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     cbrtf
1304     cosf
1305     exp2
1306     exp2f
1307     expf
1308     isinf
1309     isnan
1310     ldexpf
1311     llrint
1312     llrintf
1313     log2
1314     log2f
1315     log10f
1316     lrint
1317     lrintf
1318     powf
1319     rint
1320     round
1321     roundf
1322     sinf
1323     trunc
1324     truncf
1325 "
1326
1327 HAVE_LIST="
1328     $ARCH_EXT_LIST
1329     $(add_suffix _external $ARCH_EXT_LIST)
1330     $(add_suffix _inline   $ARCH_EXT_LIST)
1331     $HAVE_LIST_CMDLINE
1332     $HAVE_LIST_PUB
1333     $THREADS_LIST
1334     $MATH_FUNCS
1335     access
1336     aligned_malloc
1337     aligned_stack
1338     alsa_asoundlib_h
1339     altivec_h
1340     arpa_inet_h
1341     asm_mod_q
1342     asm_mod_y
1343     asm_types_h
1344     attribute_may_alias
1345     attribute_packed
1346     cdio_paranoia_h
1347     cdio_paranoia_paranoia_h
1348     clock_gettime
1349     closesocket
1350     cmov
1351     CommandLineToArgvW
1352     cpunop
1353     CryptGenRandom
1354     dcbzl
1355     dev_bktr_ioctl_bt848_h
1356     dev_bktr_ioctl_meteor_h
1357     dev_ic_bt8xx_h
1358     dev_video_bktr_ioctl_bt848_h
1359     dev_video_meteor_ioctl_meteor_h
1360     direct_h
1361     dlfcn_h
1362     dlopen
1363     dos_paths
1364     dxva_h
1365     ebp_available
1366     ebx_available
1367     fast_64bit
1368     fast_clz
1369     fast_cmov
1370     fcntl
1371     fork
1372     getaddrinfo
1373     gethrtime
1374     getopt
1375     GetProcessAffinityMask
1376     GetProcessMemoryInfo
1377     GetProcessTimes
1378     GetSystemTimeAsFileTime
1379     getrusage
1380     getservbyport
1381     gettimeofday
1382     glob
1383     gnu_as
1384     gsm_h
1385     ibm_asm
1386     inet_aton
1387     io_h
1388     isatty
1389     jack_port_get_latency_range
1390     kbhit
1391     ldbrx
1392     libdc1394_1
1393     libdc1394_2
1394     local_aligned_16
1395     local_aligned_8
1396     localtime_r
1397     loongson
1398     lzo1x_999_compress
1399     machine_ioctl_bt848_h
1400     machine_ioctl_meteor_h
1401     makeinfo
1402     malloc_h
1403     MapViewOfFile
1404     memalign
1405     mkstemp
1406     mm_empty
1407     mmap
1408     mprotect
1409     msvcrt
1410     nanosleep
1411     openjpeg_1_5_openjpeg_h
1412     PeekNamedPipe
1413     perl
1414     pod2man
1415     poll_h
1416     posix_memalign
1417     pthread_cancel
1418     rdtsc
1419     rsync_contimeout
1420     sched_getaffinity
1421     sdl
1422     sdl_video_size
1423     SetConsoleTextAttribute
1424     setmode
1425     setrlimit
1426     Sleep
1427     sndio_h
1428     socklen_t
1429     soundcard_h
1430     strerror_r
1431     struct_addrinfo
1432     struct_group_source_req
1433     struct_ip_mreq_source
1434     struct_ipv6_mreq
1435     struct_pollfd
1436     struct_rusage_ru_maxrss
1437     struct_sctp_event_subscribe
1438     struct_sockaddr_in6
1439     struct_sockaddr_sa_len
1440     struct_sockaddr_storage
1441     struct_v4l2_frmivalenum_discrete
1442     symver_asm_label
1443     symver_gnu_asm
1444     sysconf
1445     sysctl
1446     sys_mman_h
1447     sys_param_h
1448     sys_resource_h
1449     sys_select_h
1450     sys_soundcard_h
1451     sys_time_h
1452     sys_videoio_h
1453     termios_h
1454     texi2html
1455     threads
1456     unistd_h
1457     usleep
1458     vfp_args
1459     VirtualAlloc
1460     windows_h
1461     winsock2_h
1462     xform_asm
1463     xmm_clobbers
1464 "
1465
1466 # options emitted with CONFIG_ prefix but not available on the command line
1467 CONFIG_EXTRA="
1468     aandcttables
1469     ac3dsp
1470     error_resilience
1471     gcrypt
1472     golomb
1473     gplv3
1474     h264chroma
1475     h264dsp
1476     h264pred
1477     h264qpel
1478     huffman
1479     lgplv3
1480     lpc
1481     mpegaudio
1482     mpegaudiodsp
1483     mpegvideo
1484     mpegvideoenc
1485     nettle
1486     rangecoder
1487     rtpdec
1488     rtpenc_chain
1489     sinewin
1490     videodsp
1491     vp3dsp
1492 "
1493
1494 CMDLINE_SELECT="
1495     $ARCH_EXT_LIST
1496     $CONFIG_LIST
1497     $HAVE_LIST_CMDLINE
1498     $THREADS_LIST
1499     asm
1500     coverage
1501     cross_compile
1502     debug
1503     extra_warnings
1504     logging
1505     lto
1506     optimizations
1507     stripping
1508 "
1509
1510 PATHS_LIST='
1511     bindir
1512     datadir
1513     incdir
1514     libdir
1515     mandir
1516     prefix
1517     shlibdir
1518 '
1519
1520 CMDLINE_SET="
1521     $PATHS_LIST
1522     ar
1523     arch
1524     as
1525     assert_level
1526     build_suffix
1527     cc
1528     cpu
1529     cross_prefix
1530     cxx
1531     dep_cc
1532     extra_version
1533     host_cc
1534     host_cflags
1535     host_ld
1536     host_ldflags
1537     host_libs
1538     host_os
1539     install
1540     ld
1541     logfile
1542     malloc_prefix
1543     nm
1544     optflags
1545     pkg_config
1546     progs_suffix
1547     random_seed
1548     samples
1549     strip
1550     sysinclude
1551     sysroot
1552     target_exec
1553     target_os
1554     target_path
1555     toolchain
1556     valgrind
1557     yasmexe
1558 "
1559
1560 CMDLINE_APPEND="
1561     extra_cflags
1562     extra_cxxflags
1563 "
1564
1565 # code dependency declarations
1566
1567 # architecture extensions
1568
1569 armv5te_deps="arm"
1570 armv6_deps="arm"
1571 armv6t2_deps="arm"
1572 neon_deps="arm"
1573 vfp_deps="arm"
1574 vfpv3_deps="vfp"
1575
1576 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1577
1578 mipsfpu_deps="mips"
1579 mips32r2_deps="mips"
1580 mipsdspr1_deps="mips"
1581 mipsdspr2_deps="mips"
1582
1583 altivec_deps="ppc"
1584 ppc4xx_deps="ppc"
1585
1586 vis_deps="sparc"
1587
1588 x86_64_suggest="cmov fast_cmov"
1589
1590 amd3dnow_deps="mmx"
1591 amd3dnowext_deps="amd3dnow"
1592 mmx_deps="x86"
1593 mmxext_deps="mmx"
1594 sse_deps="mmxext"
1595 sse2_deps="sse"
1596 sse3_deps="sse2"
1597 ssse3_deps="sse3"
1598 sse4_deps="ssse3"
1599 sse42_deps="sse4"
1600 avx_deps="sse42"
1601 fma4_deps="avx"
1602
1603 mmx_external_deps="yasm"
1604 mmx_inline_deps="inline_asm"
1605 mmx_suggest="mmx_external mmx_inline"
1606
1607 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1608     eval dep=\$${ext}_deps
1609     eval ${ext}_external_deps='"${dep}_external"'
1610     eval ${ext}_inline_deps='"${dep}_inline"'
1611     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1612 done
1613
1614 aligned_stack_if_any="ppc x86"
1615 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1616 fast_clz_if_any="alpha avr32 mips ppc x86"
1617 fast_unaligned_if_any="ppc x86"
1618
1619 inline_asm_deps="!tms470"
1620 need_memalign="altivec neon sse"
1621
1622 symver_if_any="symver_asm_label symver_gnu_asm"
1623
1624 log2_deps="!msvcrt"
1625
1626 # subsystems
1627 dct_select="rdft"
1628 mdct_select="fft"
1629 rdft_select="fft"
1630 mpegaudio_select="mpegaudiodsp"
1631 mpegaudiodsp_select="dct"
1632 mpegvideo_select="videodsp"
1633 mpegvideoenc_select="mpegvideo"
1634
1635 # decoders / encoders
1636 aac_decoder_select="mdct sinewin"
1637 aac_encoder_select="mdct sinewin"
1638 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1639 ac3_decoder_select="mdct ac3dsp ac3_parser"
1640 ac3_encoder_select="mdct ac3dsp"
1641 ac3_fixed_encoder_select="mdct ac3dsp"
1642 alac_encoder_select="lpc"
1643 amrnb_decoder_select="lsp"
1644 amrwb_decoder_select="lsp"
1645 amv_encoder_select="aandcttables"
1646 atrac1_decoder_select="mdct sinewin"
1647 atrac3_decoder_select="mdct"
1648 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1649 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1650 cavs_decoder_select="golomb mpegvideo"
1651 comfortnoise_encoder_select="lpc"
1652 cook_decoder_select="mdct sinewin"
1653 cscd_decoder_select="lzo"
1654 cscd_decoder_suggest="zlib"
1655 dca_decoder_select="mdct"
1656 dirac_decoder_select="dwt golomb videodsp"
1657 dnxhd_encoder_select="aandcttables mpegvideoenc"
1658 dxa_decoder_select="zlib"
1659 eac3_decoder_select="ac3_decoder"
1660 eac3_encoder_select="ac3_encoder"
1661 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1662 eatgq_decoder_select="aandcttables"
1663 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1664 exr_decoder_select="zlib"
1665 ffv1_decoder_select="golomb rangecoder"
1666 ffv1_encoder_select="rangecoder"
1667 ffvhuff_encoder_select="huffman"
1668 flac_decoder_select="golomb"
1669 flac_encoder_select="golomb lpc"
1670 flashsv_decoder_select="zlib"
1671 flashsv_encoder_select="zlib"
1672 flashsv2_encoder_select="zlib"
1673 flashsv2_decoder_select="zlib"
1674 flv_decoder_select="h263_decoder"
1675 flv_encoder_select="h263_encoder"
1676 fraps_decoder_select="huffman"
1677 h261_decoder_select="error_resilience mpegvideo"
1678 h261_encoder_select="aandcttables mpegvideoenc"
1679 h263_decoder_select="error_resilience h263_parser mpegvideo"
1680 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1681 h263i_decoder_select="h263_decoder"
1682 h263p_encoder_select="h263_encoder"
1683 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1684 huffyuv_encoder_select="huffman"
1685 iac_decoder_select="fft mdct sinewin"
1686 imc_decoder_select="fft mdct sinewin"
1687 jpegls_decoder_select="golomb"
1688 jpegls_encoder_select="golomb"
1689 ljpeg_encoder_select="aandcttables mpegvideoenc"
1690 loco_decoder_select="golomb"
1691 mdec_decoder_select="error_resilience mpegvideo"
1692 mjpeg_encoder_select="aandcttables mpegvideoenc"
1693 mlp_decoder_select="mlp_parser"
1694 mp1_decoder_select="mpegaudio"
1695 mp1float_decoder_select="mpegaudio"
1696 mp2_decoder_select="mpegaudio"
1697 mp2float_decoder_select="mpegaudio"
1698 mp3_decoder_select="mpegaudio"
1699 mp3adu_decoder_select="mpegaudio"
1700 mp3adufloat_decoder_select="mpegaudio"
1701 mp3float_decoder_select="mpegaudio"
1702 mp3on4_decoder_select="mpegaudio"
1703 mp3on4float_decoder_select="mpegaudio"
1704 mpc7_decoder_select="mpegaudiodsp"
1705 mpc8_decoder_select="mpegaudiodsp"
1706 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1707 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1708 mpeg1video_decoder_select="error_resilience mpegvideo"
1709 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1710 mpeg2video_decoder_select="error_resilience mpegvideo"
1711 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1712 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1713 mpeg4_encoder_select="h263_encoder"
1714 msmpeg4v1_decoder_select="h263_decoder"
1715 msmpeg4v1_encoder_select="h263_encoder"
1716 msmpeg4v2_decoder_select="h263_decoder"
1717 msmpeg4v2_encoder_select="h263_encoder"
1718 msmpeg4v3_decoder_select="h263_decoder"
1719 msmpeg4v3_encoder_select="h263_encoder"
1720 mss2_decoder_select="vc1_decoder"
1721 nellymoser_decoder_select="mdct sinewin"
1722 nellymoser_encoder_select="mdct sinewin"
1723 nuv_decoder_select="lzo"
1724 png_decoder_select="zlib"
1725 png_encoder_select="zlib"
1726 qcelp_decoder_select="lsp"
1727 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1728 ra_144_encoder_select="lpc"
1729 ralf_decoder_select="golomb"
1730 rv10_decoder_select="h263_decoder"
1731 rv10_encoder_select="h263_encoder"
1732 rv20_decoder_select="h263_decoder"
1733 rv20_encoder_select="h263_encoder"
1734 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1735 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1736 shorten_decoder_select="golomb"
1737 sipr_decoder_select="lsp"
1738 snow_decoder_select="dwt rangecoder"
1739 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1740 sonic_decoder_select="golomb"
1741 sonic_encoder_select="golomb"
1742 sonic_ls_encoder_select="golomb"
1743 svq1_decoder_select="error_resilience mpegvideo"
1744 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1745 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1746 svq3_decoder_suggest="zlib"
1747 theora_decoder_select="vp3_decoder"
1748 tiff_decoder_suggest="zlib"
1749 tiff_encoder_suggest="zlib"
1750 truehd_decoder_select="mlp_parser"
1751 tscc_decoder_select="zlib"
1752 twinvq_decoder_select="mdct lsp sinewin"
1753 utvideo_encoder_select="huffman"
1754 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1755 vc1image_decoder_select="vc1_decoder"
1756 vorbis_decoder_select="mdct"
1757 vorbis_encoder_select="mdct"
1758 vp3_decoder_select="vp3dsp videodsp"
1759 vp5_decoder_select="vp3dsp videodsp"
1760 vp6_decoder_select="huffman vp3dsp videodsp"
1761 vp6a_decoder_select="vp6_decoder"
1762 vp6f_decoder_select="vp6_decoder"
1763 vp8_decoder_select="h264pred videodsp"
1764 wmapro_decoder_select="mdct sinewin"
1765 wmav1_decoder_select="mdct sinewin"
1766 wmav1_encoder_select="mdct sinewin"
1767 wmav2_decoder_select="mdct sinewin"
1768 wmav2_encoder_select="mdct sinewin"
1769 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1770 wmv1_decoder_select="h263_decoder"
1771 wmv1_encoder_select="h263_encoder"
1772 wmv2_decoder_select="h263_decoder"
1773 wmv2_encoder_select="h263_encoder"
1774 wmv3_decoder_select="vc1_decoder"
1775 wmv3image_decoder_select="wmv3_decoder"
1776 zerocodec_decoder_select="zlib"
1777 zlib_decoder_select="zlib"
1778 zlib_encoder_select="zlib"
1779 zmbv_decoder_select="zlib"
1780 zmbv_encoder_select="zlib"
1781
1782 # hardware accelerators
1783 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1784 vaapi_deps="va_va_h"
1785 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1786 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1787
1788 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1789 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1790 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1791 h264_dxva2_hwaccel_deps="dxva2api_h"
1792 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1793 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1794 h264_vda_decoder_select="vda h264_parser h264_decoder"
1795 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1796 h264_vda_hwaccel_select="vda h264_decoder"
1797 h264_vdpau_decoder_select="vdpau h264_decoder"
1798 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1799 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1800 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1801 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1802 mpeg2_crystalhd_decoder_select="crystalhd"
1803 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1804 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1805 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1806 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1807 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1808 mpeg4_crystalhd_decoder_select="crystalhd"
1809 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1810 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1811 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1812 msmpeg4_crystalhd_decoder_select="crystalhd"
1813 vc1_crystalhd_decoder_select="crystalhd"
1814 vc1_dxva2_hwaccel_deps="dxva2api_h"
1815 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1816 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1817 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1818 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1819 wmv3_crystalhd_decoder_select="crystalhd"
1820 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1821 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1822 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1823 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1824
1825 # parsers
1826 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1827 mpeg4video_parser_select="error_resilience mpegvideo"
1828 mpegvideo_parser_select="error_resilience mpegvideo"
1829 vc1_parser_select="error_resilience mpegvideo"
1830
1831 # external libraries
1832 libaacplus_encoder_deps="libaacplus"
1833 libcelt_decoder_deps="libcelt"
1834 libfaac_encoder_deps="libfaac"
1835 libfdk_aac_encoder_deps="libfdk_aac"
1836 libgsm_decoder_deps="libgsm"
1837 libgsm_encoder_deps="libgsm"
1838 libgsm_ms_decoder_deps="libgsm"
1839 libgsm_ms_encoder_deps="libgsm"
1840 libilbc_decoder_deps="libilbc"
1841 libilbc_encoder_deps="libilbc"
1842 libmodplug_demuxer_deps="libmodplug"
1843 libmp3lame_encoder_deps="libmp3lame"
1844 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1845 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1846 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1847 libopenjpeg_decoder_deps="libopenjpeg"
1848 libopenjpeg_encoder_deps="libopenjpeg"
1849 libopus_decoder_deps="libopus"
1850 libopus_encoder_deps="libopus"
1851 libschroedinger_decoder_deps="libschroedinger"
1852 libschroedinger_encoder_deps="libschroedinger"
1853 libspeex_decoder_deps="libspeex"
1854 libspeex_encoder_deps="libspeex"
1855 libstagefright_h264_decoder_deps="libstagefright_h264"
1856 libtheora_encoder_deps="libtheora"
1857 libtwolame_encoder_deps="libtwolame"
1858 libvo_aacenc_encoder_deps="libvo_aacenc"
1859 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1860 libvorbis_decoder_deps="libvorbis"
1861 libvorbis_encoder_deps="libvorbis"
1862 libvpx_vp8_decoder_deps="libvpx"
1863 libvpx_vp8_encoder_deps="libvpx"
1864 libvpx_vp9_decoder_deps="libvpx"
1865 libvpx_vp9_encoder_deps="libvpx"
1866 libx264_encoder_deps="libx264"
1867 libx264rgb_encoder_deps="libx264"
1868 libxavs_encoder_deps="libxavs"
1869 libxvid_encoder_deps="libxvid"
1870 libutvideo_decoder_deps="libutvideo"
1871 libutvideo_encoder_deps="libutvideo"
1872
1873 # demuxers / muxers
1874 ac3_demuxer_select="ac3_parser"
1875 asf_stream_muxer_select="asf_muxer"
1876 avisynth_demuxer_deps="avisynth"
1877 dirac_demuxer_select="dirac_parser"
1878 dts_demuxer_select="dca_parser"
1879 dtshd_demuxer_select="dca_parser"
1880 eac3_demuxer_select="ac3_parser"
1881 f4v_muxer_select="mov_muxer"
1882 flac_demuxer_select="flac_parser"
1883 ipod_muxer_select="mov_muxer"
1884 ismv_muxer_select="mov_muxer"
1885 libnut_demuxer_deps="libnut"
1886 libnut_muxer_deps="libnut"
1887 matroska_audio_muxer_select="matroska_muxer"
1888 matroska_demuxer_suggest="bzlib lzo zlib"
1889 mov_demuxer_suggest="zlib"
1890 mov_muxer_select="rtpenc_chain"
1891 mp3_demuxer_select="mpegaudio_parser"
1892 mp4_muxer_select="mov_muxer"
1893 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1894 mpegtsraw_demuxer_select="mpegts_demuxer"
1895 mxf_d10_muxer_select="mxf_muxer"
1896 ogg_demuxer_select="golomb"
1897 psp_muxer_select="mov_muxer"
1898 rtp_demuxer_select="sdp_demuxer"
1899 rtp_muxer_select="mpegvideo"
1900 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1901 rtsp_demuxer_select="http_protocol rtpdec"
1902 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1903 sap_demuxer_select="sdp_demuxer"
1904 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1905 sdp_demuxer_select="rtpdec"
1906 smoothstreaming_muxer_select="ismv_muxer"
1907 spdif_muxer_select="aac_parser"
1908 tak_demuxer_select="tak_parser"
1909 tg2_muxer_select="mov_muxer"
1910 tgp_muxer_select="mov_muxer"
1911 vobsub_demuxer_select="mpegps_demuxer"
1912 w64_demuxer_deps="wav_demuxer"
1913 w64_muxer_deps="wav_muxer"
1914
1915 # indevs / outdevs
1916 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1917 alsa_outdev_deps="alsa_asoundlib_h"
1918 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1919 caca_outdev_deps="libcaca"
1920 dshow_indev_deps="IBaseFilter"
1921 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1922 dv1394_indev_deps="dv1394 dv_demuxer"
1923 fbdev_indev_deps="linux_fb_h"
1924 iec61883_indev_deps="libiec61883"
1925 jack_indev_deps="jack_jack_h sem_timedwait"
1926 lavfi_indev_deps="avfilter"
1927 libcdio_indev_deps="libcdio"
1928 libdc1394_indev_deps="libdc1394"
1929 libv4l2_indev_deps="libv4l2"
1930 openal_indev_deps="openal"
1931 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1932 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1933 pulse_indev_deps="libpulse"
1934 sdl_outdev_deps="sdl"
1935 sndio_indev_deps="sndio_h"
1936 sndio_outdev_deps="sndio_h"
1937 v4l_indev_deps="linux_videodev_h"
1938 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1939 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1940 vfwcap_indev_extralibs="-lavicap32"
1941 x11grab_indev_deps="x11grab"
1942
1943 # protocols
1944 bluray_protocol_deps="libbluray"
1945 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1946 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1947 ffrtmpcrypt_protocol_select="tcp_protocol"
1948 ffrtmphttp_protocol_deps="!librtmp_protocol"
1949 ffrtmphttp_protocol_select="http_protocol"
1950 gopher_protocol_select="network"
1951 httpproxy_protocol_select="tcp_protocol"
1952 http_protocol_select="tcp_protocol"
1953 https_protocol_select="tls_protocol"
1954 librtmp_protocol_deps="librtmp"
1955 librtmpe_protocol_deps="librtmp"
1956 librtmps_protocol_deps="librtmp"
1957 librtmpt_protocol_deps="librtmp"
1958 librtmpte_protocol_deps="librtmp"
1959 mmsh_protocol_select="http_protocol"
1960 mmst_protocol_select="network"
1961 rtmp_protocol_deps="!librtmp_protocol"
1962 rtmp_protocol_select="tcp_protocol"
1963 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1964 rtmps_protocol_deps="!librtmp_protocol"
1965 rtmps_protocol_select="tls_protocol"
1966 rtmpt_protocol_select="ffrtmphttp_protocol"
1967 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1968 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1969 rtp_protocol_select="udp_protocol"
1970 sctp_protocol_deps="struct_sctp_event_subscribe"
1971 sctp_protocol_select="network"
1972 srtp_protocol_select="rtp_protocol"
1973 tcp_protocol_select="network"
1974 tls_protocol_deps_any="openssl gnutls"
1975 tls_protocol_select="tcp_protocol"
1976 udp_protocol_select="network"
1977
1978 # filters
1979 aconvert_filter_deps="swresample"
1980 amovie_filter_deps="avcodec avformat"
1981 aresample_filter_deps="swresample"
1982 ass_filter_deps="libass"
1983 asyncts_filter_deps="avresample"
1984 atempo_filter_deps="avcodec rdft"
1985 blackframe_filter_deps="gpl"
1986 boxblur_filter_deps="gpl"
1987 colormatrix_filter_deps="gpl"
1988 cropdetect_filter_deps="gpl"
1989 decimate_filter_deps="gpl avcodec"
1990 delogo_filter_deps="gpl"
1991 deshake_filter_deps="avcodec"
1992 drawtext_filter_deps="libfreetype"
1993 ebur128_filter_deps="gpl"
1994 flite_filter_deps="libflite"
1995 frei0r_filter_deps="frei0r dlopen"
1996 frei0r_filter_extralibs='$ldl'
1997 frei0r_src_filter_deps="frei0r dlopen"
1998 frei0r_src_filter_extralibs='$ldl'
1999 geq_filter_deps="gpl"
2000 histeq_filter_deps="gpl"
2001 hqdn3d_filter_deps="gpl"
2002 hue_filter_deps="gpl"
2003 kerndeint_filter_deps="gpl"
2004 movie_filter_deps="avcodec avformat"
2005 mp_filter_deps="gpl avcodec swscale inline_asm"
2006 mptestsrc_filter_deps="gpl"
2007 negate_filter_deps="lut_filter"
2008 resample_filter_deps="avresample"
2009 ocv_filter_deps="libopencv"
2010 pan_filter_deps="swresample"
2011 pp_filter_deps="gpl postproc"
2012 removelogo_filter_deps="avcodec avformat swscale"
2013 scale_filter_deps="swscale"
2014 smartblur_filter_deps="gpl swscale"
2015 showspectrum_filter_deps="avcodec rdft"
2016 subtitles_filter_deps="avformat avcodec libass"
2017 super2xsai_filter_deps="gpl"
2018 tinterlace_filter_deps="gpl"
2019 yadif_filter_deps="gpl"
2020 pixfmts_super2xsai_test_deps="super2xsai_filter"
2021 tinterlace_merge_test_deps="tinterlace_filter"
2022 tinterlace_pad_test_deps="tinterlace_filter"
2023
2024 # libraries
2025 avcodec_deps="avutil"
2026 avdevice_deps="avutil avcodec avformat"
2027 avfilter_deps="avutil"
2028 avformat_deps="avutil avcodec"
2029 avresample_deps="avutil"
2030 postproc_deps="avutil gpl"
2031 swscale_deps="avutil"
2032
2033 # programs
2034 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2035 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2036                setpts_filter null_filter anull_filter ffabuffersink_filter"
2037 ffplay_deps="avcodec avformat swscale swresample sdl"
2038 ffplay_select="ffbuffersink_filter rdft crop_filter"
2039 ffprobe_deps="avcodec avformat"
2040 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2041 ffserver_extralibs='$ldl'
2042
2043 # documentation
2044 podpages_deps="perl"
2045 manpages_deps="perl pod2man"
2046 htmlpages_deps="texi2html"
2047 txtpages_deps="makeinfo"
2048 doc_deps_any="manpages htmlpages podpages txtpages"
2049
2050 # default parameters
2051
2052 logfile="config.log"
2053
2054 # installation paths
2055 prefix_default="/usr/local"
2056 bindir_default='${prefix}/bin'
2057 datadir_default='${prefix}/share/ffmpeg'
2058 incdir_default='${prefix}/include'
2059 libdir_default='${prefix}/lib'
2060 mandir_default='${prefix}/share/man'
2061 shlibdir_default="$libdir_default"
2062
2063 # toolchain
2064 ar_default="ar"
2065 cc_default="gcc"
2066 cxx_default="g++"
2067 host_cc_default="gcc"
2068 cp_f="cp -f"
2069 install="install"
2070 ln_s="ln -sf"
2071 nm_default="nm -g"
2072 objformat="elf"
2073 pkg_config_default=pkg-config
2074 ranlib="ranlib"
2075 strip_default="strip"
2076 yasmexe_default="yasm"
2077
2078 nogas=":"
2079
2080 # machine
2081 arch_default=$(uname -m)
2082 cpu="generic"
2083
2084 # OS
2085 target_os_default=$(tolower $(uname -s))
2086 host_os=$target_os_default
2087
2088 # configurable options
2089 enable $PROGRAM_LIST
2090 enable $DOCUMENT_LIST
2091 enable $(filter_out avresample $LIBRARY_LIST)
2092 enable stripping
2093
2094 enable asm
2095 enable debug
2096 enable doc
2097 enable optimizations
2098 enable runtime_cpudetect
2099 enable safe_bitstream_reader
2100 enable static
2101 enable swscale_alpha
2102
2103 # build settings
2104 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2105 FFSERVERLDFLAGS=-Wl,-E
2106 LIBPREF="lib"
2107 LIBSUF=".a"
2108 FULLNAME='$(NAME)$(BUILDSUF)'
2109 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2110 SLIBPREF="lib"
2111 SLIBSUF=".so"
2112 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2113 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2114 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2115 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2116 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2117 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2118
2119 asflags_filter=echo
2120 cflags_filter=echo
2121 ldflags_filter=echo
2122
2123 AS_C='-c'
2124 AS_O='-o $@'
2125 CC_C='-c'
2126 CC_E='-E -o $@'
2127 CC_O='-o $@'
2128 CXX_C='-c'
2129 CXX_O='-o $@'
2130 LD_O='-o $@'
2131 LD_LIB='-l%'
2132 LD_PATH='-L'
2133 HOSTCC_C='-c'
2134 HOSTCC_O='-o $@'
2135 HOSTLD_O='-o $@'
2136
2137 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2138 host_libs='-lm'
2139 host_cflags_filter=echo
2140 host_ldflags_filter=echo
2141
2142 target_path='$(CURDIR)'
2143
2144 # since the object filename is not given with the -MM flag, the compiler
2145 # is only able to print the basename, and we must add the path ourselves
2146 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2147 DEPFLAGS='-MM'
2148
2149 # find source path
2150 if test -f configure; then
2151     source_path=.
2152 else
2153     source_path=$(cd $(dirname "$0"); pwd)
2154     echo "$source_path" | grep -q '[[:blank:]]' &&
2155         die "Out of tree builds are impossible with whitespace in source path."
2156     test -e "$source_path/config.h" &&
2157         die "Out of tree builds are impossible with config.h in source dir."
2158 fi
2159
2160 for v in "$@"; do
2161     r=${v#*=}
2162     l=${v%"$r"}
2163     r=$(sh_quote "$r")
2164     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2165 done
2166
2167 find_things(){
2168     thing=$1
2169     pattern=$2
2170     file=$source_path/$3
2171     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2172 }
2173
2174 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2175 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2176 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2177 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2178 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2179 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2180 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2181 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2182 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2183 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2184 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2185
2186 ALL_COMPONENTS="
2187     $BSF_LIST
2188     $DECODER_LIST
2189     $DEMUXER_LIST
2190     $ENCODER_LIST
2191     $FILTER_LIST
2192     $HWACCEL_LIST
2193     $INDEV_LIST
2194     $MUXER_LIST
2195     $OUTDEV_LIST
2196     $PARSER_LIST
2197     $PROTOCOL_LIST
2198 "
2199
2200 for n in $COMPONENT_LIST; do
2201     v=$(toupper ${n%s})_LIST
2202     eval enable \$$v
2203     eval ${n}_if_any="\$$v"
2204 done
2205
2206 enable $ARCH_EXT_LIST
2207
2208 die_unknown(){
2209     echo "Unknown option \"$1\"."
2210     echo "See $0 --help for available options."
2211     exit 1
2212 }
2213
2214 show_list() {
2215     suffix=_$1
2216     shift
2217     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2218     exit 0
2219 }
2220
2221 rand_list(){
2222     IFS=', '
2223     set -- $*
2224     unset IFS
2225     for thing; do
2226         comp=${thing%:*}
2227         prob=${thing#$comp}
2228         prob=${prob#:}
2229         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2230         echo "prob ${prob:-0.5}"
2231         printf '%s\n' $comp
2232     done
2233 }
2234
2235 do_random(){
2236     action=$1
2237     shift
2238     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2239     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2240 }
2241
2242 for opt do
2243     optval="${opt#*=}"
2244     case "$opt" in
2245         --extra-ldflags=*)
2246             add_ldflags $optval
2247         ;;
2248         --extra-libs=*)
2249             add_extralibs $optval
2250         ;;
2251         --disable-devices)
2252             disable $INDEV_LIST $OUTDEV_LIST
2253         ;;
2254         --enable-debug=*)
2255             debuglevel="$optval"
2256         ;;
2257         --disable-programs)
2258             disable $PROGRAM_LIST
2259         ;;
2260         --disable-everything)
2261             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2262         ;;
2263         --disable-all)
2264             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2265             disable $LIBRARY_LIST $PROGRAM_LIST doc
2266         ;;
2267         --enable-random|--disable-random)
2268             action=${opt%%-random}
2269             do_random ${action#--} $COMPONENT_LIST
2270         ;;
2271         --enable-random=*|--disable-random=*)
2272             action=${opt%%-random=*}
2273             do_random ${action#--} $optval
2274         ;;
2275         --enable-*=*|--disable-*=*)
2276             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2277             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2278             eval list=\$$(toupper $thing)_LIST
2279             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2280             list=$(filter "$name" $list)
2281             [ "$list" = "" ] && warn "Option $opt did not match anything"
2282             $action $list
2283         ;;
2284         --enable-?*|--disable-?*)
2285             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2286             if is_in $option $COMPONENT_LIST; then
2287                 test $action = disable && action=unset
2288                 eval $action \$$(toupper ${option%s})_LIST
2289             elif is_in $option $CMDLINE_SELECT; then
2290                 $action $option
2291             else
2292                 die_unknown $opt
2293             fi
2294         ;;
2295         --list-*)
2296             NAME="${opt#--list-}"
2297             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2298             NAME=${NAME%s}
2299             eval show_list $NAME \$$(toupper $NAME)_LIST
2300         ;;
2301         --help|-h) show_help
2302         ;;
2303         --fatal-warnings) enable fatal_warnings
2304         ;;
2305         *)
2306             optname="${opt%%=*}"
2307             optname="${optname#--}"
2308             optname=$(echo "$optname" | sed 's/-/_/g')
2309             if is_in $optname $CMDLINE_SET; then
2310                 eval $optname='$optval'
2311             elif is_in $optname $CMDLINE_APPEND; then
2312                 append $optname "$optval"
2313             else
2314                 die_unknown $opt
2315             fi
2316         ;;
2317     esac
2318 done
2319
2320 disabled logging && logfile=/dev/null
2321
2322 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2323 set >> $logfile
2324
2325 test -n "$cross_prefix" && enable cross_compile
2326
2327 if enabled cross_compile; then
2328     test -n "$arch" && test -n "$target_os" ||
2329         die "Must specify target arch and OS when cross-compiling"
2330 fi
2331
2332 ar_default="${cross_prefix}${ar_default}"
2333 cc_default="${cross_prefix}${cc_default}"
2334 cxx_default="${cross_prefix}${cxx_default}"
2335 nm_default="${cross_prefix}${nm_default}"
2336 pkg_config_default="${cross_prefix}${pkg_config_default}"
2337 ranlib="${cross_prefix}${ranlib}"
2338 strip_default="${cross_prefix}${strip_default}"
2339
2340 sysinclude_default="${sysroot}/usr/include"
2341
2342 case "$toolchain" in
2343     clang-asan)
2344         cc_default="clang"
2345         add_cflags  -faddress-sanitizer
2346         add_ldflags -faddress-sanitizer
2347     ;;
2348     clang-tsan)
2349         cc_default="clang"
2350         add_cflags  -fthread-sanitizer
2351         add_ldflags -fthread-sanitizer
2352     ;;
2353     msvc)
2354         cc_default="c99wrap cl"
2355         ld_default="c99wrap link"
2356         nm_default="dumpbin -symbols"
2357         ar_default="lib"
2358         target_os_default="win32"
2359     ;;
2360     ?*)
2361         die "Unknown toolchain $toolchain"
2362     ;;
2363 esac
2364
2365 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2366 enabled cross_compile || host_cc_default=$cc
2367 set_default host_cc
2368
2369 if ! $pkg_config --version >/dev/null 2>&1; then
2370     warn "$pkg_config not found, library detection may fail."
2371     pkg_config=false
2372 fi
2373
2374 exesuf() {
2375     case $1 in
2376         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2377     esac
2378 }
2379
2380 EXESUF=$(exesuf $target_os)
2381 HOSTEXESUF=$(exesuf $host_os)
2382
2383 # set temporary file name
2384 : ${TMPDIR:=$TEMPDIR}
2385 : ${TMPDIR:=$TMP}
2386 : ${TMPDIR:=/tmp}
2387
2388 if ! check_cmd mktemp -u XXXXXX; then
2389     # simple replacement for missing mktemp
2390     # NOT SAFE FOR GENERAL USE
2391     mktemp(){
2392         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2393     }
2394 fi
2395
2396 tmpfile(){
2397     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2398         (set -C; exec > $tmp) 2>/dev/null ||
2399         die "Unable to create temporary file in $TMPDIR."
2400     append TMPFILES $tmp
2401     eval $1=$tmp
2402 }
2403
2404 trap 'rm -f -- $TMPFILES' EXIT
2405
2406 tmpfile TMPASM .asm
2407 tmpfile TMPC   .c
2408 tmpfile TMPCPP .cpp
2409 tmpfile TMPE   $EXESUF
2410 tmpfile TMPH   .h
2411 tmpfile TMPO   .o
2412 tmpfile TMPS   .S
2413 tmpfile TMPSH  .sh
2414 tmpfile TMPV   .ver
2415
2416 unset -f mktemp
2417
2418 chmod +x $TMPE
2419
2420 # make sure we can execute files in $TMPDIR
2421 cat > $TMPSH 2>> $logfile <<EOF
2422 #! /bin/sh
2423 EOF
2424 chmod +x $TMPSH >> $logfile 2>&1
2425 if ! $TMPSH >> $logfile 2>&1; then
2426     cat <<EOF
2427 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2428 variable to another directory and make sure that it is not mounted noexec.
2429 EOF
2430     die "Sanity test failed."
2431 fi
2432
2433 ccc_flags(){
2434     for flag; do
2435         case $flag in
2436             -std=c99)           echo -c99                       ;;
2437             -mcpu=*)            echo -arch ${flag#*=}           ;;
2438             -mieee)             echo -ieee                      ;;
2439             -O*|-fast)          echo $flag                      ;;
2440             -fno-math-errno)    echo -assume nomath_errno       ;;
2441             -g)                 echo -g3                        ;;
2442             -Wall)              echo -msg_enable level2         ;;
2443             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2444             -Wl,*)              echo $flag                      ;;
2445             -f*|-W*)                                            ;;
2446             *)                  echo $flag                      ;;
2447         esac
2448    done
2449 }
2450
2451 msvc_flags(){
2452     for flag; do
2453         case $flag in
2454             -fomit-frame-pointer) echo -Oy ;;
2455             -g)                   echo -Z7 ;;
2456             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2457                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2458                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2459                                        -wd4554 \
2460                                        -wd4996 -wd4273 ;;
2461             -std=c99)             ;;
2462             -fno-math-errno)      ;;
2463             -fno-common)          ;;
2464             -fno-signed-zeros)    ;;
2465             -fPIC)                ;;
2466             -lz)                  echo zlib.lib ;;
2467             -lavifil32)           echo vfw32.lib ;;
2468             -lavicap32)           echo vfw32.lib user32.lib ;;
2469             -l*)                  echo ${flag#-l}.lib ;;
2470             *)                    echo $flag ;;
2471         esac
2472     done
2473 }
2474
2475 pgi_flags(){
2476     for flag; do
2477         case $flag in
2478             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2479             -fomit-frame-pointer) echo -Mnoframe ;;
2480             -g)                   echo -gopt ;;
2481             *)                    echo $flag ;;
2482         esac
2483     done
2484 }
2485
2486 suncc_flags(){
2487     for flag; do
2488         case $flag in
2489             -march=*|-mcpu=*)
2490                 case "${flag#*=}" in
2491                     native)                   echo -xtarget=native       ;;
2492                     v9|niagara)               echo -xarch=sparc          ;;
2493                     ultrasparc)               echo -xarch=sparcvis       ;;
2494                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2495                     i586|pentium)             echo -xchip=pentium        ;;
2496                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2497                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2498                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2499                     pentium4*)          echo -xtarget=pentium4           ;;
2500                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2501                     *-sse3)             echo -xarch=sse3                 ;;
2502                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2503                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2504                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2505                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2506                     bdver*)                   echo -xarch=avx            ;;
2507                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2508                     k8|opteron|athlon64|athlon-fx)
2509                                               echo -xarch=sse2a          ;;
2510                     athlon*)                  echo -xarch=pentium_proa   ;;
2511                 esac
2512                 ;;
2513             -std=c99)             echo -xc99              ;;
2514             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2515             -fPIC)                echo -KPIC -xcode=pic32 ;;
2516             -W*,*)                echo $flag              ;;
2517             -f*-*|-W*|-mimpure-text)                      ;;
2518             -shared)              echo -G                 ;;
2519             *)                    echo $flag              ;;
2520         esac
2521     done
2522 }
2523
2524 tms470_flags(){
2525     for flag; do
2526         case $flag in
2527             -march=*|-mcpu=*)
2528                 case "${flag#*=}" in
2529                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2530                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2531                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2532                     armv6*|arm11*)          echo -mv=6   ;;
2533                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2534                                             echo -mv=5e  ;;
2535                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2536                 esac
2537                 ;;
2538             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2539             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2540             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2541             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2542             -msoft-float)   echo --float_support=vfplib       ;;
2543             -O[0-3]|-mf=*)  echo $flag                        ;;
2544             -g)             echo -g -mn                       ;;
2545             -pds=*)         echo $flag                        ;;
2546             -D*|-I*)        echo $flag                        ;;
2547             --gcc|--abi=*)  echo $flag                        ;;
2548             -me)            echo $flag                        ;;
2549         esac
2550     done
2551 }
2552
2553 probe_cc(){
2554     pfx=$1
2555     _cc=$2
2556
2557     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2558     unset _ld_o _ldflags _ld_lib _ld_path
2559     unset _depflags _DEPCMD _DEPFLAGS
2560     _flags_filter=echo
2561
2562     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2563         _type=llvm_gcc
2564         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2565         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2566         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2567         _cflags_speed='-O3'
2568         _cflags_size='-Os'
2569     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2570         _type=gcc
2571         gcc_version=$($_cc --version | head -n1)
2572         gcc_basever=$($_cc -dumpversion)
2573         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2574         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2575         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2576         if ! $_cc -dumpversion | grep -q '^2\.'; then
2577             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2578         fi
2579         _cflags_speed='-O3'
2580         _cflags_size='-Os'
2581     elif $_cc --version 2>/dev/null | grep -q Intel; then
2582         _type=icc
2583         _ident=$($_cc --version | head -n1)
2584         _depflags='-MMD'
2585         _cflags_speed='-O3'
2586         _cflags_size='-Os'
2587         _cflags_noopt='-O1'
2588     elif $_cc -v 2>&1 | grep -q xlc; then
2589         _type=xlc
2590         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2591         _cflags_speed='-O5'
2592         _cflags_size='-O5 -qcompact'
2593     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2594         _type=ccc
2595         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2596         _DEPFLAGS='-M'
2597         _cflags_speed='-fast'
2598         _cflags_size='-O1'
2599         _flags_filter=ccc_flags
2600     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2601         test -d "$sysroot" || die "No valid sysroot specified."
2602         _type=armcc
2603         _ident=$($_cc --vsn | head -n1)
2604         armcc_conf="$PWD/armcc.conf"
2605         $_cc --arm_linux_configure                 \
2606              --arm_linux_config_file="$armcc_conf" \
2607              --configure_sysroot="$sysroot"        \
2608              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2609              die "Error creating armcc configuration file."
2610         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2611         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2612         as_default="${cross_prefix}gcc"
2613         _depflags='-MMD'
2614         _cflags_speed='-O3'
2615         _cflags_size='-Os'
2616     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2617         _type=tms470
2618         _ident=$($_cc -version | head -n1 | tr -s ' ')
2619         _flags='--gcc --abi=eabi -me'
2620         _cc_e='-ppl -fe=$@'
2621         _cc_o='-fe=$@'
2622         _depflags='-ppa -ppd=$(@:.o=.d)'
2623         _cflags_speed='-O3 -mf=5'
2624         _cflags_size='-O3 -mf=2'
2625         _flags_filter=tms470_flags
2626     elif $_cc -v 2>&1 | grep -q clang; then
2627         _type=clang
2628         _ident=$($_cc --version | head -n1)
2629         _depflags='-MMD'
2630         _cflags_speed='-O3'
2631         _cflags_size='-Os'
2632     elif $_cc -V 2>&1 | grep -q Sun; then
2633         _type=suncc
2634         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2635         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2636         _DEPFLAGS='-xM1 -xc99'
2637         _ldflags='-std=c99'
2638         _cflags_speed='-O5'
2639         _cflags_size='-O5 -xspace'
2640         _flags_filter=suncc_flags
2641     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2642         _type=pathscale
2643         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2644         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2645         _cflags_speed='-O2'
2646         _cflags_size='-Os'
2647         _flags_filter='filter_out -Wdisabled-optimization'
2648     elif $_cc -v 2>&1 | grep -q Open64; then
2649         _type=open64
2650         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2651         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2652         _cflags_speed='-O2'
2653         _cflags_size='-Os'
2654         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2655     elif $_cc -V 2>&1 | grep -q Portland; then
2656         _type=pgi
2657         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2658         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2659         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2660         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2661         _cflags_noopt="-O1"
2662         _flags_filter=pgi_flags
2663     elif $_cc 2>&1 | grep -q Microsoft; then
2664         _type=msvc
2665         _ident=$($cc 2>&1 | head -n1)
2666         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2667         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2668         _cflags_speed="-O2"
2669         _cflags_size="-O1"
2670         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2671         if $_cc 2>&1 | grep -q Linker; then
2672             _ld_o='-out $@'
2673         else
2674             _ld_o='-Fe$@'
2675         fi
2676         _cc_o='-Fo $@'
2677         _cc_e='-P -Fi $@'
2678         _flags_filter=msvc_flags
2679         _ld_lib='lib%.a'
2680         _ld_path='-libpath:'
2681         _flags='-nologo'
2682         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2683         if [ $pfx = hostcc ]; then
2684             append _cflags -Dsnprintf=_snprintf
2685         fi
2686         disable stripping
2687     fi
2688
2689     eval ${pfx}_type=\$_type
2690     eval ${pfx}_ident=\$_ident
2691 }
2692
2693 set_ccvars(){
2694     eval ${1}_C=\${_cc_c-\${${1}_C}}
2695     eval ${1}_E=\${_cc_e-\${${1}_E}}
2696     eval ${1}_O=\${_cc_o-\${${1}_O}}
2697
2698     if [ -n "$_depflags" ]; then
2699         eval ${1}_DEPFLAGS=\$_depflags
2700     else
2701         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2702         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2703         eval DEP${1}FLAGS=\$_flags
2704     fi
2705 }
2706
2707 probe_cc cc "$cc"
2708 cflags_filter=$_flags_filter
2709 cflags_speed=$_cflags_speed
2710 cflags_size=$_cflags_size
2711 cflags_noopt=$_cflags_noopt
2712 add_cflags $_flags $_cflags
2713 cc_ldflags=$_ldflags
2714 set_ccvars CC
2715
2716 probe_cc hostcc "$host_cc"
2717 host_cflags_filter=$_flags_filter
2718 add_host_cflags  $_flags $_cflags
2719 set_ccvars HOSTCC
2720
2721 test -n "$cc_type" && enable $cc_type ||
2722     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2723
2724 : ${as_default:=$cc}
2725 : ${dep_cc_default:=$cc}
2726 : ${ld_default:=$cc}
2727 : ${host_ld_default:=$host_cc}
2728 set_default ar as dep_cc ld host_ld
2729
2730 probe_cc as "$as"
2731 asflags_filter=$_flags_filter
2732 add_asflags $_flags $_cflags
2733 set_ccvars AS
2734
2735 probe_cc ld "$ld"
2736 ldflags_filter=$_flags_filter
2737 add_ldflags $_flags $_ldflags
2738 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2739 LD_O=${_ld_o-$LD_O}
2740 LD_LIB=${_ld_lib-$LD_LIB}
2741 LD_PATH=${_ld_path-$LD_PATH}
2742
2743 probe_cc hostld "$host_ld"
2744 host_ldflags_filter=$_flags_filter
2745 add_host_ldflags $_flags $_ldflags
2746 HOSTLD_O=${_ld_o-$HOSTLD_O}
2747
2748 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2749     probe_cc depcc "$dep_cc"
2750     CCDEP=${_DEPCMD:-$DEPCMD}
2751     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2752     DEPCCFLAGS=$_flags
2753 fi
2754
2755 if $ar 2>&1 | grep -q Microsoft; then
2756     arflags="-nologo"
2757     ar_o='-out:$@'
2758 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2759     arflags="rq"
2760     ar_o='$@'
2761 else
2762     arflags="rc"
2763     ar_o='$@'
2764 fi
2765
2766 add_cflags $extra_cflags
2767 add_cxxflags $extra_cxxflags
2768 add_asflags $extra_cflags
2769
2770 if test -n "$sysroot"; then
2771     case "$cc_type" in
2772         gcc|llvm_gcc|clang)
2773             add_cppflags --sysroot="$sysroot"
2774             add_ldflags --sysroot="$sysroot"
2775         ;;
2776         tms470)
2777             add_cppflags -I"$sysinclude"
2778             add_ldflags  --sysroot="$sysroot"
2779         ;;
2780     esac
2781 fi
2782
2783 if test "$cpu" = host; then
2784     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2785
2786     case "$cc_type" in
2787         gcc|llvm_gcc)
2788             check_native(){
2789                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2790                 sed -n "/cc1.*$1=/{
2791                             s/.*$1=\\([^ ]*\\).*/\\1/
2792                             p
2793                             q
2794                         }" $TMPE
2795             }
2796             cpu=$(check_native -march || check_native -mcpu)
2797         ;;
2798     esac
2799
2800     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2801 fi
2802
2803 # Deal with common $arch aliases
2804 case "$arch" in
2805     aarch64|arm64)
2806         arch="aarch64"
2807     ;;
2808     arm*|iPad*)
2809         arch="arm"
2810     ;;
2811     mips*|IP*)
2812         arch="mips"
2813     ;;
2814     parisc*|hppa*)
2815         arch="parisc"
2816     ;;
2817     "Power Macintosh"|ppc*|powerpc*)
2818         arch="ppc"
2819     ;;
2820     s390|s390x)
2821         arch="s390"
2822     ;;
2823     sh4|sh)
2824         arch="sh4"
2825     ;;
2826     sun4u|sparc*)
2827         arch="sparc"
2828     ;;
2829     tilegx|tile-gx)
2830         arch="tilegx"
2831     ;;
2832     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2833         arch="x86"
2834     ;;
2835 esac
2836
2837 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2838 enable $arch
2839
2840 # Add processor-specific flags
2841 if enabled aarch64; then
2842
2843     case $cpu in
2844         armv*)
2845             cpuflags="-march=$cpu"
2846         ;;
2847         *)
2848             cpuflags="-mcpu=$cpu"
2849         ;;
2850     esac
2851
2852 elif enabled alpha; then
2853
2854     cpuflags="-mcpu=$cpu"
2855
2856 elif enabled arm; then
2857
2858     check_arm_arch() {
2859         check_cpp_condition stddef.h \
2860             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2861             $cpuflags
2862     }
2863
2864     probe_arm_arch() {
2865         if   check_arm_arch 4;        then echo armv4;
2866         elif check_arm_arch 4T;       then echo armv4t;
2867         elif check_arm_arch 5;        then echo armv5;
2868         elif check_arm_arch 5E;       then echo armv5e;
2869         elif check_arm_arch 5T;       then echo armv5t;
2870         elif check_arm_arch 5TE;      then echo armv5te;
2871         elif check_arm_arch 5TEJ;     then echo armv5te;
2872         elif check_arm_arch 6;        then echo armv6;
2873         elif check_arm_arch 6J;       then echo armv6j;
2874         elif check_arm_arch 6K;       then echo armv6k;
2875         elif check_arm_arch 6Z;       then echo armv6z;
2876         elif check_arm_arch 6ZK;      then echo armv6zk;
2877         elif check_arm_arch 6T2;      then echo armv6t2;
2878         elif check_arm_arch 7;        then echo armv7;
2879         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2880         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2881         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2882         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2883         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2884         fi
2885     }
2886
2887     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2888
2889     case $cpu in
2890         armv*)
2891             cpuflags="-march=$cpu"
2892             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2893         ;;
2894         *)
2895             cpuflags="-mcpu=$cpu"
2896             case $cpu in
2897                 cortex-a*)                               subarch=armv7a  ;;
2898                 cortex-r*)                               subarch=armv7r  ;;
2899                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2900                 arm11*)                                  subarch=armv6   ;;
2901                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2902                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2903                 *)                             subarch=$(probe_arm_arch) ;;
2904             esac
2905         ;;
2906     esac
2907
2908     case "$subarch" in
2909         armv5t*)    enable fast_clz                ;;
2910         armv[6-8]*) enable fast_clz fast_unaligned ;;
2911     esac
2912
2913 elif enabled avr32; then
2914
2915     case $cpu in
2916         ap7[02]0[0-2])
2917             subarch="avr32_ap"
2918             cpuflags="-mpart=$cpu"
2919         ;;
2920         ap)
2921             subarch="avr32_ap"
2922             cpuflags="-march=$cpu"
2923         ;;
2924         uc3[ab]*)
2925             subarch="avr32_uc"
2926             cpuflags="-mcpu=$cpu"
2927         ;;
2928         uc)
2929             subarch="avr32_uc"
2930             cpuflags="-march=$cpu"
2931         ;;
2932     esac
2933
2934 elif enabled bfin; then
2935
2936     cpuflags="-mcpu=$cpu"
2937
2938 elif enabled mips; then
2939
2940     cpuflags="-march=$cpu"
2941
2942     case $cpu in
2943         24kc)
2944             disable mipsfpu
2945             disable mipsdspr1
2946             disable mipsdspr2
2947         ;;
2948         24kf*)
2949             disable mipsdspr1
2950             disable mipsdspr2
2951         ;;
2952         24kec|34kc|1004kc)
2953             disable mipsfpu
2954             disable mipsdspr2
2955         ;;
2956         24kef*|34kf*|1004kf*)
2957             disable mipsdspr2
2958         ;;
2959         74kc)
2960             disable mipsfpu
2961         ;;
2962     esac
2963
2964 elif enabled ppc; then
2965
2966     case $(tolower $cpu) in
2967         601|ppc601|powerpc601)
2968             cpuflags="-mcpu=601"
2969             disable altivec
2970         ;;
2971         603*|ppc603*|powerpc603*)
2972             cpuflags="-mcpu=603"
2973             disable altivec
2974         ;;
2975         604*|ppc604*|powerpc604*)
2976             cpuflags="-mcpu=604"
2977             disable altivec
2978         ;;
2979         g3|75*|ppc75*|powerpc75*)
2980             cpuflags="-mcpu=750"
2981             disable altivec
2982         ;;
2983         g4|745*|ppc745*|powerpc745*)
2984             cpuflags="-mcpu=7450"
2985         ;;
2986         74*|ppc74*|powerpc74*)
2987             cpuflags="-mcpu=7400"
2988         ;;
2989         g5|970|ppc970|powerpc970)
2990             cpuflags="-mcpu=970"
2991         ;;
2992         power[3-7]*)
2993             cpuflags="-mcpu=$cpu"
2994         ;;
2995         cell)
2996             cpuflags="-mcpu=cell"
2997             enable ldbrx
2998         ;;
2999         e500mc)
3000             cpuflags="-mcpu=e500mc"
3001             disable altivec
3002         ;;
3003         e500v2)
3004             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3005             disable altivec
3006         ;;
3007         e500)
3008             cpuflags="-mcpu=8540 -mhard-float"
3009             disable altivec
3010         ;;
3011     esac
3012
3013 elif enabled sparc; then
3014
3015     case $cpu in
3016         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3017             cpuflags="-mcpu=$cpu"
3018             disable vis
3019         ;;
3020         ultrasparc*|niagara[234])
3021             cpuflags="-mcpu=$cpu"
3022         ;;
3023     esac
3024
3025 elif enabled x86; then
3026
3027     case $cpu in
3028         i[345]86|pentium)
3029             cpuflags="-march=$cpu"
3030             disable mmx
3031         ;;
3032         # targets that do NOT support conditional mov (cmov)
3033         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3034             cpuflags="-march=$cpu"
3035             disable cmov
3036         ;;
3037         # targets that do support conditional mov (cmov)
3038         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3039             cpuflags="-march=$cpu"
3040             enable cmov
3041             enable fast_cmov
3042         ;;
3043         # targets that do support conditional mov but on which it's slow
3044         pentium4|pentium4m|prescott|nocona)
3045             cpuflags="-march=$cpu"
3046             enable cmov
3047             disable fast_cmov
3048         ;;
3049     esac
3050
3051 fi
3052
3053 if [ "$cpu" != generic ]; then
3054     add_cflags  $cpuflags
3055     add_asflags $cpuflags
3056 fi
3057
3058 # compiler sanity check
3059 check_exec <<EOF
3060 int main(void){ return 0; }
3061 EOF
3062 if test "$?" != 0; then
3063     echo "$cc is unable to create an executable file."
3064     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3065         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3066         echo "Only do this if you know what cross compiling means."
3067     fi
3068     die "C compiler test failed."
3069 fi
3070
3071 add_cppflags -D_ISOC99_SOURCE
3072 add_cxxflags -D__STDC_CONSTANT_MACROS
3073 check_cflags -std=c99
3074 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3075 #include <stdlib.h>
3076 EOF
3077 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3078 #include <stdlib.h>
3079 EOF
3080
3081 check_host_cflags -std=c99
3082 check_host_cflags -Wall
3083
3084 check_64bit(){
3085     arch32=$1
3086     arch64=$2
3087     expr=$3
3088     check_code cc "" "int test[2*($expr) - 1]" &&
3089         subarch=$arch64 || subarch=$arch32
3090 }
3091
3092 case "$arch" in
3093     aarch64|alpha|ia64)
3094         spic=$shared
3095     ;;
3096     mips)
3097         check_64bit mips mips64 '_MIPS_SIM > 1'
3098         spic=$shared
3099     ;;
3100     parisc)
3101         check_64bit parisc parisc64 'sizeof(void *) > 4'
3102         spic=$shared
3103     ;;
3104     ppc)
3105         check_64bit ppc ppc64 'sizeof(void *) > 4'
3106         spic=$shared
3107     ;;
3108     sparc)
3109         check_64bit sparc sparc64 'sizeof(void *) > 4'
3110         spic=$shared
3111     ;;
3112     x86)
3113         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3114         if test "$subarch" = "x86_64"; then
3115             spic=$shared
3116         fi
3117     ;;
3118     ppc)
3119         check_cc <<EOF && subarch="ppc64"
3120         int test[(int)sizeof(char*) - 7];
3121 EOF
3122     ;;
3123 esac
3124
3125 enable $subarch
3126 enabled spic && enable pic
3127
3128 # OS specific
3129 case $target_os in
3130     haiku)
3131         prefix_default="/boot/common"
3132         network_extralibs="-lnetwork"
3133         host_libs=
3134         ;;
3135     sunos)
3136         FFSERVERLDFLAGS=""
3137         SHFLAGS='-shared -Wl,-h,$$(@F)'
3138         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3139         network_extralibs="-lsocket -lnsl"
3140         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3141         # When using suncc to build, the Solaris linker will mark
3142         # an executable with each instruction set encountered by
3143         # the Solaris assembler.  As our libraries contain their own
3144         # guards for processor-specific code, instead suppress
3145         # generation of the HWCAPS ELF section on Solaris x86 only.
3146         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3147         nm_default='nm -P -g'
3148         ;;
3149     netbsd)
3150         disable symver
3151         oss_indev_extralibs="-lossaudio"
3152         oss_outdev_extralibs="-lossaudio"
3153         enabled gcc || check_ldflags -Wl,-zmuldefs
3154         ;;
3155     openbsd|bitrig)
3156         # On OpenBSD 4.5. the compiler does not use PIC unless
3157         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3158         # however the generated executable will not do anything
3159         # (simply quits with exit-code 1, no crash, no output).
3160         # Thus explicitly enable PIC here.
3161         enable pic
3162         disable symver
3163         SHFLAGS='-shared'
3164         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3165         SLIB_INSTALL_LINKS=
3166         oss_indev_extralibs="-lossaudio"
3167         oss_outdev_extralibs="-lossaudio"
3168         ;;
3169     dragonfly)
3170         disable symver
3171         ;;
3172     freebsd)
3173         ;;
3174     bsd/os)
3175         add_extralibs -lpoll -lgnugetopt
3176         strip="strip -d"
3177         ;;
3178     darwin)
3179         gas="gas-preprocessor.pl $cc"
3180         enabled ppc && add_asflags -force_cpusubtype_ALL
3181         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3182         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3183         strip="${strip} -x"
3184         add_ldflags -Wl,-dynamic,-search_paths_first
3185         SLIBSUF=".dylib"
3186         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3187         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3188         FFSERVERLDFLAGS=-Wl,-bind_at_load
3189         objformat="macho"
3190         enabled x86_64 && objformat="macho64"
3191         enabled_any pic shared ||
3192             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3193         ;;
3194     mingw32*)
3195         if test $target_os = "mingw32ce"; then
3196             disable network
3197         else
3198             target_os=mingw32
3199         fi
3200         LIBTARGET=i386
3201         if enabled x86_64; then
3202             LIBTARGET="i386:x86-64"
3203         elif enabled arm; then
3204             LIBTARGET=arm-wince
3205         fi
3206         shlibdir_default="$bindir_default"
3207         SLIBPREF=""
3208         SLIBSUF=".dll"
3209         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3210         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3211         dlltool="${cross_prefix}dlltool"
3212         if check_cmd lib.exe -list; then
3213             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3214             if enabled x86_64; then
3215                 LIBTARGET=x64
3216             fi
3217         elif check_cmd $dlltool --version; then
3218             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3219         fi
3220         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3221         SLIB_INSTALL_LINKS=
3222         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3223         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3224         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3225         objformat="win32"
3226         ranlib=:
3227         enable dos_paths
3228         add_cppflags -U__STRICT_ANSI__
3229         ;;
3230     win32|win64)
3231         if enabled shared; then
3232             # Link to the import library instead of the normal static library
3233             # for shared libs.
3234             LD_LIB='%.lib'
3235             # Cannot build shared and static libraries at the same time with
3236             # MSVC.
3237             disable static
3238         fi
3239         shlibdir_default="$bindir_default"
3240         SLIBPREF=""
3241         SLIBSUF=".dll"
3242         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3243         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3244         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3245         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3246         SLIB_INSTALL_LINKS=
3247         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3248         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3249         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3250         objformat="win32"
3251         ranlib=:
3252         enable dos_paths
3253         ;;
3254     cygwin*)
3255         target_os=cygwin
3256         shlibdir_default="$bindir_default"
3257         SLIBPREF="cyg"
3258         SLIBSUF=".dll"
3259         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3260         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3261         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3262         SLIB_INSTALL_LINKS=
3263         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3264         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3265         objformat="win32"
3266         enable dos_paths
3267         ;;
3268     *-dos|freedos|opendos)
3269         network_extralibs="-lsocket"
3270         objformat="coff"
3271         enable dos_paths
3272         add_cppflags -U__STRICT_ANSI__
3273         ;;
3274     linux)
3275         enable dv1394
3276         ;;
3277     irix*)
3278         target_os=irix
3279         ranlib="echo ignoring ranlib"
3280         ;;
3281     os/2*)
3282         strip="lxlite -CS"
3283         ln_s="cp -f"
3284         objformat="aout"
3285         add_cppflags -D_GNU_SOURCE
3286         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3287         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3288         FFSERVERLDFLAGS=""
3289         LIBSUF="_s.a"
3290         SLIBPREF=""
3291         SLIBSUF=".dll"
3292         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3293         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3294         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3295             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3296             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3297             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3298             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3299             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3300         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3301             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3302         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3303         enable dos_paths
3304         enable_weak os2threads
3305         ;;
3306     gnu/kfreebsd)
3307         add_cppflags -D_BSD_SOURCE
3308         ;;
3309     gnu)
3310         ;;
3311     qnx)
3312         add_cppflags -D_QNX_SOURCE
3313         network_extralibs="-lsocket"
3314         ;;
3315     symbian)
3316         SLIBSUF=".dll"
3317         enable dos_paths
3318         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3319         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3320         add_ldflags -Wl,--target1-abs,--no-undefined \
3321                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3322                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3323         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3324                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3325                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3326         ;;
3327     osf1)
3328         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3329         FFSERVERLDFLAGS=
3330         ;;
3331     minix)
3332         ;;
3333     plan9)
3334         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3335                      -D_REENTRANT_SOURCE        \
3336                      -D_RESEARCH_SOURCE         \
3337                      -DFD_SETSIZE=96            \
3338                      -DHAVE_SOCK_OPTS
3339         add_compat strtod.o strtod=avpriv_strtod
3340         network_extralibs='-lbsd'
3341         exeobjs=compat/plan9/main.o
3342         disable ffserver
3343         ln_s='ln -s -f'
3344         cp_f='cp'
3345         ;;
3346     none)
3347         ;;
3348     *)
3349         die "Unknown OS '$target_os'."
3350         ;;
3351 esac
3352
3353 # determine libc flavour
3354
3355 if check_cpp_condition features.h "defined __UCLIBC__"; then
3356     libc_type=uclibc
3357     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3358 elif check_cpp_condition features.h "defined __GLIBC__"; then
3359     libc_type=glibc
3360     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3361 elif check_header _mingw.h; then
3362     libc_type=mingw
3363     check_cpp_condition _mingw.h \
3364         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3365             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3366         die "ERROR: MinGW runtime version must be >= 3.15."
3367     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3368             __MINGW64_VERSION_MAJOR < 3"; then
3369         add_compat msvcrt/snprintf.o
3370         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3371     fi
3372 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3373     libc_type=newlib
3374     add_cppflags -U__STRICT_ANSI__
3375 elif check_func_headers stdlib.h _get_doserrno; then
3376     libc_type=msvcrt
3377     add_compat strtod.o strtod=avpriv_strtod
3378     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3379                                  _snprintf=avpriv_snprintf  \
3380                                  vsnprintf=avpriv_vsnprintf
3381 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3382     libc_type=klibc
3383 fi
3384
3385 test -n "$libc_type" && enable $libc_type
3386
3387 # hacks for compiler/libc/os combinations
3388
3389 if enabled_all tms470 glibc; then
3390     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3391     add_cppflags -D__USER_LABEL_PREFIX__=
3392     add_cppflags -D__builtin_memset=memset
3393     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3394     add_cflags   -pds=48    # incompatible redefinition of macro
3395 fi
3396
3397 if enabled_all ccc glibc; then
3398     add_ldflags -Wl,-z,now  # calls to libots crash without this
3399 fi
3400
3401 esc(){
3402     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3403 }
3404
3405 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3406
3407 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3408
3409 set_default $PATHS_LIST
3410 set_default nm
3411
3412 # we need to build at least one lib type
3413 if ! enabled_any static shared; then
3414     cat <<EOF
3415 At least one library type must be built.
3416 Specify --enable-static to build the static libraries or --enable-shared to
3417 build the shared libraries as well. To only build the shared libraries specify
3418 --disable-static in addition to --enable-shared.
3419 EOF
3420     exit 1;
3421 fi
3422
3423 die_license_disabled() {
3424     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3425 }
3426
3427 die_license_disabled_gpl() {
3428     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3429 }
3430
3431 die_license_disabled gpl libcdio
3432 die_license_disabled gpl libutvideo
3433 die_license_disabled gpl libx264
3434 die_license_disabled gpl libxavs
3435 die_license_disabled gpl libxvid
3436 die_license_disabled gpl x11grab
3437
3438 die_license_disabled nonfree libaacplus
3439 die_license_disabled nonfree libfaac
3440 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3441 enabled gpl && die_license_disabled_gpl nonfree openssl
3442
3443 die_license_disabled version3 libopencore_amrnb
3444 die_license_disabled version3 libopencore_amrwb
3445 die_license_disabled version3 libvo_aacenc
3446 die_license_disabled version3 libvo_amrwbenc
3447
3448 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3449
3450 disabled optimizations || check_cflags -fomit-frame-pointer
3451
3452 enable_pic() {
3453     enable pic
3454     add_cppflags -DPIC
3455     add_cflags   -fPIC
3456     add_asflags  -fPIC
3457 }
3458
3459 enabled pic && enable_pic
3460
3461 check_cc <<EOF || die "Symbol mangling check failed."
3462 int ff_extern;
3463 EOF
3464 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3465 extern_prefix=${sym%%ff_extern*}
3466
3467 check_cc <<EOF && enable_weak inline_asm
3468 void foo(void) { __asm__ volatile ("" ::); }
3469 EOF
3470
3471 _restrict=
3472 for restrict_keyword in restrict __restrict__ __restrict; do
3473     check_cc <<EOF && _restrict=$restrict_keyword && break
3474 void foo(char * $restrict_keyword p);
3475 EOF
3476 done
3477
3478 check_cc <<EOF && enable attribute_packed
3479 struct { int x; } __attribute__((packed)) x;
3480 EOF
3481
3482 check_cc <<EOF && enable attribute_may_alias
3483 union { int x; } __attribute__((may_alias)) x;
3484 EOF
3485
3486 check_cc <<EOF || die "endian test failed"
3487 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3488 EOF
3489 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3490
3491 if enabled alpha; then
3492
3493     check_cflags -mieee
3494
3495 elif enabled arm; then
3496
3497     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3498 float func(float a, float b){ return a+b; }
3499 EOF
3500
3501     enabled thumb && check_cflags -mthumb || check_cflags -marm
3502     nogas=die
3503
3504     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3505         enable vfp_args
3506     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3507         case "${cross_prefix:-$cc}" in
3508             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3509             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3510 __asm__ (".eabi_attribute 28, 1");
3511 int main(void) { return 0; }
3512 EOF
3513         esac
3514         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3515     fi
3516
3517     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3518     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3519     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3520     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3521     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3522     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3523
3524     [ $target_os = linux ] ||
3525         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3526             $ARCH_EXT_LIST_ARM
3527
3528     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3529     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3530
3531     enabled_all armv6t2 shared !pic && enable_pic
3532
3533 elif enabled mips; then
3534
3535     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3536     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3537      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3538     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3539      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3540     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3541      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3542     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3543      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3544
3545 elif enabled parisc; then
3546
3547     if enabled gcc; then
3548         case $($cc -dumpversion) in
3549             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3550         esac
3551     fi
3552
3553 elif enabled ppc; then
3554
3555     enable local_aligned_8 local_aligned_16
3556
3557     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3558     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3559     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3560     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3561
3562     # AltiVec flags: The FSF version of GCC differs from the Apple version
3563     if enabled altivec; then
3564         nogas=warn
3565         check_cflags -maltivec -mabi=altivec &&
3566         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3567         check_cflags -faltivec
3568
3569         # check if our compiler supports Motorola AltiVec C API
3570         check_cc <<EOF || disable altivec
3571 $inc_altivec_h
3572 int main(void) {
3573     vector signed int v1 = (vector signed int) { 0 };
3574     vector signed int v2 = (vector signed int) { 1 };
3575     v1 = vec_add(v1, v2);
3576     return 0;
3577 }
3578 EOF
3579
3580         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3581     fi
3582
3583 elif enabled sparc; then
3584
3585     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3586
3587 elif enabled x86; then
3588
3589     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3590
3591     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3592
3593     enable local_aligned_8 local_aligned_16
3594
3595     # check whether EBP is available on x86
3596     # As 'i' is stored on the stack, this program will crash
3597     # if the base pointer is used to access it because the
3598     # base pointer is cleared in the inline assembly code.
3599     check_exec_crash <<EOF && enable ebp_available
3600 volatile int i=0;
3601 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3602 return i;
3603 EOF
3604
3605     # check whether EBX is available on x86
3606     check_inline_asm ebx_available '""::"b"(0)' &&
3607         check_inline_asm ebx_available '"":::"%ebx"'
3608
3609     # check whether xmm clobbers are supported
3610     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3611
3612     # check whether binutils is new enough to compile SSSE3/MMXEXT
3613     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3614     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3615
3616     if ! disabled_any asm mmx yasm; then
3617         if check_cmd $yasmexe --version; then
3618             enabled x86_64 && yasm_extra="-m amd64"
3619             yasm_debug="-g dwarf2"
3620         elif check_cmd nasm -v; then
3621             yasmexe=nasm
3622             yasm_debug="-g -F dwarf"
3623             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3624         fi
3625
3626         YASMFLAGS="-f $objformat $yasm_extra"
3627         enabled pic               && append YASMFLAGS "-DPIC"
3628         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3629         case "$objformat" in
3630             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3631         esac
3632
3633         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3634             die "yasm not found, use --disable-yasm for a crippled build"
3635         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3636         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3637         check_yasm "CPU amdnop" && enable cpunop
3638     fi
3639
3640     case "$cpu" in
3641         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3642             disable fast_clz
3643         ;;
3644     esac
3645
3646 fi
3647
3648 if enabled asm; then
3649     as=${gas:=$as}
3650     check_as <<EOF && enable gnu_as || \
3651         $nogas "GNU assembler not found, install gas-preprocessor"
3652 .macro m n
3653 \n: .int 0
3654 .endm
3655 m x
3656 EOF
3657 fi
3658
3659 check_ldflags -Wl,--as-needed
3660
3661 if check_func dlopen; then
3662     ldl=
3663 elif check_func dlopen -ldl; then
3664     ldl=-ldl
3665 fi
3666
3667 if ! disabled network; then
3668     check_type "sys/types.h sys/socket.h" socklen_t
3669     check_type netdb.h "struct addrinfo"
3670     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3671     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3672     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3673     check_type netinet/in.h "struct sockaddr_in6"
3674     check_type poll.h "struct pollfd"
3675     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3676     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3677     check_type netinet/sctp.h "struct sctp_event_subscribe"
3678     check_func getaddrinfo $network_extralibs
3679     check_func getservbyport $network_extralibs
3680     # Prefer arpa/inet.h over winsock2
3681     if check_header arpa/inet.h ; then
3682         check_func closesocket
3683     elif check_header winsock2.h ; then
3684         check_func_headers winsock2.h closesocket -lws2 &&
3685             network_extralibs="-lws2" ||
3686         { check_func_headers winsock2.h closesocket -lws2_32 &&
3687             network_extralibs="-lws2_32"; }
3688         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3689         check_type ws2tcpip.h socklen_t
3690         check_type ws2tcpip.h "struct addrinfo"
3691         check_type ws2tcpip.h "struct group_source_req"
3692         check_type ws2tcpip.h "struct ip_mreq_source"
3693         check_type ws2tcpip.h "struct ipv6_mreq"
3694         check_type winsock2.h "struct pollfd"
3695         check_type ws2tcpip.h "struct sockaddr_in6"
3696         check_type ws2tcpip.h "struct sockaddr_storage"
3697         check_struct winsock2.h "struct sockaddr" sa_len
3698     else
3699         disable network
3700     fi
3701 fi
3702
3703 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3704 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3705
3706 check_func  access
3707 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3708 check_func  fcntl
3709 check_func  fork
3710 check_func  gethrtime
3711 check_func  getopt
3712 check_func  getrusage
3713 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3714 check_func  gettimeofday
3715 check_func  inet_aton $network_extralibs
3716 check_func  isatty
3717 check_func  localtime_r
3718 check_func  ${malloc_prefix}memalign            && enable memalign
3719 check_func  mkstemp
3720 check_func  mmap
3721 check_func  mprotect
3722 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3723 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3724 check_func  setrlimit
3725 check_func  strerror_r
3726 check_func  sched_getaffinity
3727 check_func  sysconf
3728 check_func  sysctl
3729 check_func  usleep
3730 check_func_headers conio.h kbhit
3731 check_func_headers windows.h PeekNamedPipe
3732 check_func_headers io.h setmode
3733 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3734 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3735 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3736 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3737 check_func_headers windows.h GetProcessAffinityMask
3738 check_func_headers windows.h GetProcessTimes
3739 check_func_headers windows.h GetSystemTimeAsFileTime
3740 check_func_headers windows.h MapViewOfFile
3741 check_func_headers windows.h SetConsoleTextAttribute
3742 check_func_headers windows.h Sleep
3743 check_func_headers windows.h VirtualAlloc
3744 check_func_headers glob.h glob
3745
3746 check_header direct.h
3747 check_header dlfcn.h
3748 check_header dxva.h
3749 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3750 check_header io.h
3751 check_header libcrystalhd/libcrystalhd_if.h
3752 check_header malloc.h
3753 check_header poll.h
3754 check_header sys/mman.h
3755 check_header sys/param.h
3756 check_header sys/resource.h
3757 check_header sys/select.h
3758 check_header sys/time.h
3759 check_header termios.h
3760 check_header unistd.h
3761 check_header vdpau/vdpau.h
3762 check_header vdpau/vdpau_x11.h
3763 check_header windows.h
3764 check_header X11/extensions/XvMClib.h
3765 check_header asm/types.h
3766
3767 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3768 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3769
3770 # check for VDA header
3771 if ! disabled vda && ! enabled ppc; then
3772     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3773         enable vda
3774         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3775     fi
3776 fi
3777
3778 if ! disabled w32threads && ! enabled pthreads; then
3779     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3780 fi
3781
3782 # check for some common methods of building with pthread support
3783 # do this before the optional library checks as some of them require pthreads
3784 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3785     enable pthreads
3786     if check_func pthread_create; then
3787         :
3788     elif check_func pthread_create -pthread; then
3789         add_cflags -pthread
3790         add_extralibs -pthread
3791     elif check_func pthread_create -pthreads; then
3792         add_cflags -pthreads
3793         add_extralibs -pthreads
3794     elif check_func pthread_create -lpthreadGC2; then
3795         add_extralibs -lpthreadGC2
3796     elif ! check_lib pthread.h pthread_create -lpthread; then
3797         disable pthreads
3798     fi
3799 fi
3800
3801 for thread in $THREADS_LIST; do
3802     if enabled $thread; then
3803         test -n "$thread_type" &&
3804             die "ERROR: Only one thread type must be selected." ||
3805             thread_type="$thread"
3806     fi
3807 done
3808
3809 if enabled pthreads; then
3810   check_func pthread_cancel
3811 fi
3812
3813 check_lib math.h sin -lm && LIBM="-lm"
3814 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3815 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3816
3817 atan2f_args=2
3818 ldexpf_args=2
3819 powf_args=2
3820
3821 for func in $MATH_FUNCS; do
3822     eval check_mathfunc $func \${${func}_args:-1}
3823 done
3824
3825 # these are off by default, so fail if requested and not available
3826 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3827 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3828 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3829 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3830 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3831 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3832 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3833 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3834 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3835                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3836                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3837 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3838 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3839 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3840 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"
3841 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3842 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3843 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3844                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3845                         done || die "ERROR: libgsm not found"; }
3846 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3847 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3848 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3849 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3850 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3851 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3852 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3853 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3854                          check_lib openjpeg.h opj_version -lopenjpeg ||
3855                          die "ERROR: libopenjpeg not found"; }
3856 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3857 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3858 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3859 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3860 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3861 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3862 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3863     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3864     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3865 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3866 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3867                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3868                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3869 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3870 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3871 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3872 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3873 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3874 enabled libvpx     && {
3875     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3876                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3877     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 ||
3878                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3879     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3880     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3881 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3882                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3883                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3884 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3885 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3886 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3887                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3888                         die "ERROR: openal not found"; } &&
3889                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3890                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3891 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3892                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3893                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3894                         die "ERROR: openssl not found"; }
3895
3896 if enabled gnutls; then
3897     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3898     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3899 fi
3900
3901 # libdc1394 check
3902 if enabled libdc1394; then
3903     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3904         enable libdc1394_2; } ||
3905     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3906         enable libdc1394_1; } ||
3907     die "ERROR: No version of libdc1394 found "
3908 fi
3909
3910 SDL_CONFIG="${cross_prefix}sdl-config"
3911 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3912     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3913     enable sdl &&
3914     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3915 else
3916   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3917     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3918     sdl_libs=$("${SDL_CONFIG}" --libs)
3919     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3920     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3921     enable sdl &&
3922     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3923   fi
3924 fi
3925 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3926
3927 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3928 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3929 perl --version > /dev/null 2>&1 && enable perl || disable perl
3930 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3931 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3932
3933 check_header linux/fb.h
3934 check_header linux/videodev.h
3935 check_header linux/videodev2.h
3936 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3937
3938 check_header sys/videoio.h
3939
3940 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3941 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3942 # w32api 3.12 had it defined wrong
3943 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3944
3945 check_type "dshow.h" IBaseFilter
3946
3947 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3948 { check_header dev/bktr/ioctl_meteor.h &&
3949   check_header dev/bktr/ioctl_bt848.h; } ||
3950 { check_header machine/ioctl_meteor.h &&
3951   check_header machine/ioctl_bt848.h; } ||
3952 { check_header dev/video/meteor/ioctl_meteor.h &&
3953   check_header dev/video/bktr/ioctl_bt848.h; } ||
3954 check_header dev/ic/bt8xx.h
3955
3956 check_header sndio.h
3957 if check_struct sys/soundcard.h audio_buf_info bytes; then
3958     enable_safe sys/soundcard.h
3959 else
3960     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3961     #include <sys/soundcard.h>
3962     audio_buf_info abc;
3963 EOF
3964 fi
3965 check_header soundcard.h
3966
3967 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3968
3969 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3970     check_func jack_port_get_latency_range -ljack
3971
3972 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3973
3974 if enabled libcdio; then
3975     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
3976 fi
3977
3978 enabled x11grab                                           &&
3979 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3980 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3981 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3982
3983 if ! disabled vaapi; then
3984     check_lib va/va.h vaInitialize -lva && {
3985         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3986         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3987     } || disable vaapi
3988 fi
3989
3990 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3991     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3992         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3993 fi
3994
3995 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3996 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3997 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"
3998
3999 # add some useful compiler flags if supported
4000 check_cflags -Wdeclaration-after-statement
4001 check_cflags -Wall
4002 check_cflags -Wno-parentheses
4003 check_cflags -Wno-switch
4004 check_cflags -Wno-format-zero-length
4005 check_cflags -Wdisabled-optimization
4006 check_cflags -Wpointer-arith
4007 check_cflags -Wredundant-decls
4008 check_cflags -Wno-pointer-sign
4009 check_cflags -Wwrite-strings
4010 check_cflags -Wtype-limits
4011 check_cflags -Wundef
4012 check_cflags -Wmissing-prototypes
4013 check_cflags -Wno-pointer-to-int-cast
4014 check_cflags -Wstrict-prototypes
4015 enabled extra_warnings && check_cflags -Winline
4016
4017 # add some linker flags
4018 check_ldflags -Wl,--warn-common
4019 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4020 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4021
4022 enabled xmm_clobber_test &&
4023     check_ldflags -Wl,--wrap,avcodec_open2              \
4024                   -Wl,--wrap,avcodec_decode_audio4      \
4025                   -Wl,--wrap,avcodec_decode_video2      \
4026                   -Wl,--wrap,avcodec_decode_subtitle2   \
4027                   -Wl,--wrap,avcodec_encode_audio2      \
4028                   -Wl,--wrap,avcodec_encode_video       \
4029                   -Wl,--wrap,avcodec_encode_subtitle    \
4030                   -Wl,--wrap,sws_scale ||
4031     disable xmm_clobber_test
4032
4033 echo "X{};" > $TMPV
4034 if test_ldflags -Wl,--version-script,$TMPV; then
4035     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4036     check_cc <<EOF && enable symver_asm_label
4037 void ff_foo(void) __asm__ ("av_foo@VERSION");
4038 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4039 EOF
4040     check_cc <<EOF && enable symver_gnu_asm
4041 __asm__(".symver ff_foo,av_foo@VERSION");
4042 void ff_foo(void) {}
4043 EOF
4044 fi
4045
4046 if [ -z "$optflags" ]; then
4047     if enabled small; then
4048         optflags=$cflags_size
4049     elif enabled optimizations; then
4050         optflags=$cflags_speed
4051     else
4052         optflags=$cflags_noopt
4053     fi
4054 fi
4055
4056 check_optflags(){
4057     check_cflags "$@"
4058     enabled lto && check_ldflags "$@"
4059 }
4060
4061
4062 if enabled lto; then
4063     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4064     check_cflags  -flto
4065     check_ldflags -flto $cpuflags
4066 fi
4067
4068 check_optflags $optflags
4069 check_optflags -fno-math-errno
4070 check_optflags -fno-signed-zeros
4071
4072 enabled ftrapv && check_cflags -ftrapv
4073
4074 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4075 int x;
4076 EOF
4077
4078
4079 if enabled icc; then
4080     # Just warnings, no remarks
4081     check_cflags -w1
4082     # -wd: Disable following warnings
4083     # 144, 167, 556: -Wno-pointer-sign
4084     # 188: enumerated type mixed with another type
4085     # 1292: attribute "foo" ignored
4086     # 1419: external declaration in primary source file
4087     # 10006: ignoring unknown option -fno-signed-zeros
4088     # 10148: ignoring unknown option -Wno-parentheses
4089     # 10156: ignoring option '-W'; no argument required
4090     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4091     # 11030: Warning unknown option --as-needed
4092     # 10156: ignoring option '-export'; no argument required
4093     check_ldflags -wd10156,11030
4094     # Allow to compile with optimizations
4095     check_ldflags -march=$cpu
4096     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4097     enable ebp_available
4098     if enabled x86_32; then
4099         icc_version=$($cc -dumpversion)
4100         test ${icc_version%%.*} -ge 11 &&
4101             check_cflags -falign-stack=maintain-16-byte ||
4102             disable aligned_stack
4103     fi
4104 elif enabled ccc; then
4105     # disable some annoying warnings
4106     add_cflags -msg_disable bitnotint
4107     add_cflags -msg_disable mixfuncvoid
4108     add_cflags -msg_disable nonstandcast
4109     add_cflags -msg_disable unsupieee
4110 elif enabled gcc; then
4111     check_optflags -fno-tree-vectorize
4112     check_cflags -Werror=implicit-function-declaration
4113     check_cflags -Werror=missing-prototypes
4114     check_cflags -Werror=return-type
4115     check_cflags -Werror=vla
4116 elif enabled llvm_gcc; then
4117     check_cflags -mllvm -stack-alignment=16
4118 elif enabled clang; then
4119     check_cflags -mllvm -stack-alignment=16
4120     check_cflags -Qunused-arguments
4121     check_cflags -Werror=implicit-function-declaration
4122     check_cflags -Werror=missing-prototypes
4123     check_cflags -Werror=return-type
4124 elif enabled armcc; then
4125     # 2523: use of inline assembler is deprecated
4126     add_cflags -W${armcc_opt},--diag_suppress=2523
4127     add_cflags -W${armcc_opt},--diag_suppress=1207
4128     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4129     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4130     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4131     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4132 elif enabled tms470; then
4133     add_cflags -pds=824 -pds=837
4134 elif enabled pathscale; then
4135     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4136 elif enabled msvc; then
4137     enabled x86_32 && disable aligned_stack
4138 fi
4139
4140 case $target_os in
4141     osf1)
4142         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4143     ;;
4144     plan9)
4145         add_cppflags -Dmain=plan9_main
4146     ;;
4147 esac
4148
4149 enabled_any $THREADS_LIST      && enable threads
4150
4151 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4152
4153 check_deps $CONFIG_LIST       \
4154            $CONFIG_EXTRA      \
4155            $HAVE_LIST         \
4156            $ALL_COMPONENTS    \
4157
4158
4159 if test $target_os = "haiku"; then
4160     disable memalign
4161     disable posix_memalign
4162 fi
4163
4164 ! enabled_any memalign posix_memalign aligned_malloc &&
4165     enabled_any $need_memalign && enable memalign_hack
4166
4167 # add_dep lib dep
4168 # -> enable ${lib}_deps_${dep}
4169 # -> add $dep to ${lib}_deps only once
4170 add_dep() {
4171     lib=$1
4172     dep=$2
4173     enabled "${lib}_deps_${dep}" && return 0
4174     enable  "${lib}_deps_${dep}"
4175     prepend "${lib}_deps" $dep
4176 }
4177
4178 # merge deps lib components
4179 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4180 merge_deps() {
4181     lib=$1
4182     shift
4183     for comp in $*; do
4184         enabled $comp || continue
4185         eval "dep=\"\$${comp}_deps\""
4186         for d in $dep; do
4187             add_dep $lib $d
4188         done
4189     done
4190 }
4191
4192 merge_deps libavfilter $FILTER_LIST
4193
4194 echo "install prefix            $prefix"
4195 echo "source path               $source_path"
4196 echo "C compiler                $cc"
4197 echo "ARCH                      $arch ($cpu)"
4198 if test "$build_suffix" != ""; then
4199     echo "build suffix              $build_suffix"
4200 fi
4201 if test "$progs_suffix" != ""; then
4202     echo "progs suffix              $progs_suffix"
4203 fi
4204 if test "$extra_version" != ""; then
4205     echo "version string suffix     $extra_version"
4206 fi
4207 echo "big-endian                ${bigendian-no}"
4208 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4209 if enabled x86; then
4210     echo "${yasmexe}                      ${yasm-no}"
4211     echo "MMX enabled               ${mmx-no}"
4212     echo "MMXEXT enabled            ${mmxext-no}"
4213     echo "3DNow! enabled            ${amd3dnow-no}"
4214     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4215     echo "SSE enabled               ${sse-no}"
4216     echo "SSSE3 enabled             ${ssse3-no}"
4217     echo "AVX enabled               ${avx-no}"
4218     echo "FMA4 enabled              ${fma4-no}"
4219     echo "CMOV enabled              ${cmov-no}"
4220     echo "CMOV is fast              ${fast_cmov-no}"
4221     echo "EBX available             ${ebx_available-no}"
4222     echo "EBP available             ${ebp_available-no}"
4223 fi
4224 if enabled arm; then
4225     echo "ARMv5TE enabled           ${armv5te-no}"
4226     echo "ARMv6 enabled             ${armv6-no}"
4227     echo "ARMv6T2 enabled           ${armv6t2-no}"
4228     echo "VFP enabled               ${vfp-no}"
4229     echo "NEON enabled              ${neon-no}"
4230     echo "THUMB enabled             ${thumb-no}"
4231 fi
4232 if enabled mips; then
4233     echo "MIPS FPU enabled          ${mipsfpu-no}"
4234     echo "MIPS32R2 enabled          ${mips32r2-no}"
4235     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4236     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4237 fi
4238 if enabled ppc; then
4239     echo "AltiVec enabled           ${altivec-no}"
4240     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4241     echo "dcbzl available           ${dcbzl-no}"
4242 fi
4243 if enabled sparc; then
4244     echo "VIS enabled               ${vis-no}"
4245 fi
4246 echo "debug symbols             ${debug-no}"
4247 echo "strip symbols             ${stripping-no}"
4248 echo "optimize for size         ${small-no}"
4249 echo "optimizations             ${optimizations-no}"
4250 echo "static                    ${static-no}"
4251 echo "shared                    ${shared-no}"
4252 echo "postprocessing support    ${postproc-no}"
4253 echo "new filter support        ${avfilter-no}"
4254 echo "network support           ${network-no}"
4255 echo "threading support         ${thread_type-no}"
4256 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4257 echo "SDL support               ${sdl-no}"
4258 echo "libdxva2 enabled          ${dxva2-no}"
4259 echo "libva enabled             ${vaapi-no}"
4260 echo "libvdpau enabled          ${vdpau-no}"
4261 echo "AVISynth enabled          ${avisynth-no}"
4262 echo "frei0r enabled            ${frei0r-no}"
4263 echo "gnutls enabled            ${gnutls-no}"
4264 echo "libaacplus enabled        ${libaacplus-no}"
4265 echo "libass enabled            ${libass-no}"
4266 echo "libcaca enabled           ${libcaca-no}"
4267 echo "libcdio support           ${libcdio-no}"
4268 echo "libcelt enabled           ${libcelt-no}"
4269 echo "libdc1394 support         ${libdc1394-no}"
4270 echo "libfaac enabled           ${libfaac-no}"
4271 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4272 echo "libgsm enabled            ${libgsm-no}"
4273 echo "libiec61883 support       ${libiec61883-no}"
4274 echo "libilbc enabled           ${libilbc-no}"
4275 echo "libmodplug enabled        ${libmodplug-no}"
4276 echo "libmp3lame enabled        ${libmp3lame-no}"
4277 echo "libnut enabled            ${libnut-no}"
4278 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4279 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4280 echo "libopencv support         ${libopencv-no}"
4281 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4282 echo "libopus enabled           ${libopus-no}"
4283 echo "libpulse enabled          ${libpulse-no}"
4284 echo "librtmp enabled           ${librtmp-no}"
4285 echo "libschroedinger enabled   ${libschroedinger-no}"
4286 echo "libsoxr enabled           ${libsoxr-no}"
4287 echo "libspeex enabled          ${libspeex-no}"
4288 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4289 echo "libtheora enabled         ${libtheora-no}"
4290 echo "libtwolame enabled        ${libtwolame-no}"
4291 echo "libutvideo enabled        ${libutvideo-no}"
4292 echo "libv4l2 enabled           ${libv4l2-no}"
4293 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4294 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4295 echo "libvorbis enabled         ${libvorbis-no}"
4296 echo "libvpx enabled            ${libvpx-no}"
4297 echo "libx264 enabled           ${libx264-no}"
4298 echo "libxavs enabled           ${libxavs-no}"
4299 echo "libxvid enabled           ${libxvid-no}"
4300 echo "openal enabled            ${openal-no}"
4301 echo "openssl enabled           ${openssl-no}"
4302 echo "zlib enabled              ${zlib-no}"
4303 echo "bzlib enabled             ${bzlib-no}"
4304 echo "texi2html enabled         ${texi2html-no}"
4305 echo "perl enabled              ${perl-no}"
4306 echo "pod2man enabled           ${pod2man-no}"
4307 echo "makeinfo enabled          ${makeinfo-no}"
4308 test -n "$random_seed" &&
4309     echo "random seed               ${random_seed}"
4310 echo
4311
4312 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4313     echo "Enabled ${type}s:"
4314     eval list=\$$(toupper $type)_LIST
4315     print_enabled '_*' $list | sort | pr -r -3 -t
4316     echo
4317 done
4318
4319 license="LGPL version 2.1 or later"
4320 if enabled nonfree; then
4321     license="nonfree and unredistributable"
4322 elif enabled gplv3; then
4323     license="GPL version 3 or later"
4324 elif enabled lgplv3; then
4325     license="LGPL version 3 or later"
4326 elif enabled gpl; then
4327     license="GPL version 2 or later"
4328 fi
4329
4330 echo "License: $license"
4331
4332 echo "Creating config.mak and config.h..."
4333
4334 test -e Makefile || $ln_s "$source_path/Makefile" .
4335
4336 enabled stripping || strip="echo skipping strip"
4337
4338 config_files="$TMPH config.mak"
4339
4340 cat > config.mak <<EOF
4341 # Automatically generated by configure - do not modify!
4342 ifndef FFMPEG_CONFIG_MAK
4343 FFMPEG_CONFIG_MAK=1
4344 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4345 prefix=$prefix
4346 LIBDIR=\$(DESTDIR)$libdir
4347 SHLIBDIR=\$(DESTDIR)$shlibdir
4348 INCDIR=\$(DESTDIR)$incdir
4349 BINDIR=\$(DESTDIR)$bindir
4350 DATADIR=\$(DESTDIR)$datadir
4351 MANDIR=\$(DESTDIR)$mandir
4352 SRC_PATH=$source_path
4353 ifndef MAIN_MAKEFILE
4354 SRC_PATH:=\$(SRC_PATH:.%=..%)
4355 endif
4356 CC_IDENT=$cc_ident
4357 ARCH=$arch
4358 CC=$cc
4359 CXX=$cxx
4360 AS=$as
4361 LD=$ld
4362 DEPCC=$dep_cc
4363 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4364 DEPAS=$as
4365 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4366 YASM=$yasmexe
4367 DEPYASM=$yasmexe
4368 AR=$ar
4369 ARFLAGS=$arflags
4370 AR_O=$ar_o
4371 RANLIB=$ranlib
4372 CP=cp -p
4373 LN_S=$ln_s
4374 STRIP=$strip
4375 CPPFLAGS=$CPPFLAGS
4376 CFLAGS=$CFLAGS
4377 CXXFLAGS=$CXXFLAGS
4378 ASFLAGS=$ASFLAGS
4379 AS_C=$AS_C
4380 AS_O=$AS_O
4381 CC_C=$CC_C
4382 CC_E=$CC_E
4383 CC_O=$CC_O
4384 CXX_C=$CXX_C
4385 CXX_O=$CXX_O
4386 LD_O=$LD_O
4387 LD_LIB=$LD_LIB
4388 LD_PATH=$LD_PATH
4389 DLLTOOL=$dlltool
4390 LDFLAGS=$LDFLAGS
4391 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4392 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4393 YASMFLAGS=$YASMFLAGS
4394 BUILDSUF=$build_suffix
4395 PROGSSUF=$progs_suffix
4396 FULLNAME=$FULLNAME
4397 LIBPREF=$LIBPREF
4398 LIBSUF=$LIBSUF
4399 LIBNAME=$LIBNAME
4400 SLIBPREF=$SLIBPREF
4401 SLIBSUF=$SLIBSUF
4402 EXESUF=$EXESUF
4403 EXTRA_VERSION=$extra_version
4404 CCDEP=$CCDEP
4405 CXXDEP=$CXXDEP
4406 CCDEP_FLAGS=$CCDEP_FLAGS
4407 ASDEP=$ASDEP
4408 ASDEP_FLAGS=$ASDEP_FLAGS
4409 CC_DEPFLAGS=$CC_DEPFLAGS
4410 AS_DEPFLAGS=$AS_DEPFLAGS
4411 HOSTCC=$host_cc
4412 HOSTLD=$host_ld
4413 HOSTCFLAGS=$host_cflags
4414 HOSTEXESUF=$HOSTEXESUF
4415 HOSTLDFLAGS=$host_ldflags
4416 HOSTLIBS=$host_libs
4417 DEPHOSTCC=$host_cc
4418 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4419 HOSTCCDEP=$HOSTCCDEP
4420 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4421 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4422 HOSTCC_C=$HOSTCC_C
4423 HOSTCC_O=$HOSTCC_O
4424 HOSTLD_O=$HOSTLD_O
4425 TARGET_EXEC=$target_exec
4426 TARGET_PATH=$target_path
4427 LIBS-ffplay=$sdl_libs
4428 CFLAGS-ffplay=$sdl_cflags
4429 ZLIB=$($ldflags_filter -lz)
4430 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4431 EXTRALIBS=$extralibs
4432 COMPAT_OBJS=$compat_objs
4433 EXEOBJS=$exeobjs
4434 INSTALL=$install
4435 LIBTARGET=${LIBTARGET}
4436 SLIBNAME=${SLIBNAME}
4437 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4438 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4439 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4440 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4441 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4442 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4443 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4444 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4445 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4446 NOREDZONE_FLAGS=$noredzone_flags
4447 EOF
4448
4449 get_version(){
4450     lcname=lib${1}
4451     name=$(toupper $lcname)
4452     file=$source_path/$lcname/version.h
4453     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4454     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4455     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4456     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4457 }
4458
4459 map 'get_version $v' $LIBRARY_LIST
4460
4461 cat > $TMPH <<EOF
4462 /* Automatically generated by configure - do not modify! */
4463 #ifndef FFMPEG_CONFIG_H
4464 #define FFMPEG_CONFIG_H
4465 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4466 #define FFMPEG_LICENSE "$(c_escape $license)"
4467 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4468 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4469 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4470 #define av_restrict $_restrict
4471 #define EXTERN_PREFIX "${extern_prefix}"
4472 #define EXTERN_ASM ${extern_prefix}
4473 #define SLIBSUF "$SLIBSUF"
4474 #define HAVE_MMX2 HAVE_MMXEXT
4475 EOF
4476
4477 test -n "$assert_level" &&
4478     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4479
4480 test -n "$malloc_prefix" &&
4481     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4482
4483 if enabled yasm; then
4484     append config_files $TMPASM
4485     printf '' >$TMPASM
4486 fi
4487
4488 print_config ARCH_   "$config_files" $ARCH_LIST
4489 print_config HAVE_   "$config_files" $HAVE_LIST
4490 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4491                                      $CONFIG_EXTRA      \
4492                                      $ALL_COMPONENTS    \
4493
4494 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4495 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4496
4497 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4498 cp_if_changed $TMPH config.h
4499 touch .config
4500
4501 enabled yasm && cp_if_changed $TMPASM config.asm
4502
4503 cat > $TMPH <<EOF
4504 /* Generated by ffconf */
4505 #ifndef AVUTIL_AVCONFIG_H
4506 #define AVUTIL_AVCONFIG_H
4507 EOF
4508
4509 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4510
4511 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4512
4513 cp_if_changed $TMPH libavutil/avconfig.h
4514
4515 if test -n "$WARNINGS"; then
4516     printf "\n$WARNINGS"
4517     enabled fatal_warnings && exit 1
4518 fi
4519
4520 # build pkg-config files
4521
4522 pkgconfig_generate(){
4523     name=$1
4524     shortname=${name#lib}${build_suffix}
4525     comment=$2
4526     version=$3
4527     libs=$4
4528     requires=$5
4529     enabled ${name#lib} || return 0
4530     mkdir -p $name
4531     cat <<EOF > $name/$name.pc
4532 prefix=$prefix
4533 exec_prefix=\${prefix}
4534 libdir=$libdir
4535 includedir=$incdir
4536
4537 Name: $name
4538 Description: $comment
4539 Version: $version
4540 Requires: $(enabled shared || echo $requires)
4541 Requires.private: $(enabled shared && echo $requires)
4542 Conflicts:
4543 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4544 Libs.private: $(enabled shared && echo $libs)
4545 Cflags: -I\${includedir}
4546 EOF
4547
4548 mkdir -p doc/examples/pc-uninstalled
4549 includedir=${source_path}
4550 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4551     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4552 prefix=
4553 exec_prefix=
4554 libdir=\${pcfiledir}/../../../$name
4555 includedir=${includedir}
4556
4557 Name: $name
4558 Description: $comment
4559 Version: $version
4560 Requires: $requires
4561 Conflicts:
4562 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4563 Cflags: -I\${includedir}
4564 EOF
4565 }
4566
4567 libavfilter_pc_deps="libavutil = $LIBAVUTIL_VERSION"
4568 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4569 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4570 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample = $LIBAVRESAMPLE_VERSION,"
4571 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4572 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4573 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4574 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4575
4576 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4577 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4578
4579 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4580 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4581 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4582 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4583 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4584 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4585 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4586 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4587 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4588
4589 fix_ffmpeg_remote(){
4590     git_remote_from=$1
4591     git_remote_to=$2
4592     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4593     if [ "$fixme_remote" != "" ]; then
4594         echolog "
4595 Outdated domain in git config, the official domain for ffmpeg git is since
4596 November 2011, source.ffmpeg.org, both the old and the new point to the same
4597 repository and server. To update it enter the following commands:
4598 "
4599         for remote in $fixme_remote; do
4600             echolog "git remote set-url $remote $git_remote_to"
4601         done
4602     fi
4603 }
4604
4605 if test -f "$source_path/.git/config"; then
4606     remote_from=git.videolan.org
4607     remote_to=source.ffmpeg.org
4608     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4609     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4610 fi