystalhd_decoder_select="crystalhd"
1815 vc1_dxva2_hwaccel_deps="dxva2api_h"
1816 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1817 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1818 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1819 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1820 wmv3_crystalhd_decoder_select="crystalhd"
1821 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1822 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1823 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1824 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1825
1826 # parsers
1827 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1828 mpeg4video_parser_select="error_resilience mpegvideo"
1829 mpegvideo_parser_select="error_resilience mpegvideo"
1830 vc1_parser_select="error_resilience mpegvideo"
1831
1832 # external libraries
1833 libaacplus_encoder_deps="libaacplus"
1834 libcelt_decoder_deps="libcelt"
1835 libfaac_encoder_deps="libfaac"
1836 libfdk_aac_encoder_deps="libfdk_aac"
1837 libgsm_decoder_deps="libgsm"
1838 libgsm_encoder_deps="libgsm"
1839 libgsm_ms_decoder_deps="libgsm"
1840 libgsm_ms_encoder_deps="libgsm"
1841 libilbc_decoder_deps="libilbc"
1842 libilbc_encoder_deps="libilbc"
1843 libmodplug_demuxer_deps="libmodplug"
1844 libmp3lame_encoder_deps="libmp3lame"
1845 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1846 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1847 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1848 libopenjpeg_decoder_deps="libopenjpeg"
1849 libopenjpeg_encoder_deps="libopenjpeg"
1850 libopus_decoder_deps="libopus"
1851 libopus_encoder_deps="libopus"
1852 libschroedinger_decoder_deps="libschroedinger"
1853 libschroedinger_encoder_deps="libschroedinger"
1854 libspeex_decoder_deps="libspeex"
1855 libspeex_encoder_deps="libspeex"
1856 libstagefright_h264_decoder_deps="libstagefright_h264"
1857 libtheora_encoder_deps="libtheora"
1858 libtwolame_encoder_deps="libtwolame"
1859 libvo_aacenc_encoder_deps="libvo_aacenc"
1860 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1861 libvorbis_decoder_deps="libvorbis"
1862 libvorbis_encoder_deps="libvorbis"
1863 libvpx_vp8_decoder_deps="libvpx"
1864 libvpx_vp8_encoder_deps="libvpx"
1865 libvpx_vp9_decoder_deps="libvpx"
1866 libvpx_vp9_encoder_deps="libvpx"
1867 libx264_encoder_deps="libx264"
1868 libx264rgb_encoder_deps="libx264"
1869 libxavs_encoder_deps="libxavs"
1870 libxvid_encoder_deps="libxvid"
1871 libutvideo_decoder_deps="libutvideo"
1872 libutvideo_encoder_deps="libutvideo"
1873
1874 # demuxers / muxers
1875 ac3_demuxer_select="ac3_parser"
1876 asf_stream_muxer_select="asf_muxer"
1877 avisynth_demuxer_deps="avisynth"
1878 dirac_demuxer_select="dirac_parser"
1879 dts_demuxer_select="dca_parser"
1880 dtshd_demuxer_select="dca_parser"
1881 eac3_demuxer_select="ac3_parser"
1882 f4v_muxer_select="mov_muxer"
1883 flac_demuxer_select="flac_parser"
1884 ipod_muxer_select="mov_muxer"
1885 ismv_muxer_select="mov_muxer"
1886 libnut_demuxer_deps="libnut"
1887 libnut_muxer_deps="libnut"
1888 matroska_audio_muxer_select="matroska_muxer"
1889 matroska_demuxer_suggest="bzlib lzo zlib"
1890 mov_demuxer_suggest="zlib"
1891 mov_muxer_select="rtpenc_chain"
1892 mp3_demuxer_select="mpegaudio_parser"
1893 mp4_muxer_select="mov_muxer"
1894 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1895 mpegtsraw_demuxer_select="mpegts_demuxer"
1896 mxf_d10_muxer_select="mxf_muxer"
1897 ogg_demuxer_select="golomb"
1898 psp_muxer_select="mov_muxer"
1899 rtp_demuxer_select="sdp_demuxer"
1900 rtp_muxer_select="mpegvideo"
1901 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1902 rtsp_demuxer_select="http_protocol rtpdec"
1903 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1904 sap_demuxer_select="sdp_demuxer"
1905 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1906 sdp_demuxer_select="rtpdec"
1907 smoothstreaming_muxer_select="ismv_muxer"
1908 spdif_muxer_select="aac_parser"
1909 tak_demuxer_select="tak_parser"
1910 tg2_muxer_select="mov_muxer"
1911 tgp_muxer_select="mov_muxer"
1912 vobsub_demuxer_select="mpegps_demuxer"
1913 w64_demuxer_deps="wav_demuxer"
1914 w64_muxer_deps="wav_muxer"
1915
1916 # indevs / outdevs
1917 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1918 alsa_outdev_deps="alsa_asoundlib_h"
1919 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1920 caca_outdev_deps="libcaca"
1921 dshow_indev_deps="IBaseFilter"
1922 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1923 dv1394_indev_deps="dv1394 dv_demuxer"
1924 fbdev_indev_deps="linux_fb_h"
1925 iec61883_indev_deps="libiec61883"
1926 jack_indev_deps="jack_jack_h sem_timedwait"
1927 lavfi_indev_deps="avfilter"
1928 libcdio_indev_deps="libcdio"
1929 libdc1394_indev_deps="libdc1394"
1930 libv4l2_indev_deps="libv4l2"
1931 openal_indev_deps="openal"
1932 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1933 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1934 pulse_indev_deps="libpulse"
1935 sdl_outdev_deps="sdl"
1936 sndio_indev_deps="sndio_h"
1937 sndio_outdev_deps="sndio_h"
1938 v4l_indev_deps="linux_videodev_h"
1939 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1940 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1941 vfwcap_indev_extralibs="-lavicap32"
1942 x11grab_indev_deps="x11grab"
1943
1944 # protocols
1945 bluray_protocol_deps="libbluray"
1946 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1947 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1948 ffrtmpcrypt_protocol_select="tcp_protocol"
1949 ffrtmphttp_protocol_deps="!librtmp_protocol"
1950 ffrtmphttp_protocol_select="http_protocol"
1951 gopher_protocol_select="network"
1952 httpproxy_protocol_select="tcp_protocol"
1953 http_protocol_select="tcp_protocol"
1954 https_protocol_select="tls_protocol"
1955 librtmp_protocol_deps="librtmp"
1956 librtmpe_protocol_deps="librtmp"
1957 librtmps_protocol_deps="librtmp"
1958 librtmpt_protocol_deps="librtmp"
1959 librtmpte_protocol_deps="librtmp"
1960 mmsh_protocol_select="http_protocol"
1961 mmst_protocol_select="network"
1962 rtmp_protocol_deps="!librtmp_protocol"
1963 rtmp_protocol_select="tcp_protocol"
1964 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1965 rtmps_protocol_deps="!librtmp_protocol"
1966 rtmps_protocol_select="tls_protocol"
1967 rtmpt_protocol_select="ffrtmphttp_protocol"
1968 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1969 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1970 rtp_protocol_select="udp_protocol"
1971 sctp_protocol_deps="struct_sctp_event_subscribe"
1972 sctp_protocol_select="network"
1973 srtp_protocol_select="rtp_protocol"
1974 tcp_protocol_select="network"
1975 tls_protocol_deps_any="openssl gnutls"
1976 tls_protocol_select="tcp_protocol"
1977 udp_protocol_select="network"
1978
1979 # filters
1980 aconvert_filter_deps="swresample"
1981 amovie_filter_deps="avcodec avformat"
1982 aresample_filter_deps="swresample"
1983 ass_filter_deps="libass"
1984 asyncts_filter_deps="avresample"
1985 atempo_filter_deps="avcodec rdft"
1986 blackframe_filter_deps="gpl"
1987 boxblur_filter_deps="gpl"
1988 colormatrix_filter_deps="gpl"
1989 cropdetect_filter_deps="gpl"
1990 decimate_filter_deps="gpl avcodec"
1991 delogo_filter_deps="gpl"
1992 deshake_filter_deps="avcodec"
1993 drawtext_filter_deps="libfreetype"
1994 ebur128_filter_deps="gpl"
1995 flite_filter_deps="libflite"
1996 frei0r_filter_deps="frei0r dlopen"
1997 frei0r_filter_extralibs='$ldl'
1998 frei0r_src_filter_deps="frei0r dlopen"
1999 frei0r_src_filter_extralibs='$ldl'
2000 geq_filter_deps="gpl"
2001 histeq_filter_deps="gpl"
2002 hqdn3d_filter_deps="gpl"
2003 hue_filter_deps="gpl"
2004 kerndeint_filter_deps="gpl"
2005 movie_filter_deps="avcodec avformat"
2006 mp_filter_deps="gpl avcodec swscale inline_asm"
2007 mptestsrc_filter_deps="gpl"
2008 negate_filter_deps="lut_filter"
2009 resample_filter_deps="avresample"
2010 ocv_filter_deps="libopencv"
2011 pan_filter_deps="swresample"
2012 pp_filter_deps="gpl postproc"
2013 removelogo_filter_deps="avcodec avformat swscale"
2014 scale_filter_deps="swscale"
2015 smartblur_filter_deps="gpl swscale"
2016 showspectrum_filter_deps="avcodec rdft"
2017 subtitles_filter_deps="avformat avcodec libass"
2018 super2xsai_filter_deps="gpl"
2019 tinterlace_filter_deps="gpl"
2020 yadif_filter_deps="gpl"
2021 pixfmts_super2xsai_test_deps="super2xsai_filter"
2022 tinterlace_merge_test_deps="tinterlace_filter"
2023 tinterlace_pad_test_deps="tinterlace_filter"
2024
2025 # libraries
2026 avcodec_deps="avutil"
2027 avdevice_deps="avutil avcodec avformat"
2028 avfilter_deps="avutil"
2029 avformat_deps="avutil avcodec"
2030 avresample_deps="avutil"
2031 postproc_deps="avutil gpl"
2032 swscale_deps="avutil"
2033
2034 # programs
2035 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2036 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2037                setpts_filter null_filter anull_filter ffabuffersink_filter"
2038 ffplay_deps="avcodec avformat swscale swresample sdl"
2039 ffplay_select="ffbuffersink_filter rdft crop_filter"
2040 ffprobe_deps="avcodec avformat"
2041 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2042 ffserver_extralibs='$ldl'
2043
2044 # documentation
2045 podpages_deps="perl"
2046 manpages_deps="perl pod2man"
2047 htmlpages_deps="texi2html"
2048 txtpages_deps="makeinfo"
2049 doc_deps_any="manpages htmlpages podpages txtpages"
2050
2051 # default parameters
2052
2053 logfile="config.log"
2054
2055 # installation paths
2056 prefix_default="/usr/local"
2057 bindir_default='${prefix}/bin'
2058 datadir_default='${prefix}/share/ffmpeg'
2059 incdir_default='${prefix}/include'
2060 libdir_default='${prefix}/lib'
2061 mandir_default='${prefix}/share/man'
2062 shlibdir_default="$libdir_default"
2063
2064 # toolchain
2065 ar_default="ar"
2066 cc_default="gcc"
2067 cxx_default="g++"
2068 host_cc_default="gcc"
2069 cp_f="cp -f"
2070 install="install"
2071 ln_s="ln -sf"
2072 nm_default="nm -g"
2073 objformat="elf"
2074 pkg_config_default=pkg-config
2075 ranlib="ranlib"
2076 strip_default="strip"
2077 yasmexe_default="yasm"
2078
2079 nogas=":"
2080
2081 # machine
2082 arch_default=$(uname -m)
2083 cpu="generic"
2084
2085 # OS
2086 target_os_default=$(tolower $(uname -s))
2087 host_os=$target_os_default
2088
2089 # configurable options
2090 enable $PROGRAM_LIST
2091 enable $DOCUMENT_LIST
2092 enable $(filter_out avresample $LIBRARY_LIST)
2093 enable stripping
2094
2095 enable asm
2096 enable debug
2097 enable doc
2098 enable optimizations
2099 enable runtime_cpudetect
2100 enable safe_bitstream_reader
2101 enable static
2102 enable swscale_alpha
2103
2104 # build settings
2105 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2106 FFSERVERLDFLAGS=-Wl,-E
2107 LIBPREF="lib"
2108 LIBSUF=".a"
2109 FULLNAME='$(NAME)$(BUILDSUF)'
2110 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2111 SLIBPREF="lib"
2112 SLIBSUF=".so"
2113 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2114 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2115 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2116 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2117 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2118 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2119
2120 asflags_filter=echo
2121 cflags_filter=echo
2122 ldflags_filter=echo
2123
2124 AS_C='-c'
2125 AS_O='-o $@'
2126 CC_C='-c'
2127 CC_E='-E -o $@'
2128 CC_O='-o $@'
2129 CXX_C='-c'
2130 CXX_O='-o $@'
2131 LD_O='-o $@'
2132 LD_LIB='-l%'
2133 LD_PATH='-L'
2134 HOSTCC_C='-c'
2135 HOSTCC_O='-o $@'
2136 HOSTLD_O='-o $@'
2137
2138 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2139 host_libs='-lm'
2140 host_cflags_filter=echo
2141 host_ldflags_filter=echo
2142
2143 target_path='$(CURDIR)'
2144
2145 # since the object filename is not given with the -MM flag, the compiler
2146 # is only able to print the basename, and we must add the path ourselves
2147 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2148 DEPFLAGS='-MM'
2149
2150 # find source path
2151 if test -f configure; then
2152     source_path=.
2153 else
2154     source_path=$(cd $(dirname "$0"); pwd)
2155     echo "$source_path" | grep -q '[[:blank:]]' &&
2156         die "Out of tree builds are impossible with whitespace in source path."
2157     test -e "$source_path/config.h" &&
2158         die "Out of tree builds are impossible with config.h in source dir."
2159 fi
2160
2161 for v in "$@"; do
2162     r=${v#*=}
2163     l=${v%"$r"}
2164     r=$(sh_quote "$r")
2165     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2166 done
2167
2168 find_things(){
2169     thing=$1
2170     pattern=$2
2171     file=$source_path/$3
2172     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2173 }
2174
2175 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2176 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2177 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2178 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2179 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2180 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2181 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2182 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2183 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2184 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2185 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2186
2187 ALL_COMPONENTS="
2188     $BSF_LIST
2189     $DECODER_LIST
2190     $DEMUXER_LIST
2191     $ENCODER_LIST
2192     $FILTER_LIST
2193     $HWACCEL_LIST
2194     $INDEV_LIST
2195     $MUXER_LIST
2196     $OUTDEV_LIST
2197     $PARSER_LIST
2198     $PROTOCOL_LIST
2199 "
2200
2201 for n in $COMPONENT_LIST; do
2202     v=$(toupper ${n%s})_LIST
2203     eval enable \$$v
2204     eval ${n}_if_any="\$$v"
2205 done
2206
2207 enable $ARCH_EXT_LIST
2208
2209 die_unknown(){
2210     echo "Unknown option \"$1\"."
2211     echo "See $0 --help for available options."
2212     exit 1
2213 }
2214
2215 show_list() {
2216     suffix=_$1
2217     shift
2218     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2219     exit 0
2220 }
2221
2222 rand_list(){
2223     IFS=', '
2224     set -- $*
2225     unset IFS
2226     for thing; do
2227         comp=${thing%:*}
2228         prob=${thing#$comp}
2229         prob=${prob#:}
2230         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2231         echo "prob ${prob:-0.5}"
2232         printf '%s\n' $comp
2233     done
2234 }
2235
2236 do_random(){
2237     action=$1
2238     shift
2239     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2240     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2241 }
2242
2243 for opt do
2244     optval="${opt#*=}"
2245     case "$opt" in
2246         --extra-ldflags=*)
2247             add_ldflags $optval
2248         ;;
2249         --extra-libs=*)
2250             add_extralibs $optval
2251         ;;
2252         --disable-devices)
2253             disable $INDEV_LIST $OUTDEV_LIST
2254         ;;
2255         --enable-debug=*)
2256             debuglevel="$optval"
2257         ;;
2258         --disable-programs)
2259             disable $PROGRAM_LIST
2260         ;;
2261         --disable-everything)
2262             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2263         ;;
2264         --disable-all)
2265             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2266             disable $LIBRARY_LIST $PROGRAM_LIST doc
2267         ;;
2268         --enable-random|--disable-random)
2269             action=${opt%%-random}
2270             do_random ${action#--} $COMPONENT_LIST
2271         ;;
2272         --enable-random=*|--disable-random=*)
2273             action=${opt%%-random=*}
2274             do_random ${action#--} $optval
2275         ;;
2276         --enable-*=*|--disable-*=*)
2277             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2278             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2279             eval list=\$$(toupper $thing)_LIST
2280             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2281             list=$(filter "$name" $list)
2282             [ "$list" = "" ] && warn "Option $opt did not match anything"
2283             $action $list
2284         ;;
2285         --enable-?*|--disable-?*)
2286             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2287             if is_in $option $COMPONENT_LIST; then
2288                 test $action = disable && action=unset
2289                 eval $action \$$(toupper ${option%s})_LIST
2290             elif is_in $option $CMDLINE_SELECT; then
2291                 $action $option
2292             else
2293                 die_unknown $opt
2294             fi
2295         ;;
2296         --list-*)
2297             NAME="${opt#--list-}"
2298             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2299             NAME=${NAME%s}
2300             eval show_list $NAME \$$(toupper $NAME)_LIST
2301         ;;
2302         --help|-h) show_help
2303         ;;
2304         --fatal-warnings) enable fatal_warnings
2305         ;;
2306         *)
2307             optname="${opt%%=*}"
2308             optname="${optname#--}"
2309             optname=$(echo "$optname" | sed 's/-/_/g')
2310             if is_in $optname $CMDLINE_SET; then
2311                 eval $optname='$optval'
2312             elif is_in $optname $CMDLINE_APPEND; then
2313                 append $optname "$optval"
2314             else
2315                 die_unknown $opt
2316             fi
2317         ;;
2318     esac
2319 done
2320
2321 disabled logging && logfile=/dev/null
2322
2323 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2324 set >> $logfile
2325
2326 test -n "$cross_prefix" && enable cross_compile
2327
2328 if enabled cross_compile; then
2329     test -n "$arch" && test -n "$target_os" ||
2330         die "Must specify target arch and OS when cross-compiling"
2331 fi
2332
2333 ar_default="${cross_prefix}${ar_default}"
2334 cc_default="${cross_prefix}${cc_default}"
2335 cxx_default="${cross_prefix}${cxx_default}"
2336 nm_default="${cross_prefix}${nm_default}"
2337 pkg_config_default="${cross_prefix}${pkg_config_default}"
2338 ranlib="${cross_prefix}${ranlib}"
2339 strip_default="${cross_prefix}${strip_default}"
2340
2341 sysinclude_default="${sysroot}/usr/include"
2342
2343 case "$toolchain" in
2344     clang-asan)
2345         cc_default="clang"
2346         add_cflags  -faddress-sanitizer
2347         add_ldflags -faddress-sanitizer
2348     ;;
2349     clang-tsan)
2350         cc_default="clang"
2351         add_cflags  -fthread-sanitizer
2352         add_ldflags -fthread-sanitizer
2353     ;;
2354     msvc)
2355         cc_default="c99wrap cl"
2356         ld_default="c99wrap link"
2357         nm_default="dumpbin -symbols"
2358         ar_default="lib"
2359         target_os_default="win32"
2360     ;;
2361     ?*)
2362         die "Unknown toolchain $toolchain"
2363     ;;
2364 esac
2365
2366 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2367 enabled cross_compile || host_cc_default=$cc
2368 set_default host_cc
2369
2370 if ! $pkg_config --version >/dev/null 2>&1; then
2371     warn "$pkg_config not found, library detection may fail."
2372     pkg_config=false
2373 fi
2374
2375 exesuf() {
2376     case $1 in
2377         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2378     esac
2379 }
2380
2381 EXESUF=$(exesuf $target_os)
2382 HOSTEXESUF=$(exesuf $host_os)
2383
2384 # set temporary file name
2385 : ${TMPDIR:=$TEMPDIR}
2386 : ${TMPDIR:=$TMP}
2387 : ${TMPDIR:=/tmp}
2388
2389 if ! check_cmd mktemp -u XXXXXX; then
2390     # simple replacement for missing mktemp
2391     # NOT SAFE FOR GENERAL USE
2392     mktemp(){
2393         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2394     }
2395 fi
2396
2397 tmpfile(){
2398     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2399         (set -C; exec > $tmp) 2>/dev/null ||
2400         die "Unable to create temporary file in $TMPDIR."
2401     append TMPFILES $tmp
2402     eval $1=$tmp
2403 }
2404
2405 trap 'rm -f -- $TMPFILES' EXIT
2406
2407 tmpfile TMPASM .asm
2408 tmpfile TMPC   .c
2409 tmpfile TMPCPP .cpp
2410 tmpfile TMPE   $EXESUF
2411 tmpfile TMPH   .h
2412 tmpfile TMPO   .o
2413 tmpfile TMPS   .S
2414 tmpfile TMPSH  .sh
2415 tmpfile TMPV   .ver
2416
2417 unset -f mktemp
2418
2419 chmod +x $TMPE
2420
2421 # make sure we can execute files in $TMPDIR
2422 cat > $TMPSH 2>> $logfile <<EOF
2423 #! /bin/sh
2424 EOF
2425 chmod +x $TMPSH >> $logfile 2>&1
2426 if ! $TMPSH >> $logfile 2>&1; then
2427     cat <<EOF
2428 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2429 variable to another directory and make sure that it is not mounted noexec.
2430 EOF
2431     die "Sanity test failed."
2432 fi
2433
2434 ccc_flags(){
2435     for flag; do
2436         case $flag in
2437             -std=c99)           echo -c99                       ;;
2438             -mcpu=*)            echo -arch ${flag#*=}           ;;
2439             -mieee)             echo -ieee                      ;;
2440             -O*|-fast)          echo $flag                      ;;
2441             -fno-math-errno)    echo -assume nomath_errno       ;;
2442             -g)                 echo -g3                        ;;
2443             -Wall)              echo -msg_enable level2         ;;
2444             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2445             -Wl,*)              echo $flag                      ;;
2446             -f*|-W*)                                            ;;
2447             *)                  echo $flag                      ;;
2448         esac
2449    done
2450 }
2451
2452 msvc_flags(){
2453     for flag; do
2454         case $flag in
2455             -fomit-frame-pointer) echo -Oy ;;
2456             -g)                   echo -Z7 ;;
2457             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2458                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2459                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2460                                        -wd4554 \
2461                                        -wd4996 -wd4273 ;;
2462             -std=c99)             ;;
2463             -fno-math-errno)      ;;
2464             -fno-common)          ;;
2465             -fno-signed-zeros)    ;;
2466             -fPIC)                ;;
2467             -lz)                  echo zlib.lib ;;
2468             -lavifil32)           echo vfw32.lib ;;
2469             -lavicap32)           echo vfw32.lib user32.lib ;;
2470             -l*)                  echo ${flag#-l}.lib ;;
2471             *)                    echo $flag ;;
2472         esac
2473     done
2474 }
2475
2476 pgi_flags(){
2477     for flag; do
2478         case $flag in
2479             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2480             -fomit-frame-pointer) echo -Mnoframe ;;
2481             -g)                   echo -gopt ;;
2482             *)                    echo $flag ;;
2483         esac
2484     done
2485 }
2486
2487 suncc_flags(){
2488     for flag; do
2489         case $flag in
2490             -march=*|-mcpu=*)
2491                 case "${flag#*=}" in
2492                     native)                   echo -xtarget=native       ;;
2493                     v9|niagara)               echo -xarch=sparc          ;;
2494                     ultrasparc)               echo -xarch=sparcvis       ;;
2495                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2496                     i586|pentium)             echo -xchip=pentium        ;;
2497                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2498                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2499                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2500                     pentium4*)          echo -xtarget=pentium4           ;;
2501                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2502                     *-sse3)             echo -xarch=sse3                 ;;
2503                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2504                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2505                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2506                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2507                     bdver*)                   echo -xarch=avx            ;;
2508                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2509                     k8|opteron|athlon64|athlon-fx)
2510                                               echo -xarch=sse2a          ;;
2511                     athlon*)                  echo -xarch=pentium_proa   ;;
2512                 esac
2513                 ;;
2514             -std=c99)             echo -xc99              ;;
2515             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2516             -fPIC)                echo -KPIC -xcode=pic32 ;;
2517             -W*,*)                echo $flag              ;;
2518             -f*-*|-W*|-mimpure-text)                      ;;
2519             -shared)              echo -G                 ;;
2520             *)                    echo $flag              ;;
2521         esac
2522     done
2523 }
2524
2525 tms470_flags(){
2526     for flag; do
2527         case $flag in
2528             -march=*|-mcpu=*)
2529                 case "${flag#*=}" in
2530                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2531                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2532                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2533                     armv6*|arm11*)          echo -mv=6   ;;
2534                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2535                                             echo -mv=5e  ;;
2536                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2537                 esac
2538                 ;;
2539             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2540             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2541             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2542             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2543             -msoft-float)   echo --float_support=vfplib       ;;
2544             -O[0-3]|-mf=*)  echo $flag                        ;;
2545             -g)             echo -g -mn                       ;;
2546             -pds=*)         echo $flag                        ;;
2547             -D*|-I*)        echo $flag                        ;;
2548             --gcc|--abi=*)  echo $flag                        ;;
2549             -me)            echo $flag                        ;;
2550         esac
2551     done
2552 }
2553
2554 probe_cc(){
2555     pfx=$1
2556     _cc=$2
2557
2558     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2559     unset _ld_o _ldflags _ld_lib _ld_path
2560     unset _depflags _DEPCMD _DEPFLAGS
2561     _flags_filter=echo
2562
2563     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2564         _type=llvm_gcc
2565         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2566         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2567         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2568         _cflags_speed='-O3'
2569         _cflags_size='-Os'
2570     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2571         _type=gcc
2572         gcc_version=$($_cc --version | head -n1)
2573         gcc_basever=$($_cc -dumpversion)
2574         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2575         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2576         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2577         if ! $_cc -dumpversion | grep -q '^2\.'; then
2578             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2579         fi
2580         _cflags_speed='-O3'
2581         _cflags_size='-Os'
2582     elif $_cc --version 2>/dev/null | grep -q Intel; then
2583         _type=icc
2584         _ident=$($_cc --version | head -n1)
2585         _depflags='-MMD'
2586         _cflags_speed='-O3'
2587         _cflags_size='-Os'
2588         _cflags_noopt='-O1'
2589     elif $_cc -v 2>&1 | grep -q xlc; then
2590         _type=xlc
2591         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2592         _cflags_speed='-O5'
2593         _cflags_size='-O5 -qcompact'
2594     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2595         _type=ccc
2596         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2597         _DEPFLAGS='-M'
2598         _cflags_speed='-fast'
2599         _cflags_size='-O1'
2600         _flags_filter=ccc_flags
2601     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2602         test -d "$sysroot" || die "No valid sysroot specified."
2603         _type=armcc
2604         _ident=$($_cc --vsn | head -n1)
2605         armcc_conf="$PWD/armcc.conf"
2606         $_cc --arm_linux_configure                 \
2607              --arm_linux_config_file="$armcc_conf" \
2608              --configure_sysroot="$sysroot"        \
2609              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2610              die "Error creating armcc configuration file."
2611         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2612         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2613         as_default="${cross_prefix}gcc"
2614         _depflags='-MMD'
2615         _cflags_speed='-O3'
2616         _cflags_size='-Os'
2617     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2618         _type=tms470
2619         _ident=$($_cc -version | head -n1 | tr -s ' ')
2620         _flags='--gcc --abi=eabi -me'
2621         _cc_e='-ppl -fe=$@'
2622         _cc_o='-fe=$@'
2623         _depflags='-ppa -ppd=$(@:.o=.d)'
2624         _cflags_speed='-O3 -mf=5'
2625         _cflags_size='-O3 -mf=2'
2626         _flags_filter=tms470_flags
2627     elif $_cc -v 2>&1 | grep -q clang; then
2628         _type=clang
2629         _ident=$($_cc --version | head -n1)
2630         _depflags='-MMD'
2631         _cflags_speed='-O3'
2632         _cflags_size='-Os'
2633     elif $_cc -V 2>&1 | grep -q Sun; then
2634         _type=suncc
2635         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2636         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2637         _DEPFLAGS='-xM1 -xc99'
2638         _ldflags='-std=c99'
2639         _cflags_speed='-O5'
2640         _cflags_size='-O5 -xspace'
2641         _flags_filter=suncc_flags
2642     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2643         _type=pathscale
2644         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2645         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2646         _cflags_speed='-O2'
2647         _cflags_size='-Os'
2648         _flags_filter='filter_out -Wdisabled-optimization'
2649     elif $_cc -v 2>&1 | grep -q Open64; then
2650         _type=open64
2651         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2652         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2653         _cflags_speed='-O2'
2654         _cflags_size='-Os'
2655         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2656     elif $_cc -V 2>&1 | grep -q Portland; then
2657         _type=pgi
2658         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2659         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2660         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2661         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2662         _cflags_noopt="-O1"
2663         _flags_filter=pgi_flags
2664     elif $_cc 2>&1 | grep -q Microsoft; then
2665         _type=msvc
2666         _ident=$($cc 2>&1 | head -n1)
2667         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2668         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2669         _cflags_speed="-O2"
2670         _cflags_size="-O1"
2671         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2672         if $_cc 2>&1 | grep -q Linker; then
2673             _ld_o='-out $@'
2674         else
2675             _ld_o='-Fe$@'
2676         fi
2677         _cc_o='-Fo $@'
2678         _cc_e='-P -Fi $@'
2679         _flags_filter=msvc_flags
2680         _ld_lib='lib%.a'
2681         _ld_path='-libpath:'
2682         _flags='-nologo'
2683         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2684         if [ $pfx = hostcc ]; then
2685             append _cflags -Dsnprintf=_snprintf
2686         fi
2687         disable stripping
2688     fi
2689
2690     eval ${pfx}_type=\$_type
2691     eval ${pfx}_ident=\$_ident
2692 }
2693
2694 set_ccvars(){
2695     eval ${1}_C=\${_cc_c-\${${1}_C}}
2696     eval ${1}_E=\${_cc_e-\${${1}_E}}
2697     eval ${1}_O=\${_cc_o-\${${1}_O}}
2698
2699     if [ -n "$_depflags" ]; then
2700         eval ${1}_DEPFLAGS=\$_depflags
2701     else
2702         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2703         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2704         eval DEP${1}FLAGS=\$_flags
2705     fi
2706 }
2707
2708 probe_cc cc "$cc"
2709 cflags_filter=$_flags_filter
2710 cflags_speed=$_cflags_speed
2711 cflags_size=$_cflags_size
2712 cflags_noopt=$_cflags_noopt
2713 add_cflags $_flags $_cflags
2714 cc_ldflags=$_ldflags
2715 set_ccvars CC
2716
2717 probe_cc hostcc "$host_cc"
2718 host_cflags_filter=$_flags_filter
2719 add_host_cflags  $_flags $_cflags
2720 set_ccvars HOSTCC
2721
2722 test -n "$cc_type" && enable $cc_type ||
2723     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2724
2725 : ${as_default:=$cc}
2726 : ${dep_cc_default:=$cc}
2727 : ${ld_default:=$cc}
2728 : ${host_ld_default:=$host_cc}
2729 set_default ar as dep_cc ld host_ld
2730
2731 probe_cc as "$as"
2732 asflags_filter=$_flags_filter
2733 add_asflags $_flags $_cflags
2734 set_ccvars AS
2735
2736 probe_cc ld "$ld"
2737 ldflags_filter=$_flags_filter
2738 add_ldflags $_flags $_ldflags
2739 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2740 LD_O=${_ld_o-$LD_O}
2741 LD_LIB=${_ld_lib-$LD_LIB}
2742 LD_PATH=${_ld_path-$LD_PATH}
2743
2744 probe_cc hostld "$host_ld"
2745 host_ldflags_filter=$_flags_filter
2746 add_host_ldflags $_flags $_ldflags
2747 HOSTLD_O=${_ld_o-$HOSTLD_O}
2748
2749 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2750     probe_cc depcc "$dep_cc"
2751     CCDEP=${_DEPCMD:-$DEPCMD}
2752     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2753     DEPCCFLAGS=$_flags
2754 fi
2755
2756 if $ar 2>&1 | grep -q Microsoft; then
2757     arflags="-nologo"
2758     ar_o='-out:$@'
2759 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2760     arflags="rq"
2761     ar_o='$@'
2762 else
2763     arflags="rc"
2764     ar_o='$@'
2765 fi
2766
2767 add_cflags $extra_cflags
2768 add_cxxflags $extra_cxxflags
2769 add_asflags $extra_cflags
2770
2771 if test -n "$sysroot"; then
2772     case "$cc_type" in
2773         gcc|llvm_gcc|clang)
2774             add_cppflags --sysroot="$sysroot"
2775             add_ldflags --sysroot="$sysroot"
2776         ;;
2777         tms470)
2778             add_cppflags -I"$sysinclude"
2779             add_ldflags  --sysroot="$sysroot"
2780         ;;
2781     esac
2782 fi
2783
2784 if test "$cpu" = host; then
2785     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2786
2787     case "$cc_type" in
2788         gcc|llvm_gcc)
2789             check_native(){
2790                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2791                 sed -n "/cc1.*$1=/{
2792                             s/.*$1=\\([^ ]*\\).*/\\1/
2793                             p
2794                             q
2795                         }" $TMPE
2796             }
2797             cpu=$(check_native -march || check_native -mcpu)
2798         ;;
2799     esac
2800
2801     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2802 fi
2803
2804 # Deal with common $arch aliases
2805 case "$arch" in
2806     aarch64|arm64)
2807         arch="aarch64"
2808     ;;
2809     arm*|iPad*)
2810         arch="arm"
2811     ;;
2812     mips*|IP*)
2813         arch="mips"
2814     ;;
2815     parisc*|hppa*)
2816         arch="parisc"
2817     ;;
2818     "Power Macintosh"|ppc*|powerpc*)
2819         arch="ppc"
2820     ;;
2821     s390|s390x)
2822         arch="s390"
2823     ;;
2824     sh4|sh)
2825         arch="sh4"
2826     ;;
2827     sun4u|sparc*)
2828         arch="sparc"
2829     ;;
2830     tilegx|tile-gx)
2831         arch="tilegx"
2832     ;;
2833     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2834         arch="x86"
2835     ;;
2836 esac
2837
2838 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2839 enable $arch
2840
2841 # Add processor-specific flags
2842 if enabled aarch64; then
2843
2844     case $cpu in
2845         armv*)
2846             cpuflags="-march=$cpu"
2847         ;;
2848         *)
2849             cpuflags="-mcpu=$cpu"
2850         ;;
2851     esac
2852
2853 elif enabled alpha; then
2854
2855     cpuflags="-mcpu=$cpu"
2856
2857 elif enabled arm; then
2858
2859     check_arm_arch() {
2860         check_cpp_condition stddef.h \
2861             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2862             $cpuflags
2863     }
2864
2865     probe_arm_arch() {
2866         if   check_arm_arch 4;        then echo armv4;
2867         elif check_arm_arch 4T;       then echo armv4t;
2868         elif check_arm_arch 5;        then echo armv5;
2869         elif check_arm_arch 5E;       then echo armv5e;
2870         elif check_arm_arch 5T;       then echo armv5t;
2871         elif check_arm_arch 5TE;      then echo armv5te;
2872         elif check_arm_arch 5TEJ;     then echo armv5te;
2873         elif check_arm_arch 6;        then echo armv6;
2874         elif check_arm_arch 6J;       then echo armv6j;
2875         elif check_arm_arch 6K;       then echo armv6k;
2876         elif check_arm_arch 6Z;       then echo armv6z;
2877         elif check_arm_arch 6ZK;      then echo armv6zk;
2878         elif check_arm_arch 6T2;      then echo armv6t2;
2879         elif check_arm_arch 7;        then echo armv7;
2880         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2881         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2882         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2883         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2884         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2885         fi
2886     }
2887
2888     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2889
2890     case $cpu in
2891         armv*)
2892             cpuflags="-march=$cpu"
2893             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2894         ;;
2895         *)
2896             cpuflags="-mcpu=$cpu"
2897             case $cpu in
2898                 cortex-a*)                               subarch=armv7a  ;;
2899                 cortex-r*)                               subarch=armv7r  ;;
2900                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2901                 arm11*)                                  subarch=armv6   ;;
2902                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2903                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2904                 *)                             subarch=$(probe_arm_arch) ;;
2905             esac
2906         ;;
2907     esac
2908
2909     case "$subarch" in
2910         armv5t*)    enable fast_clz                ;;
2911         armv[6-8]*) enable fast_clz fast_unaligned ;;
2912     esac
2913
2914 elif enabled avr32; then
2915
2916     case $cpu in
2917         ap7[02]0[0-2])
2918             subarch="avr32_ap"
2919             cpuflags="-mpart=$cpu"
2920         ;;
2921         ap)
2922             subarch="avr32_ap"
2923             cpuflags="-march=$cpu"
2924         ;;
2925         uc3[ab]*)
2926             subarch="avr32_uc"
2927             cpuflags="-mcpu=$cpu"
2928         ;;
2929         uc)
2930             subarch="avr32_uc"
2931             cpuflags="-march=$cpu"
2932         ;;
2933     esac
2934
2935 elif enabled bfin; then
2936
2937     cpuflags="-mcpu=$cpu"
2938
2939 elif enabled mips; then
2940
2941     cpuflags="-march=$cpu"
2942
2943     case $cpu in
2944         24kc)
2945             disable mipsfpu
2946             disable mipsdspr1
2947             disable mipsdspr2
2948         ;;
2949         24kf*)
2950             disable mipsdspr1
2951             disable mipsdspr2
2952         ;;
2953         24kec|34kc|1004kc)
2954             disable mipsfpu
2955             disable mipsdspr2
2956         ;;
2957         24kef*|34kf*|1004kf*)
2958             disable mipsdspr2
2959         ;;
2960         74kc)
2961             disable mipsfpu
2962         ;;
2963     esac
2964
2965 elif enabled ppc; then
2966
2967     case $(tolower $cpu) in
2968         601|ppc601|powerpc601)
2969             cpuflags="-mcpu=601"
2970             disable altivec
2971         ;;
2972         603*|ppc603*|powerpc603*)
2973             cpuflags="-mcpu=603"
2974             disable altivec
2975         ;;
2976         604*|ppc604*|powerpc604*)
2977             cpuflags="-mcpu=604"
2978             disable altivec
2979         ;;
2980         g3|75*|ppc75*|powerpc75*)
2981             cpuflags="-mcpu=750"
2982             disable altivec
2983         ;;
2984         g4|745*|ppc745*|powerpc745*)
2985             cpuflags="-mcpu=7450"
2986         ;;
2987         74*|ppc74*|powerpc74*)
2988             cpuflags="-mcpu=7400"
2989         ;;
2990         g5|970|ppc970|powerpc970)
2991             cpuflags="-mcpu=970"
2992         ;;
2993         power[3-7]*)
2994             cpuflags="-mcpu=$cpu"
2995         ;;
2996         cell)
2997             cpuflags="-mcpu=cell"
2998             enable ldbrx
2999         ;;
3000         e500mc)
3001             cpuflags="-mcpu=e500mc"
3002             disable altivec
3003         ;;
3004         e500v2)
3005             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3006             disable altivec
3007         ;;
3008         e500)
3009             cpuflags="-mcpu=8540 -mhard-float"
3010             disable altivec
3011         ;;
3012     esac
3013
3014 elif enabled sparc; then
3015
3016     case $cpu in
3017         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3018             cpuflags="-mcpu=$cpu"
3019             disable vis
3020         ;;
3021         ultrasparc*|niagara[234])
3022             cpuflags="-mcpu=$cpu"
3023         ;;
3024     esac
3025
3026 elif enabled x86; then
3027
3028     case $cpu in
3029         i[345]86|pentium)
3030             cpuflags="-march=$cpu"
3031             disable mmx
3032         ;;
3033         # targets that do NOT support conditional mov (cmov)
3034         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3035             cpuflags="-march=$cpu"
3036             disable cmov
3037         ;;
3038         # targets that do support conditional mov (cmov)
3039         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3040             cpuflags="-march=$cpu"
3041             enable cmov
3042             enable fast_cmov
3043         ;;
3044         # targets that do support conditional mov but on which it's slow
3045         pentium4|pentium4m|prescott|nocona)
3046             cpuflags="-march=$cpu"
3047             enable cmov
3048             disable fast_cmov
3049         ;;
3050     esac
3051
3052 fi
3053
3054 if [ "$cpu" != generic ]; then
3055     add_cflags  $cpuflags
3056     add_asflags $cpuflags
3057 fi
3058
3059 # compiler sanity check
3060 check_exec <<EOF
3061 int main(void){ return 0; }
3062 EOF
3063 if test "$?" != 0; then
3064     echo "$cc is unable to create an executable file."
3065     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3066         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3067         echo "Only do this if you know what cross compiling means."
3068     fi
3069     die "C compiler test failed."
3070 fi
3071
3072 add_cppflags -D_ISOC99_SOURCE
3073 add_cxxflags -D__STDC_CONSTANT_MACROS
3074 check_cflags -std=c99
3075 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3076 #include <stdlib.h>
3077 EOF
3078 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3079 #include <stdlib.h>
3080 EOF
3081
3082 check_host_cflags -std=c99
3083 check_host_cflags -Wall
3084
3085 check_64bit(){
3086     arch32=$1
3087     arch64=$2
3088     expr=$3
3089     check_code cc "" "int test[2*($expr) - 1]" &&
3090         subarch=$arch64 || subarch=$arch32
3091 }
3092
3093 case "$arch" in
3094     aarch64|alpha|ia64)
3095         spic=$shared
3096     ;;
3097     mips)
3098         check_64bit mips mips64 '_MIPS_SIM > 1'
3099         spic=$shared
3100     ;;
3101     parisc)
3102         check_64bit parisc parisc64 'sizeof(void *) > 4'
3103         spic=$shared
3104     ;;
3105     ppc)
3106         check_64bit ppc ppc64 'sizeof(void *) > 4'
3107         spic=$shared
3108     ;;
3109     sparc)
3110         check_64bit sparc sparc64 'sizeof(void *) > 4'
3111         spic=$shared
3112     ;;
3113     x86)
3114         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3115         if test "$subarch" = "x86_64"; then
3116             spic=$shared
3117         fi
3118     ;;
3119     ppc)
3120         check_cc <<EOF && subarch="ppc64"
3121         int test[(int)sizeof(char*) - 7];
3122 EOF
3123     ;;
3124 esac
3125
3126 enable $subarch
3127 enabled spic && enable pic
3128
3129 # OS specific
3130 case $target_os in
3131     haiku)
3132         prefix_default="/boot/common"
3133         network_extralibs="-lnetwork"
3134         host_libs=
3135         ;;
3136     sunos)
3137         FFSERVERLDFLAGS=""
3138         SHFLAGS='-shared -Wl,-h,$$(@F)'
3139         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3140         network_extralibs="-lsocket -lnsl"
3141         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3142         # When using suncc to build, the Solaris linker will mark
3143         # an executable with each instruction set encountered by
3144         # the Solaris assembler.  As our libraries contain their own
3145         # guards for processor-specific code, instead suppress
3146         # generation of the HWCAPS ELF section on Solaris x86 only.
3147         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3148         nm_default='nm -P -g'
3149         ;;
3150     netbsd)
3151         disable symver
3152         oss_indev_extralibs="-lossaudio"
3153         oss_outdev_extralibs="-lossaudio"
3154         enabled gcc || check_ldflags -Wl,-zmuldefs
3155         ;;
3156     openbsd|bitrig)
3157         # On OpenBSD 4.5. the compiler does not use PIC unless
3158         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3159         # however the generated executable will not do anything
3160         # (simply quits with exit-code 1, no crash, no output).
3161         # Thus explicitly enable PIC here.
3162         enable pic
3163         disable symver
3164         SHFLAGS='-shared'
3165         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3166         SLIB_INSTALL_LINKS=
3167         oss_indev_extralibs="-lossaudio"
3168         oss_outdev_extralibs="-lossaudio"
3169         ;;
3170     dragonfly)
3171         disable symver
3172         ;;
3173     freebsd)
3174         ;;
3175     bsd/os)
3176         add_extralibs -lpoll -lgnugetopt
3177         strip="strip -d"
3178         ;;
3179     darwin)
3180         gas="gas-preprocessor.pl $cc"
3181         enabled ppc && add_asflags -force_cpusubtype_ALL
3182         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3183         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3184         strip="${strip} -x"
3185         add_ldflags -Wl,-dynamic,-search_paths_first
3186         SLIBSUF=".dylib"
3187         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3188         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3189         FFSERVERLDFLAGS=-Wl,-bind_at_load
3190         objformat="macho"
3191         enabled x86_64 && objformat="macho64"
3192         enabled_any pic shared ||
3193             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3194         ;;
3195     mingw32*)
3196         if test $target_os = "mingw32ce"; then
3197             disable network
3198         else
3199             target_os=mingw32
3200         fi
3201         LIBTARGET=i386
3202         if enabled x86_64; then
3203             LIBTARGET="i386:x86-64"
3204         elif enabled arm; then
3205             LIBTARGET=arm-wince
3206         fi
3207         shlibdir_default="$bindir_default"
3208         SLIBPREF=""
3209         SLIBSUF=".dll"
3210         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3211         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3212         dlltool="${cross_prefix}dlltool"
3213         if check_cmd lib.exe -list; then
3214             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3215             if enabled x86_64; then
3216                 LIBTARGET=x64
3217             fi
3218         elif check_cmd $dlltool --version; then
3219             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3220         fi
3221         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3222         SLIB_INSTALL_LINKS=
3223         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3224         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3225         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3226         objformat="win32"
3227         ranlib=:
3228         enable dos_paths
3229         add_cppflags -U__STRICT_ANSI__
3230         ;;
3231     win32|win64)
3232         if enabled shared; then
3233             # Link to the import library instead of the normal static library
3234             # for shared libs.
3235             LD_LIB='%.lib'
3236             # Cannot build shared and static libraries at the same time with
3237             # MSVC.
3238             disable static
3239         fi
3240         shlibdir_default="$bindir_default"
3241         SLIBPREF=""
3242         SLIBSUF=".dll"
3243         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3244         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3245         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3246         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3247         SLIB_INSTALL_LINKS=
3248         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3249         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3250         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3251         objformat="win32"
3252         ranlib=:
3253         enable dos_paths
3254         ;;
3255     cygwin*)
3256         target_os=cygwin
3257         shlibdir_default="$bindir_default"
3258         SLIBPREF="cyg"
3259         SLIBSUF=".dll"
3260         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3261         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3262         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3263         SLIB_INSTALL_LINKS=
3264         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3265         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3266         objformat="win32"
3267         enable dos_paths
3268         ;;
3269     *-dos|freedos|opendos)
3270         network_extralibs="-lsocket"
3271         objformat="coff"
3272         enable dos_paths
3273         add_cppflags -U__STRICT_ANSI__
3274         ;;
3275     linux)
3276         enable dv1394
3277         ;;
3278     irix*)
3279         target_os=irix
3280         ranlib="echo ignoring ranlib"
3281         ;;
3282     os/2*)
3283         strip="lxlite -CS"
3284         ln_s="cp -f"
3285         objformat="aout"
3286         add_cppflags -D_GNU_SOURCE
3287         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3288         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3289         FFSERVERLDFLAGS=""
3290         LIBSUF="_s.a"
3291         SLIBPREF=""
3292         SLIBSUF=".dll"
3293         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3294         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3295         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3296             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3297             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3298             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3299             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3300             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3301         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3302             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3303         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3304         enable dos_paths
3305         enable_weak os2threads
3306         ;;
3307     gnu/kfreebsd)
3308         add_cppflags -D_BSD_SOURCE
3309         ;;
3310     gnu)
3311         ;;
3312     qnx)
3313         add_cppflags -D_QNX_SOURCE
3314         network_extralibs="-lsocket"
3315         ;;
3316     symbian)
3317         SLIBSUF=".dll"
3318         enable dos_paths
3319         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3320         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3321         add_ldflags -Wl,--target1-abs,--no-undefined \
3322                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3323                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3324         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3325                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3326                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3327         ;;
3328     osf1)
3329         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3330         FFSERVERLDFLAGS=
3331         ;;
3332     minix)
3333         ;;
3334     plan9)
3335         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3336                      -D_REENTRANT_SOURCE        \
3337                      -D_RESEARCH_SOURCE         \
3338                      -DFD_SETSIZE=96            \
3339                      -DHAVE_SOCK_OPTS
3340         add_compat strtod.o strtod=avpriv_strtod
3341         network_extralibs='-lbsd'
3342         exeobjs=compat/plan9/main.o
3343         disable ffserver
3344         ln_s='ln -s -f'
3345         cp_f='cp'
3346         ;;
3347     none)
3348         ;;
3349     *)
3350         die "Unknown OS '$target_os'."
3351         ;;
3352 esac
3353
3354 # determine libc flavour
3355
3356 if check_cpp_condition features.h "defined __UCLIBC__"; then
3357     libc_type=uclibc
3358     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3359 elif check_cpp_condition features.h "defined __GLIBC__"; then
3360     libc_type=glibc
3361     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3362 elif check_header _mingw.h; then
3363     libc_type=mingw
3364     check_cpp_condition _mingw.h \
3365         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3366             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3367         die "ERROR: MinGW runtime version must be >= 3.15."
3368     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3369             __MINGW64_VERSION_MAJOR < 3"; then
3370         add_compat msvcrt/snprintf.o
3371         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3372     fi
3373 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3374     libc_type=newlib
3375     add_cppflags -U__STRICT_ANSI__
3376 elif check_func_headers stdlib.h _get_doserrno; then
3377     libc_type=msvcrt
3378     add_compat strtod.o strtod=avpriv_strtod
3379     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3380                                  _snprintf=avpriv_snprintf  \
3381                                  vsnprintf=avpriv_vsnprintf
3382 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3383     libc_type=klibc
3384 fi
3385
3386 test -n "$libc_type" && enable $libc_type
3387
3388 # hacks for compiler/libc/os combinations
3389
3390 if enabled_all tms470 glibc; then
3391     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3392     add_cppflags -D__USER_LABEL_PREFIX__=
3393     add_cppflags -D__builtin_memset=memset
3394     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3395     add_cflags   -pds=48    # incompatible redefinition of macro
3396 fi
3397
3398 if enabled_all ccc glibc; then
3399     add_ldflags -Wl,-z,now  # calls to libots crash without this
3400 fi
3401
3402 esc(){
3403     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3404 }
3405
3406 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3407
3408 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3409
3410 set_default $PATHS_LIST
3411 set_default nm
3412
3413 # we need to build at least one lib type
3414 if ! enabled_any static shared; then
3415     cat <<EOF
3416 At least one library type must be built.
3417 Specify --enable-static to build the static libraries or --enable-shared to
3418 build the shared libraries as well. To only build the shared libraries specify
3419 --disable-static in addition to --enable-shared.
3420 EOF
3421     exit 1;
3422 fi
3423
3424 die_license_disabled() {
3425     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3426 }
3427
3428 die_license_disabled_gpl() {
3429     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3430 }
3431
3432 die_license_disabled gpl libcdio
3433 die_license_disabled gpl libutvideo
3434 die_license_disabled gpl libx264
3435 die_license_disabled gpl libxavs
3436 die_license_disabled gpl libxvid
3437 die_license_disabled gpl x11grab
3438
3439 die_license_disabled nonfree libaacplus
3440 die_license_disabled nonfree libfaac
3441 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3442 enabled gpl && die_license_disabled_gpl nonfree openssl
3443
3444 die_license_disabled version3 libopencore_amrnb
3445 die_license_disabled version3 libopencore_amrwb
3446 die_license_disabled version3 libvo_aacenc
3447 die_license_disabled version3 libvo_amrwbenc
3448
3449 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3450
3451 disabled optimizations || check_cflags -fomit-frame-pointer
3452
3453 enable_pic() {
3454     enable pic
3455     add_cppflags -DPIC
3456     add_cflags   -fPIC
3457     add_asflags  -fPIC
3458 }
3459
3460 enabled pic && enable_pic
3461
3462 check_cc <<EOF || die "Symbol mangling check failed."
3463 int ff_extern;
3464 EOF
3465 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3466 extern_prefix=${sym%%ff_extern*}
3467
3468 check_cc <<EOF && enable_weak inline_asm
3469 void foo(void) { __asm__ volatile ("" ::); }
3470 EOF
3471
3472 _restrict=
3473 for restrict_keyword in restrict __restrict__ __restrict; do
3474     check_cc <<EOF && _restrict=$restrict_keyword && break
3475 void foo(char * $restrict_keyword p);
3476 EOF
3477 done
3478
3479 check_cc <<EOF && enable attribute_packed
3480 struct { int x; } __attribute__((packed)) x;
3481 EOF
3482
3483 check_cc <<EOF && enable attribute_may_alias
3484 union { int x; } __attribute__((may_alias)) x;
3485 EOF
3486
3487 check_cc <<EOF || die "endian test failed"
3488 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3489 EOF
3490 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3491
3492 if enabled alpha; then
3493
3494     check_cflags -mieee
3495
3496 elif enabled arm; then
3497
3498     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3499 float func(float a, float b){ return a+b; }
3500 EOF
3501
3502     enabled thumb && check_cflags -mthumb || check_cflags -marm
3503     nogas=die
3504
3505     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3506         enable vfp_args
3507     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3508         case "${cross_prefix:-$cc}" in
3509             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3510             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3511 __asm__ (".eabi_attribute 28, 1");
3512 int main(void) { return 0; }
3513 EOF
3514         esac
3515         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3516     fi
3517
3518     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3519     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3520     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3521     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3522     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3523     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3524
3525     [ $target_os = linux ] ||
3526         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3527             $ARCH_EXT_LIST_ARM
3528
3529     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3530     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3531
3532     enabled_all armv6t2 shared !pic && enable_pic
3533
3534 elif enabled mips; then
3535
3536     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3537     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3538      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3539     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3540      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3541     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3542      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3543     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3544      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3545
3546 elif enabled parisc; then
3547
3548     if enabled gcc; then
3549         case $($cc -dumpversion) in
3550             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3551         esac
3552     fi
3553
3554 elif enabled ppc; then
3555
3556     enable local_aligned_8 local_aligned_16
3557
3558     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3559     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3560     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3561     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3562
3563     # AltiVec flags: The FSF version of GCC differs from the Apple version
3564     if enabled altivec; then
3565         nogas=warn
3566         check_cflags -maltivec -mabi=altivec &&
3567         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3568         check_cflags -faltivec
3569
3570         # check if our compiler supports Motorola AltiVec C API
3571         check_cc <<EOF || disable altivec
3572 $inc_altivec_h
3573 int main(void) {
3574     vector signed int v1 = (vector signed int) { 0 };
3575     vector signed int v2 = (vector signed int) { 1 };
3576     v1 = vec_add(v1, v2);
3577     return 0;
3578 }
3579 EOF
3580
3581         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3582     fi
3583
3584 elif enabled sparc; then
3585
3586     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3587
3588 elif enabled x86; then
3589
3590     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3591
3592     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3593
3594     enable local_aligned_8 local_aligned_16
3595
3596     # check whether EBP is available on x86
3597     # As 'i' is stored on the stack, this program will crash
3598     # if the base pointer is used to access it because the
3599     # base pointer is cleared in the inline assembly code.
3600     check_exec_crash <<EOF && enable ebp_available
3601 volatile int i=0;
3602 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3603 return i;
3604 EOF
3605
3606     # check whether EBX is available on x86
3607     check_inline_asm ebx_available '""::"b"(0)' &&
3608         check_inline_asm ebx_available '"":::"%ebx"'
3609
3610     # check whether xmm clobbers are supported
3611     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3612
3613     # check whether binutils is new enough to compile SSSE3/MMXEXT
3614     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3615     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3616
3617     if ! disabled_any asm mmx yasm; then
3618         if check_cmd $yasmexe --version; then
3619             enabled x86_64 && yasm_extra="-m amd64"
3620             yasm_debug="-g dwarf2"
3621         elif check_cmd nasm -v; then
3622             yasmexe=nasm
3623             yasm_debug="-g -F dwarf"
3624             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3625         fi
3626
3627         YASMFLAGS="-f $objformat $yasm_extra"
3628         enabled pic               && append YASMFLAGS "-DPIC"
3629         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3630         case "$objformat" in
3631             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3632         esac
3633
3634         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3635             die "yasm not found, use --disable-yasm for a crippled build"
3636         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3637         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3638         check_yasm "CPU amdnop" && enable cpunop
3639     fi
3640
3641     case "$cpu" in
3642         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3643             disable fast_clz
3644         ;;
3645     esac
3646
3647 fi
3648
3649 if enabled asm; then
3650     as=${gas:=$as}
3651     check_as <<EOF && enable gnu_as || \
3652         $nogas "GNU assembler not found, install gas-preprocessor"
3653 .macro m n
3654 \n: .int 0
3655 .endm
3656 m x
3657 EOF
3658 fi
3659
3660 check_ldflags -Wl,--as-needed
3661
3662 if check_func dlopen; then
3663     ldl=
3664 elif check_func dlopen -ldl; then
3665     ldl=-ldl
3666 fi
3667
3668 if ! disabled network; then
3669     check_type "sys/types.h sys/socket.h" socklen_t
3670     check_type netdb.h "struct addrinfo"
3671     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3672     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3673     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3674     check_type netinet/in.h "struct sockaddr_in6"
3675     check_type poll.h "struct pollfd"
3676     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3677     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3678     check_type netinet/sctp.h "struct sctp_event_subscribe"
3679     check_func getaddrinfo $network_extralibs
3680     check_func getservbyport $network_extralibs
3681     # Prefer arpa/inet.h over winsock2
3682     if check_header arpa/inet.h ; then
3683         check_func closesocket
3684     elif check_header winsock2.h ; then
3685         check_func_headers winsock2.h closesocket -lws2 &&
3686             network_extralibs="-lws2" ||
3687         { check_func_headers winsock2.h closesocket -lws2_32 &&
3688             network_extralibs="-lws2_32"; }
3689         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3690         check_type ws2tcpip.h socklen_t
3691         check_type ws2tcpip.h "struct addrinfo"
3692         check_type ws2tcpip.h "struct group_source_req"
3693         check_type ws2tcpip.h "struct ip_mreq_source"
3694         check_type ws2tcpip.h "struct ipv6_mreq"
3695         check_type winsock2.h "struct pollfd"
3696         check_type ws2tcpip.h "struct sockaddr_in6"
3697         check_type ws2tcpip.h "struct sockaddr_storage"
3698         check_struct winsock2.h "struct sockaddr" sa_len
3699     else
3700         disable network
3701     fi
3702 fi
3703
3704 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3705 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3706
3707 check_func  access
3708 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3709 check_func  fcntl
3710 check_func  fork
3711 check_func  gethrtime
3712 check_func  getopt
3713 check_func  getrusage
3714 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3715 check_func  gettimeofday
3716 check_func  inet_aton $network_extralibs
3717 check_func  isatty
3718 check_func  localtime_r
3719 check_func  ${malloc_prefix}memalign            && enable memalign
3720 check_func  mkstemp
3721 check_func  mmap
3722 check_func  mprotect
3723 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3724 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3725 check_func  setrlimit
3726 check_func  strerror_r
3727 check_func  sched_getaffinity
3728 check_func  sysconf
3729 check_func  sysctl
3730 check_func  usleep
3731 check_func_headers conio.h kbhit
3732 check_func_headers windows.h PeekNamedPipe
3733 check_func_headers io.h setmode
3734 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3735 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3736 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3737 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3738 check_func_headers windows.h GetProcessAffinityMask
3739 check_func_headers windows.h GetProcessTimes
3740 check_func_headers windows.h GetSystemTimeAsFileTime
3741 check_func_headers windows.h MapViewOfFile
3742 check_func_headers windows.h SetConsoleTextAttribute
3743 check_func_headers windows.h Sleep
3744 check_func_headers windows.h VirtualAlloc
3745 check_func_headers glob.h glob
3746
3747 check_header direct.h
3748 check_header dlfcn.h
3749 check_header dxva.h
3750 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3751 check_header io.h
3752 check_header libcrystalhd/libcrystalhd_if.h
3753 check_header malloc.h
3754 check_header poll.h
3755 check_header sys/mman.h
3756 check_header sys/param.h
3757 check_header sys/resource.h
3758 check_header sys/select.h
3759 check_header sys/time.h
3760 check_header termios.h
3761 check_header unistd.h
3762 check_header vdpau/vdpau.h
3763 check_header vdpau/vdpau_x11.h
3764 check_header windows.h
3765 check_header X11/extensions/XvMClib.h
3766 check_header asm/types.h
3767
3768 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3769 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3770
3771 # check for VDA header
3772 if ! disabled vda && ! enabled ppc; then
3773     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3774         enable vda
3775         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3776     fi
3777 fi
3778
3779 if ! disabled w32threads && ! enabled pthreads; then
3780     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3781 fi
3782
3783 # check for some common methods of building with pthread support
3784 # do this before the optional library checks as some of them require pthreads
3785 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3786     enable pthreads
3787     if check_func pthread_create; then
3788         :
3789     elif check_func pthread_create -pthread; then
3790         add_cflags -pthread
3791         add_extralibs -pthread
3792     elif check_func pthread_create -pthreads; then
3793         add_cflags -pthreads
3794         add_extralibs -pthreads
3795     elif check_func pthread_create -lpthreadGC2; then
3796         add_extralibs -lpthreadGC2
3797     elif ! check_lib pthread.h pthread_create -lpthread; then
3798         disable pthreads
3799     fi
3800 fi
3801
3802 for thread in $THREADS_LIST; do
3803     if enabled $thread; then
3804         test -n "$thread_type" &&
3805             die "ERROR: Only one thread type must be selected." ||
3806             thread_type="$thread"
3807     fi
3808 done
3809
3810 if enabled pthreads; then
3811   check_func pthread_cancel
3812 fi
3813
3814 check_lib math.h sin -lm && LIBM="-lm"
3815 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3816 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3817
3818 atan2f_args=2
3819 ldexpf_args=2
3820 powf_args=2
3821
3822 for func in $MATH_FUNCS; do
3823     eval check_mathfunc $func \${${func}_args:-1}
3824 done
3825
3826 # these are off by default, so fail if requested and not available
3827 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3828 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3829 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3830 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3831 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3832 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3833 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3834 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3835 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3836                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3837                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3838 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3839 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3840 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3841 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"
3842 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3843 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3844 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3845                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3846                         done || die "ERROR: libgsm not found"; }
3847 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3848 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3849 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3850 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3851 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3852 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3853 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3854 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3855                          check_lib openjpeg.h opj_version -lopenjpeg ||
3856                          die "ERROR: libopenjpeg not found"; }
3857 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3858 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3859 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3860 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3861 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3862 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3863 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3864     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3865     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3866 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3867 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3868                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3869                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3870 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3871 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3872 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3873 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3874 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3875 enabled libvpx     && {
3876     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3877                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3878     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3879                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3880     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3881     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3882 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3883                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3884                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3885 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3886 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3887 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3888                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3889                         die "ERROR: openal not found"; } &&
3890                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3891                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3892 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3893                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3894                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3895                         die "ERROR: openssl not found"; }
3896
3897 if enabled gnutls; then
3898     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3899     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3900 fi
3901
3902 # libdc1394 check
3903 if enabled libdc1394; then
3904     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3905         enable libdc1394_2; } ||
3906     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3907         enable libdc1394_1; } ||
3908     die "ERROR: No version of libdc1394 found "
3909 fi
3910
3911 SDL_CONFIG="${cross_prefix}sdl-config"
3912 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3913     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3914     enable sdl &&
3915     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3916 else
3917   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3918     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3919     sdl_libs=$("${SDL_CONFIG}" --libs)
3920     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3921     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3922     enable sdl &&
3923     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3924   fi
3925 fi
3926 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3927
3928 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3929 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3930 perl --version > /dev/null 2>&1 && enable perl || disable perl
3931 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3932 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3933
3934 check_header linux/fb.h
3935 check_header linux/videodev.h
3936 check_header linux/videodev2.h
3937 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3938
3939 check_header sys/videoio.h
3940
3941 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3942 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3943 # w32api 3.12 had it defined wrong
3944 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3945
3946 check_type "dshow.h" IBaseFilter
3947
3948 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3949 { check_header dev/bktr/ioctl_meteor.h &&
3950   check_header dev/bktr/ioctl_bt848.h; } ||
3951 { check_header machine/ioctl_meteor.h &&
3952   check_header machine/ioctl_bt848.h; } ||
3953 { check_header dev/video/meteor/ioctl_meteor.h &&
3954   check_header dev/video/bktr/ioctl_bt848.h; } ||
3955 check_header dev/ic/bt8xx.h
3956
3957 check_header sndio.h
3958 if check_struct sys/soundcard.h audio_buf_info bytes; then
3959     enable_safe sys/soundcard.h
3960 else
3961     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3962     #include <sys/soundcard.h>
3963     audio_buf_info abc;
3964 EOF
3965 fi
3966 check_header soundcard.h
3967
3968 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3969
3970 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3971     check_func jack_port_get_latency_range -ljack
3972
3973 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3974
3975 if enabled libcdio; then
3976     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3977 fi
3978
3979 enabled x11grab                                           &&
3980 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3981 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3982 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3983
3984 if ! disabled vaapi; then
3985     check_lib va/va.h vaInitialize -lva && {
3986         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3987         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3988     } || disable vaapi
3989 fi
3990
3991 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3992     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3993         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3994 fi
3995
3996 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3997 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3998 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"
3999
4000 # add some useful compiler flags if supported
4001 check_cflags -Wdeclaration-after-statement
4002 check_cflags -Wall
4003 check_cflags -Wno-parentheses
4004 check_cflags -Wno-switch
4005 check_cflags -Wno-format-zero-length
4006 check_cflags -Wdisabled-optimization
4007 check_cflags -Wpointer-arith
4008 check_cflags -Wredundant-decls
4009 check_cflags -Wno-pointer-sign
4010 check_cflags -Wwrite-strings
4011 check_cflags -Wtype-limits
4012 check_cflags -Wundef
4013 check_cflags -Wmissing-prototypes
4014 check_cflags -Wno-pointer-to-int-cast
4015 check_cflags -Wstrict-prototypes
4016 enabled extra_warnings && check_cflags -Winline
4017
4018 # add some linker flags
4019 check_ldflags -Wl,--warn-common
4020 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4021 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4022
4023 enabled xmm_clobber_test &&
4024     check_ldflags -Wl,--wrap,avcodec_open2              \
4025                   -Wl,--wrap,avcodec_decode_audio4      \
4026                   -Wl,--wrap,avcodec_decode_video2      \
4027                   -Wl,--wrap,avcodec_decode_subtitle2   \
4028                   -Wl,--wrap,avcodec_encode_audio2      \
4029                   -Wl,--wrap,avcodec_encode_video       \
4030                   -Wl,--wrap,avcodec_encode_subtitle    \
4031                   -Wl,--wrap,sws_scale ||
4032     disable xmm_clobber_test
4033
4034 echo "X{};" > $TMPV
4035 if test_ldflags -Wl,--version-script,$TMPV; then
4036     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4037     check_cc <<EOF && enable symver_asm_label
4038 void ff_foo(void) __asm__ ("av_foo@VERSION");
4039 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4040 EOF
4041     check_cc <<EOF && enable symver_gnu_asm
4042 __asm__(".symver ff_foo,av_foo@VERSION");
4043 void ff_foo(void) {}
4044 EOF
4045 fi
4046
4047 if [ -z "$optflags" ]; then
4048     if enabled small; then
4049         optflags=$cflags_size
4050     elif enabled optimizations; then
4051         optflags=$cflags_speed
4052     else
4053         optflags=$cflags_noopt
4054     fi
4055 fi
4056
4057 check_optflags(){
4058     check_cflags "$@"
4059     enabled lto && check_ldflags "$@"
4060 }
4061
4062
4063 if enabled lto; then
4064     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4065     check_cflags  -flto
4066     check_ldflags -flto $cpuflags
4067 fi
4068
4069 check_optflags $optflags
4070 check_optflags -fno-math-errno
4071 check_optflags -fno-signed-zeros
4072
4073 enabled ftrapv && check_cflags -ftrapv
4074
4075 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4076 int x;
4077 EOF
4078
4079
4080 if enabled icc; then
4081     # Just warnings, no remarks
4082     check_cflags -w1
4083     # -wd: Disable following warnings
4084     # 144, 167, 556: -Wno-pointer-sign
4085     # 188: enumerated type mixed with another type
4086     # 1292: attribute "foo" ignored
4087     # 1419: external declaration in primary source file
4088     # 10006: ignoring unknown option -fno-signed-zeros
4089     # 10148: ignoring unknown option -Wno-parentheses
4090     # 10156: ignoring option '-W'; no argument required
4091     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4092     # 11030: Warning unknown option --as-needed
4093     # 10156: ignoring option '-export'; no argument required
4094     check_ldflags -wd10156,11030
4095     # Allow to compile with optimizations
4096     check_ldflags -march=$cpu
4097     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4098     enable ebp_available
4099     if enabled x86_32; then
4100         icc_version=$($cc -dumpversion)
4101         test ${icc_version%%.*} -ge 11 &&
4102             check_cflags -falign-stack=maintain-16-byte ||
4103             disable aligned_stack
4104     fi
4105 elif enabled ccc; then
4106     # disable some annoying warnings
4107     add_cflags -msg_disable bitnotint
4108     add_cflags -msg_disable mixfuncvoid
4109     add_cflags -msg_disable nonstandcast
4110     add_cflags -msg_disable unsupieee
4111 elif enabled gcc; then
4112     check_optflags -fno-tree-vectorize
4113     check_cflags -Werror=implicit-function-declaration
4114     check_cflags -Werror=missing-prototypes
4115     check_cflags -Werror=return-type
4116     check_cflags -Werror=vla
4117 elif enabled llvm_gcc; then
4118     check_cflags -mllvm -stack-alignment=16
4119 elif enabled clang; then
4120     check_cflags -mllvm -stack-alignment=16
4121     check_cflags -Qunused-arguments
4122     check_cflags -Werror=implicit-function-declaration
4123     check_cflags -Werror=missing-prototypes
4124     check_cflags -Werror=return-type
4125 elif enabled armcc; then
4126     # 2523: use of inline assembler is deprecated
4127     add_cflags -W${armcc_opt},--diag_suppress=2523
4128     add_cflags -W${armcc_opt},--diag_suppress=1207
4129     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4130     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4131     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4132     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4133 elif enabled tms470; then
4134     add_cflags -pds=824 -pds=837
4135 elif enabled pathscale; then
4136     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4137 elif enabled msvc; then
4138     enabled x86_32 && disable aligned_stack
4139 fi
4140
4141 case $target_os in
4142     osf1)
4143         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4144     ;;
4145     plan9)
4146         add_cppflags -Dmain=plan9_main
4147     ;;
4148 esac
4149
4150 enabled_any $THREADS_LIST      && enable threads
4151
4152 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4153
4154 check_deps $CONFIG_LIST       \
4155            $CONFIG_EXTRA      \
4156            $HAVE_LIST         \
4157            $ALL_COMPONENTS    \
4158
4159
4160 if test $target_os = "haiku"; then
4161     disable memalign
4162     disable posix_memalign
4163 fi
4164
4165 ! enabled_any memalign posix_memalign aligned_malloc &&
4166     enabled_any $need_memalign && enable memalign_hack
4167
4168 # add_dep lib dep
4169 # -> enable ${lib}_deps_${dep}
4170 # -> add $dep to ${lib}_deps only once
4171 add_dep() {
4172     lib=$1
4173     dep=$2
4174     enabled "${lib}_deps_${dep}" && return 0
4175     enable  "${lib}_deps_${dep}"
4176     prepend "${lib}_deps" $dep
4177 }
4178
4179 # merge deps lib components
4180 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4181 merge_deps() {
4182     lib=$1
4183     shift
4184     for comp in $*; do
4185         enabled $comp || continue
4186         eval "dep=\"\$${comp}_deps\""
4187         for d in $dep; do
4188             add_dep $lib $d
4189         done
4190     done
4191 }
4192
4193 merge_deps libavfilter $FILTER_LIST
4194
4195 echo "install prefix            $prefix"
4196 echo "source path               $source_path"
4197 echo "C compiler                $cc"
4198 echo "ARCH                      $arch ($cpu)"
4199 if test "$build_suffix" != ""; then
4200     echo "build suffix              $build_suffix"
4201 fi
4202 if test "$progs_suffix" != ""; then
4203     echo "progs suffix              $progs_suffix"
4204 fi
4205 if test "$extra_version" != ""; then
4206     echo "version string suffix     $extra_version"
4207 fi
4208 echo "big-endian                ${bigendian-no}"
4209 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4210 if enabled x86; then
4211     echo "${yasmexe}                      ${yasm-no}"
4212     echo "MMX enabled               ${mmx-no}"
4213     echo "MMXEXT enabled            ${mmxext-no}"
4214     echo "3DNow! enabled            ${amd3dnow-no}"
4215     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4216     echo "SSE enabled               ${sse-no}"
4217     echo "SSSE3 enabled             ${ssse3-no}"
4218     echo "AVX enabled               ${avx-no}"
4219     echo "FMA4 enabled              ${fma4-no}"
4220     echo "CMOV enabled              ${cmov-no}"
4221     echo "CMOV is fast              ${fast_cmov-no}"
4222     echo "EBX available             ${ebx_available-no}"
4223     echo "EBP available             ${ebp_available-no}"
4224 fi
4225 if enabled arm; then
4226     echo "ARMv5TE enabled           ${armv5te-no}"
4227     echo "ARMv6 enabled             ${armv6-no}"
4228     echo "ARMv6T2 enabled           ${armv6t2-no}"
4229     echo "VFP enabled               ${vfp-no}"
4230     echo "NEON enabled              ${neon-no}"
4231     echo "THUMB enabled             ${thumb-no}"
4232 fi
4233 if enabled mips; then
4234     echo "MIPS FPU enabled          ${mipsfpu-no}"
4235     echo "MIPS32R2 enabled          ${mips32r2-no}"
4236     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4237     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4238 fi
4239 if enabled ppc; then
4240     echo "AltiVec enabled           ${altivec-no}"
4241     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4242     echo "dcbzl available           ${dcbzl-no}"
4243 fi
4244 if enabled sparc; then
4245     echo "VIS enabled               ${vis-no}"
4246 fi
4247 echo "debug symbols             ${debug-no}"
4248 echo "strip symbols             ${stripping-no}"
4249 echo "optimize for size         ${small-no}"
4250 echo "optimizations             ${optimizations-no}"
4251 echo "static                    ${static-no}"
4252 echo "shared                    ${shared-no}"
4253 echo "postprocessing support    ${postproc-no}"
4254 echo "new filter support        ${avfilter-no}"
4255 echo "network support           ${network-no}"
4256 echo "threading support         ${thread_type-no}"
4257 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4258 echo "SDL support               ${sdl-no}"
4259 echo "libdxva2 enabled          ${dxva2-no}"
4260 echo "libva enabled             ${vaapi-no}"
4261 echo "libvdpau enabled          ${vdpau-no}"
4262 echo "AVISynth enabled          ${avisynth-no}"
4263 echo "frei0r enabled            ${frei0r-no}"
4264 echo "gnutls enabled            ${gnutls-no}"
4265 echo "libaacplus enabled        ${libaacplus-no}"
4266 echo "libass enabled            ${libass-no}"
4267 echo "libcaca enabled           ${libcaca-no}"
4268 echo "libcdio support           ${libcdio-no}"
4269 echo "libcelt enabled           ${libcelt-no}"
4270 echo "libdc1394 support         ${libdc1394-no}"
4271 echo "libfaac enabled           ${libfaac-no}"
4272 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4273 echo "libgsm enabled            ${libgsm-no}"
4274 echo "libiec61883 support       ${libiec61883-no}"
4275 echo "libilbc enabled           ${libilbc-no}"
4276 echo "libmodplug enabled        ${libmodplug-no}"
4277 echo "libmp3lame enabled        ${libmp3lame-no}"
4278 echo "libnut enabled            ${libnut-no}"
4279 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4280 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4281 echo "libopencv support         ${libopencv-no}"
4282 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4283 echo "libopus enabled           ${libopus-no}"
4284 echo "libpulse enabled          ${libpulse-no}"
4285 echo "librtmp enabled           ${librtmp-no}"
4286 echo "libschroedinger enabled   ${libschroedinger-no}"
4287 echo "libsoxr enabled           ${libsoxr-no}"
4288 echo "libspeex enabled          ${libspeex-no}"
4289 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4290 echo "libtheora enabled         ${libtheora-no}"
4291 echo "libtwolame enabled        ${libtwolame-no}"
4292 echo "libutvideo enabled        ${libutvideo-no}"
4293 echo "libv4l2 enabled           ${libv4l2-no}"
4294 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4295 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4296 echo "libvorbis enabled         ${libvorbis-no}"
4297 echo "libvpx enabled            ${libvpx-no}"
4298 echo "libx264 enabled           ${libx264-no}"
4299 echo "libxavs enabled           ${libxavs-no}"
4300 echo "libxvid enabled           ${libxvid-no}"
4301 echo "openal enabled            ${openal-no}"
4302 echo "openssl enabled           ${openssl-no}"
4303 echo "zlib enabled              ${zlib-no}"
4304 echo "bzlib enabled             ${bzlib-no}"
4305 echo "texi2html enabled         ${texi2html-no}"
4306 echo "perl enabled              ${perl-no}"
4307 echo "pod2man enabled           ${pod2man-no}"
4308 echo "makeinfo enabled          ${makeinfo-no}"
4309 test -n "$random_seed" &&
4310     echo "random seed               ${random_seed}"
4311 echo
4312
4313 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4314     echo "Enabled ${type}s:"
4315     eval list=\$$(toupper $type)_LIST
4316     print_enabled '_*' $list | sort | pr -r -3 -t
4317     echo
4318 done
4319
4320 license="LGPL version 2.1 or later"
4321 if enabled nonfree; then
4322     license="nonfree and unredistributable"
4323 elif enabled gplv3; then
4324     license="GPL version 3 or later"
4325 elif enabled lgplv3; then
4326     license="LGPL version 3 or later"
4327 elif enabled gpl; then
4328     license="GPL version 2 or later"
4329 fi
4330
4331 echo "License: $license"
4332
4333 echo "Creating config.mak and config.h..."
4334
4335 test -e Makefile || $ln_s "$source_path/Makefile" .
4336
4337 enabled stripping || strip="echo skipping strip"
4338
4339 config_files="$TMPH config.mak"
4340
4341 cat > config.mak <<EOF
4342 # Automatically generated by configure - do not modify!
4343 ifndef FFMPEG_CONFIG_MAK
4344 FFMPEG_CONFIG_MAK=1
4345 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4346 prefix=$prefix
4347 LIBDIR=\$(DESTDIR)$libdir
4348 SHLIBDIR=\$(DESTDIR)$shlibdir
4349 INCDIR=\$(DESTDIR)$incdir
4350 BINDIR=\$(DESTDIR)$bindir
4351 DATADIR=\$(DESTDIR)$datadir
4352 MANDIR=\$(DESTDIR)$mandir
4353 SRC_PATH=$source_path
4354 ifndef MAIN_MAKEFILE
4355 SRC_PATH:=\$(SRC_PATH:.%=..%)
4356 endif
4357 CC_IDENT=$cc_ident
4358 ARCH=$arch
4359 CC=$cc
4360 CXX=$cxx
4361 AS=$as
4362 LD=$ld
4363 DEPCC=$dep_cc
4364 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4365 DEPAS=$as
4366 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4367 YASM=$yasmexe
4368 DEPYASM=$yasmexe
4369 AR=$ar
4370 ARFLAGS=$arflags
4371 AR_O=$ar_o
4372 RANLIB=$ranlib
4373 CP=cp -p
4374 LN_S=$ln_s
4375 STRIP=$strip
4376 CPPFLAGS=$CPPFLAGS
4377 CFLAGS=$CFLAGS
4378 CXXFLAGS=$CXXFLAGS
4379 ASFLAGS=$ASFLAGS
4380 AS_C=$AS_C
4381 AS_O=$AS_O
4382 CC_C=$CC_C
4383 CC_E=$CC_E
4384 CC_O=$CC_O
4385 CXX_C=$CXX_C
4386 CXX_O=$CXX_O
4387 LD_O=$LD_O
4388 LD_LIB=$LD_LIB
4389 LD_PATH=$LD_PATH
4390 DLLTOOL=$dlltool
4391 LDFLAGS=$LDFLAGS
4392 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4393 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4394 YASMFLAGS=$YASMFLAGS
4395 BUILDSUF=$build_suffix
4396 PROGSSUF=$progs_suffix
4397 FULLNAME=$FULLNAME
4398 LIBPREF=$LIBPREF
4399 LIBSUF=$LIBSUF
4400 LIBNAME=$LIBNAME
4401 SLIBPREF=$SLIBPREF
4402 SLIBSUF=$SLIBSUF
4403 EXESUF=$EXESUF
4404 EXTRA_VERSION=$extra_version
4405 CCDEP=$CCDEP
4406 CXXDEP=$CXXDEP
4407 CCDEP_FLAGS=$CCDEP_FLAGS
4408 ASDEP=$ASDEP
4409 ASDEP_FLAGS=$ASDEP_FLAGS
4410 CC_DEPFLAGS=$CC_DEPFLAGS
4411 AS_DEPFLAGS=$AS_DEPFLAGS
4412 HOSTCC=$host_cc
4413 HOSTLD=$host_ld
4414 HOSTCFLAGS=$host_cflags
4415 HOSTEXESUF=$HOSTEXESUF
4416 HOSTLDFLAGS=$host_ldflags
4417 HOSTLIBS=$host_libs
4418 DEPHOSTCC=$host_cc
4419 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4420 HOSTCCDEP=$HOSTCCDEP
4421 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4422 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4423 HOSTCC_C=$HOSTCC_C
4424 HOSTCC_O=$HOSTCC_O
4425 HOSTLD_O=$HOSTLD_O
4426 TARGET_EXEC=$target_exec
4427 TARGET_PATH=$target_path
4428 LIBS-ffplay=$sdl_libs
4429 CFLAGS-ffplay=$sdl_cflags
4430 ZLIB=$($ldflags_filter -lz)
4431 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4432 EXTRALIBS=$extralibs
4433 COMPAT_OBJS=$compat_objs
4434 EXEOBJS=$exeobjs
4435 INSTALL=$install
4436 LIBTARGET=${LIBTARGET}
4437 SLIBNAME=${SLIBNAME}
4438 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4439 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4440 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4441 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4442 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4443 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4444 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4445 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4446 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4447 NOREDZONE_FLAGS=$noredzone_flags
4448 EOF
4449
4450 get_version(){
4451     lcname=lib${1}
4452     name=$(toupper $lcname)
4453     file=$source_path/$lcname/version.h
4454     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4455     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4456     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4457     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4458 }
4459
4460 map 'get_version $v' $LIBRARY_LIST
4461
4462 cat > $TMPH <<EOF
4463 /* Automatically generated by configure - do not modify! */
4464 #ifndef FFMPEG_CONFIG_H
4465 #define FFMPEG_CONFIG_H
4466 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4467 #define FFMPEG_LICENSE "$(c_escape $license)"
4468 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4469 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4470 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4471 #define av_restrict $_restrict
4472 #define EXTERN_PREFIX "${extern_prefix}"
4473 #define EXTERN_ASM ${extern_prefix}
4474 #define SLIBSUF "$SLIBSUF"
4475 #define HAVE_MMX2 HAVE_MMXEXT
4476 EOF
4477
4478 test -n "$assert_level" &&
4479     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4480
4481 test -n "$malloc_prefix" &&
4482     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4483
4484 if enabled yasm; then
4485     append config_files $TMPASM
4486     printf '' >$TMPASM
4487 fi
4488
4489 print_config ARCH_   "$config_files" $ARCH_LIST
4490 print_config HAVE_   "$config_files" $HAVE_LIST
4491 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4492                                      $CONFIG_EXTRA      \
4493                                      $ALL_COMPONENTS    \
4494
4495 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4496 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4497
4498 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4499 cp_if_changed $TMPH config.h
4500 touch .config
4501
4502 enabled yasm && cp_if_changed $TMPASM config.asm
4503
4504 cat > $TMPH <<EOF
4505 /* Generated by ffconf */
4506 #ifndef AVUTIL_AVCONFIG_H
4507 #define AVUTIL_AVCONFIG_H
4508 EOF
4509
4510 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4511
4512 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4513
4514 cp_if_changed $TMPH libavutil/avconfig.h
4515
4516 if test -n "$WARNINGS"; then
4517     printf "\n$WARNINGS"
4518     enabled fatal_warnings && exit 1
4519 fi
4520
4521 # build pkg-config files
4522
4523 pkgconfig_generate(){
4524     name=$1
4525     shortname=${name#lib}${build_suffix}
4526     comment=$2
4527     version=$3
4528     libs=$4
4529     requires=$5
4530     enabled ${name#lib} || return 0
4531     mkdir -p $name
4532     cat <<EOF > $name/$name.pc
4533 prefix=$prefix
4534 exec_prefix=\${prefix}
4535 libdir=$libdir
4536 includedir=$incdir
4537
4538 Name: $name
4539 Description: $comment
4540 Version: $version
4541 Requires: $(enabled shared || echo $requires)
4542 Requires.private: $(enabled shared && echo $requires)
4543 Conflicts:
4544 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4545 Libs.private: $(enabled shared && echo $libs)
4546 Cflags: -I\${includedir}
4547 EOF
4548
4549 mkdir -p doc/examples/pc-uninstalled
4550 includedir=${source_path}
4551 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4552     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4553 prefix=
4554 exec_prefix=
4555 libdir=\${pcfiledir}/../../../$name
4556 includedir=${includedir}
4557
4558 Name: $name
4559 Description: $comment
4560 Version: $version
4561 Requires: $requires
4562 Conflicts:
4563 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4564 Cflags: -I\${includedir}
4565 EOF
4566 }
4567
4568 libavfilter_pc_deps="libavutil = $LIBAVUTIL_VERSION"
4569 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4570 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4571 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample = $LIBAVRESAMPLE_VERSION,"
4572 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4573 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4574 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4575 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4576
4577 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4578 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4579
4580 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4581 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4582 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4583 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4584 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4585 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4586 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4587 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4588 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4589
4590 fix_ffmpeg_remote(){
4591     git_remote_from=$1
4592     git_remote_to=$2
4593     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4594     if [ "$fixme_remote" != "" ]; then
4595         echolog "
4596 Outdated domain in git config, the official domain for ffmpeg git is since
4597 November 2011, source.ffmpeg.org, both the old and the new point to the same
4598 repository and server. To update it enter the following commands:
4599 "
4600         for remote in $fixme_remote; do
4601             echolog "git remote set-url $remote $git_remote_to"
4602         done
4603     fi
4604 }
4605
4606 if test -f "$source_path/.git/config"; then
4607     remote_from=git.videolan.org
4608     remote_to=source.ffmpeg.org
4609     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4610     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4611 fi