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
 105 Program options:
 106   --disable-programs       do not build command line programs
 107   --disable-ffmpeg         disable ffmpeg build
 108   --disable-ffplay         disable ffplay build
 109   --disable-ffprobe        disable ffprobe build
 110   --disable-ffserver       disable ffserver build
 111
 112 Documentation options:
 113   --disable-doc            do not build documentation
 114   --disable-htmlpages      do not build HTML documentation pages
 115   --disable-manpages       do not build man documentation pages
 116   --disable-podpages       do not build POD documentation pages
 117   --disable-txtpages       do not build text documentation pages
 118
 119 Component options:
 120   --disable-avdevice       disable libavdevice build
 121   --disable-avcodec        disable libavcodec build
 122   --disable-avformat       disable libavformat build
 123   --disable-avutil         disable libavutil build
 124   --disable-swresample     disable libswresample build
 125   --disable-swscale        disable libswscale build
 126   --disable-postproc       disable libpostproc build
 127   --disable-avfilter       disable libavfilter build
 128   --enable-avresample      enable libavresample build [no]
 129   --disable-pthreads       disable pthreads [auto]
 130   --disable-w32threads     disable Win32 threads [auto]
 131   --disable-os2threads     disable OS/2 threads [auto]
 132   --enable-x11grab         enable X11 grabbing [no]
 133   --disable-network        disable network support [no]
 134   --disable-dct            disable DCT code
 135   --disable-dwt            disable DWT code
 136   --disable-lsp            disable LSP code
 137   --disable-lzo            disable LZO decoder code
 138   --disable-mdct           disable MDCT code
 139   --disable-rdft           disable RDFT code
 140   --disable-fft            disable FFT code
 141   --enable-dxva2           enable DXVA2 code
 142   --enable-vaapi           enable VAAPI code [autodetect]
 143   --enable-vda             enable VDA code   [autodetect]
 144   --enable-vdpau           enable VDPAU code [autodetect]
 145
 146 Individual component options:
 147   --disable-everything     disable all components listed below
 148   --disable-encoder=NAME   disable encoder NAME
 149   --enable-encoder=NAME    enable encoder NAME
 150   --disable-encoders       disable all encoders
 151   --disable-decoder=NAME   disable decoder NAME
 152   --enable-decoder=NAME    enable decoder NAME
 153   --disable-decoders       disable all decoders
 154   --disable-hwaccel=NAME   disable hwaccel NAME
 155   --enable-hwaccel=NAME    enable hwaccel NAME
 156   --disable-hwaccels       disable all hwaccels
 157   --disable-muxer=NAME     disable muxer NAME
 158   --enable-muxer=NAME      enable muxer NAME
 159   --disable-muxers         disable all muxers
 160   --disable-demuxer=NAME   disable demuxer NAME
 161   --enable-demuxer=NAME    enable demuxer NAME
 162   --disable-demuxers       disable all demuxers
 163   --enable-parser=NAME     enable parser NAME
 164   --disable-parser=NAME    disable parser NAME
 165   --disable-parsers        disable all parsers
 166   --enable-bsf=NAME        enable bitstream filter NAME
 167   --disable-bsf=NAME       disable bitstream filter NAME
 168   --disable-bsfs           disable all bitstream filters
 169   --enable-protocol=NAME   enable protocol NAME
 170   --disable-protocol=NAME  disable protocol NAME
 171   --disable-protocols      disable all protocols
 172   --enable-indev=NAME      enable input device NAME
 173   --disable-indev=NAME     disable input device NAME
 174   --disable-indevs         disable input devices
 175   --enable-outdev=NAME     enable output device NAME
 176   --disable-outdev=NAME    disable output device NAME
 177   --disable-outdevs        disable output devices
 178   --disable-devices        disable all devices
 179   --enable-filter=NAME     enable filter NAME
 180   --disable-filter=NAME    disable filter NAME
 181   --disable-filters        disable all filters
 182
 183 External library support:
 184   --enable-avisynth        enable reading of AVISynth script files [no]
 185   --enable-bzlib           enable bzlib [autodetect]
 186   --enable-fontconfig      enable fontconfig
 187   --enable-frei0r          enable frei0r video filtering
 188   --enable-gnutls          enable gnutls [no]
 189   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 190   --enable-libass          enable libass subtitles rendering [no]
 191   --enable-libbluray       enable BluRay reading using libbluray [no]
 192   --enable-libcaca         enable textual display using libcaca
 193   --enable-libcelt         enable CELT decoding via libcelt [no]
 194   --enable-libcdio         enable audio CD grabbing with libcdio
 195   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 196                            and libraw1394 [no]
 197   --enable-libfaac         enable AAC encoding via libfaac [no]
 198   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 199   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 200   --enable-libfreetype     enable libfreetype [no]
 201   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 202   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 203   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 204   --enable-libmodplug      enable ModPlug via libmodplug [no]
 205   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 206   --enable-libnut          enable NUT (de)muxing via libnut,
 207                            native (de)muxer exists [no]
 208   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 209   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 210   --enable-libopencv       enable video filtering via libopencv [no]
 211   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 212   --enable-libopus         enable Opus decoding via libopus [no]
 213   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 214   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 215   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 216   --enable-libsoxr         enable Include libsoxr resampling [no]
 217   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 218   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 219   --enable-libtheora       enable Theora encoding via libtheora [no]
 220   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 221   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 222   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 223   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 224   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 225   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 226                            native implementation exists [no]
 227   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
 228   --enable-libx264         enable H.264 encoding via x264 [no]
 229   --enable-libxavs         enable AVS encoding via xavs [no]
 230   --enable-libxvid         enable Xvid encoding via xvidcore,
 231                            native MPEG-4/Xvid encoder exists [no]
 232   --enable-openal          enable OpenAL 1.1 capture support [no]
 233   --enable-openssl         enable openssl [no]
 234   --enable-zlib            enable zlib [autodetect]
 235
 236 Advanced options (experts only):
 237   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 238   --enable-cross-compile   assume a cross-compiler is used
 239   --sysroot=PATH           root of cross-build tree
 240   --sysinclude=PATH        location of cross-build system headers
 241   --target-os=OS           compiler targets OS [$target_os]
 242   --target-exec=CMD        command to run executables on target
 243   --target-path=DIR        path to view of build directory on target
 244   --toolchain=NAME         set tool defaults according to NAME
 245   --nm=NM                  use nm tool NM [$nm_default]
 246   --ar=AR                  use archive tool AR [$ar_default]
 247   --as=AS                  use assembler AS [$as_default]
 248   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 249   --cc=CC                  use C compiler CC [$cc_default]
 250   --cxx=CXX                use C compiler CXX [$cxx_default]
 251   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 252   --ld=LD                  use linker LD [$ld_default]
 253   --host-cc=HOSTCC         use host C compiler HOSTCC
 254   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 255   --host-ld=HOSTLD         use host linker HOSTLD
 256   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 257   --host-libs=HLIBS        use libs HLIBS when linking for host
 258   --host-os=OS             compiler host OS [$target_os]
 259   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 260   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 261   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 262   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 263   --extra-version=STRING   version string suffix []
 264   --optflags=OPTFLAGS      override optimization-related compiler flags
 265   --build-suffix=SUFFIX    library name suffix []
 266   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 267   --progs-suffix=SUFFIX    program name suffix []
 268   --arch=ARCH              select architecture [$arch]
 269   --cpu=CPU                select the minimum required CPU (affects
 270                            instruction selection, may crash on older CPUs)
 271   --enable-pic             build position-independent code
 272   --enable-sram            allow use of on-chip SRAM
 273   --enable-thumb           compile for Thumb instruction set
 274   --disable-symver         disable symbol versioning
 275   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 276   --disable-safe-bitstream-reader
 277                            disable buffer boundary checking in bitreaders
 278                            (faster, but may crash)
 279   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 280   --enable-lto             use link-time optimization
 281
 282 Optimization options (experts only):
 283   --disable-asm            disable all assembler optimizations
 284   --disable-altivec        disable AltiVec optimizations
 285   --disable-amd3dnow       disable 3DNow! optimizations
 286   --disable-amd3dnowext    disable 3DNow! extended optimizations
 287   --disable-mmx            disable MMX optimizations
 288   --disable-mmxext         disable MMXEXT optimizations
 289   --disable-sse            disable SSE optimizations
 290   --disable-sse2           disable SSE2 optimizations
 291   --disable-sse3           disable SSE3 optimizations
 292   --disable-ssse3          disable SSSE3 optimizations
 293   --disable-sse4           disable SSE4 optimizations
 294   --disable-sse42          disable SSE4.2 optimizations
 295   --disable-avx            disable AVX optimizations
 296   --disable-fma4           disable FMA4 optimizations
 297   --disable-armv5te        disable armv5te optimizations
 298   --disable-armv6          disable armv6 optimizations
 299   --disable-armv6t2        disable armv6t2 optimizations
 300   --disable-vfp            disable VFP optimizations
 301   --disable-neon           disable NEON optimizations
 302   --disable-vis            disable VIS optimizations
 303   --disable-inline-asm     disable use of inline assembler
 304   --disable-yasm           disable use of yasm assembler
 305   --disable-mips32r2       disable MIPS32R2 optimizations
 306   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 307   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 308   --disable-mipsfpu        disable floating point MIPS optimizations
 309   --disable-fast-unaligned consider unaligned accesses slow
 310   --postproc-version=V     build libpostproc version V.
 311                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
 312
 313 Developer options (useful when working on FFmpeg itself):
 314   --enable-coverage        build with test coverage instrumentation
 315   --disable-debug          disable debugging symbols
 316   --enable-debug=LEVEL     set the debug level [$debuglevel]
 317   --disable-optimizations  disable compiler optimizations
 318   --enable-extra-warnings  enable more compiler warnings
 319   --disable-stripping      disable stripping of executables and shared libraries
 320   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 321                            2 causes a slowdown at runtime.
 322   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 323   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 324                            leaks and errors, using the specified valgrind binary.
 325                            Cannot be combined with --target-exec
 326   --enable-ftrapv          Trap arithmetic overflows
 327   --samples=PATH           location of test samples for FATE, if not set use
 328                            \$FATE_SAMPLES at make invocation time.
 329   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 330                            should be used only for debugging purposes)
 331   --enable-random          randomly enable/disable components
 332   --disable-random
 333   --enable-random=LIST     randomly enable/disable specific components or
 334   --disable-random=LIST    component groups. LIST is a comma-separated list
 335                            of NAME[:PROB] entries where NAME is a component
 336                            (group) and PROB the probability associated with
 337                            NAME (default 0.5).
 338   --random-seed=VALUE      seed value for --enable/disable-random
 339
 340 NOTE: Object files are built at the place where configure is launched.
 341 EOF
 342   exit 0
 343 }
 344
 345 quotes='""'
 346
 347 log(){
 348     echo "$@" >> $logfile
 349 }
 350
 351 log_file(){
 352     log BEGIN $1
 353     pr -n -t $1 >> $logfile
 354     log END $1
 355 }
 356
 357 echolog(){
 358     log "$@"
 359     echo "$@"
 360 }
 361
 362 warn(){
 363     log "WARNING: $*"
 364     WARNINGS="${WARNINGS}WARNING: $*\n"
 365 }
 366
 367 die(){
 368     echolog "$@"
 369     cat <<EOF
 370
 371 If you think configure made a mistake, make sure you are using the latest
 372 version from Git.  If the latest version fails, report the problem to the
 373 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 374 EOF
 375     if disabled logging; then
 376         cat <<EOF
 377 Rerun configure with logging enabled (do not use --disable-logging), and
 378 include the log this produces with your report.
 379 EOF
 380     else
 381         cat <<EOF
 382 Include the log file "$logfile" produced by configure as this will help
 383 solving the problem.
 384 EOF
 385     fi
 386     exit 1
 387 }
 388
 389 # Avoid locale weirdness, besides we really just want to translate ASCII.
 390 toupper(){
 391     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 392 }
 393
 394 tolower(){
 395     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 396 }
 397
 398 c_escape(){
 399     echo "$*" | sed 's/["\\]/\\\0/g'
 400 }
 401
 402 sh_quote(){
 403     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 404     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 405     echo "$v"
 406 }
 407
 408 cleanws(){
 409     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 410 }
 411
 412 filter(){
 413     pat=$1
 414     shift
 415     for v; do
 416         eval "case $v in $pat) echo $v ;; esac"
 417     done
 418 }
 419
 420 filter_out(){
 421     pat=$1
 422     shift
 423     for v; do
 424         eval "case $v in $pat) ;; *) echo $v ;; esac"
 425     done
 426 }
 427
 428 map(){
 429     m=$1
 430     shift
 431     for v; do eval $m; done
 432 }
 433
 434 add_suffix(){
 435     suffix=$1
 436     shift
 437     for v; do echo ${v}${suffix}; done
 438 }
 439
 440 set_all(){
 441     value=$1
 442     shift
 443     for var in $*; do
 444         eval $var=$value
 445     done
 446 }
 447
 448 set_weak(){
 449     value=$1
 450     shift
 451     for var; do
 452         eval : \${$var:=$value}
 453     done
 454 }
 455
 456 set_safe(){
 457     var=$1
 458     shift
 459     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 460 }
 461
 462 get_safe(){
 463     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 464 }
 465
 466 pushvar(){
 467     for var in $*; do
 468         eval level=\${${var}_level:=0}
 469         eval ${var}_${level}="\$$var"
 470         eval ${var}_level=$(($level+1))
 471     done
 472 }
 473
 474 popvar(){
 475     for var in $*; do
 476         eval level=\${${var}_level:-0}
 477         test $level = 0 && continue
 478         eval level=$(($level-1))
 479         eval $var="\${${var}_${level}}"
 480         eval ${var}_level=$level
 481         eval unset ${var}_${level}
 482     done
 483 }
 484
 485 enable(){
 486     set_all yes $*
 487 }
 488
 489 disable(){
 490     set_all no $*
 491 }
 492
 493 enable_weak(){
 494     set_weak yes $*
 495 }
 496
 497 disable_weak(){
 498     set_weak no $*
 499 }
 500
 501 enable_safe(){
 502     for var; do
 503         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 504     done
 505 }
 506
 507 disable_safe(){
 508     for var; do
 509         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 510     done
 511 }
 512
 513 do_enable_deep(){
 514     for var; do
 515         enabled $var && continue
 516         eval sel="\$${var}_select"
 517         eval sgs="\$${var}_suggest"
 518         pushvar var sgs
 519         enable_deep $sel
 520         popvar sgs
 521         enable_deep_weak $sgs
 522         popvar var
 523     done
 524 }
 525
 526 enable_deep(){
 527     do_enable_deep $*
 528     enable $*
 529 }
 530
 531 enable_deep_weak(){
 532     do_enable_deep $*
 533     enable_weak $*
 534 }
 535
 536 enabled(){
 537     test "${1#!}" = "$1" && op== || op=!=
 538     eval test "x\$${1#!}" $op "xyes"
 539 }
 540
 541 disabled(){
 542     test "${1#!}" = "$1" && op== || op=!=
 543     eval test "x\$${1#!}" $op "xno"
 544 }
 545
 546 enabled_all(){
 547     for opt; do
 548         enabled $opt || return 1
 549     done
 550 }
 551
 552 disabled_all(){
 553     for opt; do
 554         disabled $opt || return 1
 555     done
 556 }
 557
 558 enabled_any(){
 559     for opt; do
 560         enabled $opt && return 0
 561     done
 562 }
 563
 564 disabled_any(){
 565     for opt; do
 566         disabled $opt && return 0
 567     done
 568     return 1
 569 }
 570
 571 set_default(){
 572     for opt; do
 573         eval : \${$opt:=\$${opt}_default}
 574     done
 575 }
 576
 577 is_in(){
 578     value=$1
 579     shift
 580     for var in $*; do
 581         [ $var = $value ] && return 0
 582     done
 583     return 1
 584 }
 585
 586 do_check_deps(){
 587     for cfg; do
 588         cfg="${cfg#!}"
 589         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 590         disabled ${cfg}_checking && continue
 591         enable ${cfg}_checking
 592         append allopts $cfg
 593
 594         eval dep_all="\$${cfg}_deps"
 595         eval dep_any="\$${cfg}_deps_any"
 596         eval dep_sel="\$${cfg}_select"
 597         eval dep_sgs="\$${cfg}_suggest"
 598         eval dep_ifa="\$${cfg}_if"
 599         eval dep_ifn="\$${cfg}_if_any"
 600
 601         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 602         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 603         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 604
 605         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 606         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 607         enabled_all  $dep_all || disable $cfg
 608         enabled_any  $dep_any || disable $cfg
 609         disabled_any $dep_sel && disable $cfg
 610
 611         if enabled $cfg; then
 612             enable_deep $dep_sel
 613             enable_deep_weak $dep_sgs
 614         fi
 615
 616         disable ${cfg}_checking
 617     done
 618 }
 619
 620 check_deps(){
 621     unset allopts
 622
 623     do_check_deps "$@"
 624
 625     for cfg in $allopts; do
 626         enabled $cfg || continue
 627         eval dep_extralibs="\$${cfg}_extralibs"
 628         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 629     done
 630 }
 631
 632 print_config(){
 633     pfx=$1
 634     files=$2
 635     shift 2
 636     map 'eval echo "$v \${$v:-no}"' "$@" |
 637     awk "BEGIN { split(\"$files\", files) }
 638         {
 639             c = \"$pfx\" toupper(\$1);
 640             v = \$2;
 641             sub(/yes/, 1, v);
 642             sub(/no/,  0, v);
 643             for (f in files) {
 644                 file = files[f];
 645                 if (file ~ /\\.h\$/) {
 646                     printf(\"#define %s %d\\n\", c, v) >>file;
 647                 } else if (file ~ /\\.asm\$/) {
 648                     printf(\"%%define %s %d\\n\", c, v) >>file;
 649                 } else if (file ~ /\\.mak\$/) {
 650                     n = -v ? \"\" : \"!\";
 651                     printf(\"%s%s=yes\\n\", n, c) >>file;
 652                 }
 653             }
 654         }"
 655 }
 656
 657 print_enabled(){
 658     suf=$1
 659     shift
 660     for v; do
 661         enabled $v && printf "%s\n" ${v%$suf};
 662     done
 663 }
 664
 665 append(){
 666     var=$1
 667     shift
 668     eval "$var=\"\$$var $*\""
 669 }
 670
 671 prepend(){
 672     var=$1
 673     shift
 674     eval "$var=\"$* \$$var\""
 675 }
 676
 677 add_cppflags(){
 678     append CPPFLAGS "$@"
 679 }
 680
 681 add_cflags(){
 682     append CFLAGS $($cflags_filter "$@")
 683 }
 684
 685 add_cxxflags(){
 686     append CXXFLAGS $($cflags_filter "$@")
 687 }
 688
 689 add_asflags(){
 690     append ASFLAGS $($asflags_filter "$@")
 691 }
 692
 693 add_ldflags(){
 694     append LDFLAGS $($ldflags_filter "$@")
 695 }
 696
 697 add_extralibs(){
 698     prepend extralibs $($ldflags_filter "$@")
 699 }
 700
 701 add_host_cflags(){
 702     append host_cflags $($host_cflags_filter "$@")
 703 }
 704
 705 add_host_ldflags(){
 706     append host_ldflags $($host_ldflags_filter "$@")
 707 }
 708
 709 add_compat(){
 710     append compat_objs $1
 711     shift
 712     map 'add_cppflags -D$v' "$@"
 713 }
 714
 715 check_cmd(){
 716     log "$@"
 717     "$@" >> $logfile 2>&1
 718 }
 719
 720 cc_o(){
 721     eval printf '%s\\n' $CC_O
 722 }
 723
 724 cc_e(){
 725     eval printf '%s\\n' $CC_E
 726 }
 727
 728 check_cc(){
 729     log check_cc "$@"
 730     cat > $TMPC
 731     log_file $TMPC
 732     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 733 }
 734
 735 check_cxx(){
 736     log check_cxx "$@"
 737     cat > $TMPCPP
 738     log_file $TMPCPP
 739     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 740 }
 741
 742 check_cpp(){
 743     log check_cpp "$@"
 744     cat > $TMPC
 745     log_file $TMPC
 746     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 747 }
 748
 749 as_o(){
 750     eval printf '%s\\n' $AS_O
 751 }
 752
 753 check_as(){
 754     log check_as "$@"
 755     cat > $TMPS
 756     log_file $TMPS
 757     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 758 }
 759
 760 check_inline_asm(){
 761     log check_inline_asm "$@"
 762     name="$1"
 763     code="$2"
 764     shift 2
 765     disable $name
 766     check_cc "$@" <<EOF && enable $name
 767 void foo(void){ __asm__ volatile($code); }
 768 EOF
 769 }
 770
 771 check_insn(){
 772     log check_insn "$@"
 773     check_inline_asm ${1}_inline "\"$2\""
 774     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 775 }
 776
 777 check_yasm(){
 778     log check_yasm "$@"
 779     echo "$1" > $TMPS
 780     log_file $TMPS
 781     shift 1
 782     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
 783 }
 784
 785 ld_o(){
 786     eval printf '%s\\n' $LD_O
 787 }
 788
 789 check_ld(){
 790     log check_ld "$@"
 791     type=$1
 792     shift 1
 793     flags=$(filter_out '-l*' $@)
 794     libs=$(filter '-l*' $@)
 795     check_$type $($cflags_filter $flags) || return
 796     flags=$($ldflags_filter $flags)
 797     libs=$($ldflags_filter $libs)
 798     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 799 }
 800
 801 check_code(){
 802     log check_code "$@"
 803     check=$1
 804     headers=$2
 805     code=$3
 806     shift 3
 807     {
 808         for hdr in $headers; do
 809             echo "#include <$hdr>"
 810         done
 811         echo "int main(void) { $code; return 0; }"
 812     } | check_$check "$@"
 813 }
 814
 815 check_cppflags(){
 816     log check_cppflags "$@"
 817     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 818 int x;
 819 EOF
 820 }
 821
 822 check_cflags(){
 823     log check_cflags "$@"
 824     set -- $($cflags_filter "$@")
 825     check_cc "$@" <<EOF && append CFLAGS "$@"
 826 int x;
 827 EOF
 828 }
 829
 830 check_cxxflags(){
 831     log check_cxxflags "$@"
 832     set -- $($cflags_filter "$@")
 833     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 834 int x;
 835 EOF
 836 }
 837
 838 test_ldflags(){
 839     log test_ldflags "$@"
 840     check_ld "cc" "$@" <<EOF
 841 int main(void){ return 0; }
 842 EOF
 843 }
 844
 845 check_ldflags(){
 846     log check_ldflags "$@"
 847     test_ldflags "$@" && add_ldflags "$@"
 848 }
 849
 850 check_header(){
 851     log check_header "$@"
 852     header=$1
 853     shift
 854     disable_safe $header
 855     check_cpp "$@" <<EOF && enable_safe $header
 856 #include <$header>
 857 int x;
 858 EOF
 859 }
 860
 861 check_func(){
 862     log check_func "$@"
 863     func=$1
 864     shift
 865     disable $func
 866     check_ld "cc" "$@" <<EOF && enable $func
 867 extern int $func();
 868 int main(void){ $func(); }
 869 EOF
 870 }
 871
 872 check_mathfunc(){
 873     log check_mathfunc "$@"
 874     func=$1
 875     narg=$2
 876     shift 2
 877     test $narg = 2 && args="f, g" || args="f"
 878     disable $func
 879     check_ld "cc" "$@" <<EOF && enable $func
 880 #include <math.h>
 881 float foo(float f, float g) { return $func($args); }
 882 int main(void){ return (int) foo; }
 883 EOF
 884 }
 885
 886 check_func_headers(){
 887     log check_func_headers "$@"
 888     headers=$1
 889     funcs=$2
 890     shift 2
 891     {
 892         for hdr in $headers; do
 893             echo "#include <$hdr>"
 894         done
 895         for func in $funcs; do
 896             echo "long check_$func(void) { return (long) $func; }"
 897         done
 898         echo "int main(void) { return 0; }"
 899     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 900 }
 901
 902 check_class_headers_cpp(){
 903     log check_class_headers_cpp "$@"
 904     headers=$1
 905     classes=$2
 906     shift 2
 907     {
 908         for hdr in $headers; do
 909             echo "#include <$hdr>"
 910         done
 911         echo "int main(void) { "
 912         i=1
 913         for class in $classes; do
 914             echo "$class obj$i;"
 915             i=$(expr $i + 1)
 916         done
 917         echo "return 0; }"
 918     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 919 }
 920
 921 check_cpp_condition(){
 922     log check_cpp_condition "$@"
 923     header=$1
 924     condition=$2
 925     shift 2
 926     check_cpp "$@" <<EOF
 927 #include <$header>
 928 #if !($condition)
 929 #error "unsatisfied condition: $condition"
 930 #endif
 931 EOF
 932 }
 933
 934 check_lib(){
 935     log check_lib "$@"
 936     header="$1"
 937     func="$2"
 938     shift 2
 939     check_header $header && check_func $func "$@" && add_extralibs "$@"
 940 }
 941
 942 check_lib2(){
 943     log check_lib2 "$@"
 944     headers="$1"
 945     funcs="$2"
 946     shift 2
 947     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 948 }
 949
 950 check_lib_cpp(){
 951     log check_lib_cpp "$@"
 952     headers="$1"
 953     classes="$2"
 954     shift 2
 955     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 956 }
 957
 958 check_pkg_config(){
 959     log check_pkg_config "$@"
 960     pkg="$1"
 961     headers="$2"
 962     funcs="$3"
 963     shift 3
 964     $pkg_config --exists $pkg 2>/dev/null || return
 965     pkg_cflags=$($pkg_config --cflags $pkg)
 966     pkg_libs=$($pkg_config --libs $pkg)
 967     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 968         set_safe ${pkg}_cflags $pkg_cflags   &&
 969         set_safe ${pkg}_libs   $pkg_libs
 970 }
 971
 972 check_exec(){
 973     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 974 }
 975
 976 check_exec_crash(){
 977     code=$(cat)
 978
 979     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 980     # are safe but may not be available everywhere.  Thus we use
 981     # raise(SIGTERM) instead.  The check is run in a subshell so we
 982     # can redirect the "Terminated" message from the shell.  SIGBUS
 983     # is not defined by standard C so it is used conditionally.
 984
 985     (check_exec "$@") >> $logfile 2>&1 <<EOF
 986 #include <signal.h>
 987 static void sighandler(int sig){
 988     raise(SIGTERM);
 989 }
 990 int func(void){
 991     $code
 992 }
 993 int (*func_ptr)(void) = func;
 994 int main(void){
 995     signal(SIGILL, sighandler);
 996     signal(SIGFPE, sighandler);
 997     signal(SIGSEGV, sighandler);
 998 #ifdef SIGBUS
 999     signal(SIGBUS, sighandler);
1000 #endif
1001     return func_ptr();
1002 }
1003 EOF
1004 }
1005
1006 check_type(){
1007     log check_type "$@"
1008     headers=$1
1009     type=$2
1010     shift 2
1011     disable_safe "$type"
1012     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1013 }
1014
1015 check_struct(){
1016     log check_type "$@"
1017     headers=$1
1018     struct=$2
1019     member=$3
1020     shift 3
1021     disable_safe "${struct}_${member}"
1022     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1023         enable_safe "${struct}_${member}"
1024 }
1025
1026 require(){
1027     name="$1"
1028     header="$2"
1029     func="$3"
1030     shift 3
1031     check_lib $header $func "$@" || die "ERROR: $name not found"
1032 }
1033
1034 require2(){
1035     name="$1"
1036     headers="$2"
1037     func="$3"
1038     shift 3
1039     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1040 }
1041
1042 require_cpp(){
1043     name="$1"
1044     headers="$2"
1045     classes="$3"
1046     shift 3
1047     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1048 }
1049
1050 require_pkg_config(){
1051     pkg="$1"
1052     check_pkg_config "$@" || die "ERROR: $pkg not found"
1053     add_cflags    $(get_safe ${pkg}_cflags)
1054     add_extralibs $(get_safe ${pkg}_libs)
1055 }
1056
1057 hostcc_o(){
1058     eval printf '%s\\n' $HOSTCC_O
1059 }
1060
1061 check_host_cc(){
1062     log check_host_cc "$@"
1063     cat > $TMPC
1064     log_file $TMPC
1065     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1066 }
1067
1068 check_host_cflags(){
1069     log check_host_cflags "$@"
1070     set -- $($host_cflags_filter "$@")
1071     check_host_cc "$@" <<EOF && append host_cflags "$@"
1072 int x;
1073 EOF
1074 }
1075
1076 apply(){
1077     file=$1
1078     shift
1079     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1080 }
1081
1082 cp_if_changed(){
1083     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1084     mkdir -p "$(dirname $2)"
1085     $cp_f "$1" "$2"
1086 }
1087
1088 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1089 # system-dependent things.
1090
1091 COMPONENT_LIST="
1092     bsfs
1093     decoders
1094     demuxers
1095     encoders
1096     filters
1097     hwaccels
1098     indevs
1099     muxers
1100     outdevs
1101     parsers
1102     protocols
1103 "
1104
1105 DOCUMENT_LIST="
1106     doc
1107     htmlpages
1108     manpages
1109     podpages
1110     txtpages
1111 "
1112
1113 LIBRARY_LIST="
1114     avcodec
1115     avdevice
1116     avfilter
1117     avformat
1118     avresample
1119     avutil
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     postproc
1202     rdft
1203     runtime_cpudetect
1204     safe_bitstream_reader
1205     shared
1206     small
1207     sram
1208     static
1209     swscale_alpha
1210     thumb
1211     vaapi
1212     vda
1213     vdpau
1214     version3
1215     xmm_clobber_test
1216     x11grab
1217     zlib
1218 "
1219
1220 THREADS_LIST='
1221     pthreads
1222     w32threads
1223     os2threads
1224 '
1225
1226 ARCH_LIST='
1227     aarch64
1228     alpha
1229     arm
1230     avr32
1231     avr32_ap
1232     avr32_uc
1233     bfin
1234     ia64
1235     m68k
1236     mips
1237     mips64
1238     parisc
1239     ppc
1240     ppc64
1241     s390
1242     sh4
1243     sparc
1244     sparc64
1245     tilegx
1246     tilepro
1247     tomi
1248     x86
1249     x86_32
1250     x86_64
1251 '
1252
1253 ARCH_EXT_LIST_ARM='
1254     armv5te
1255     armv6
1256     armv6t2
1257     neon
1258     vfp
1259     vfpv3
1260 '
1261
1262 ARCH_EXT_LIST_X86='
1263     amd3dnow
1264     amd3dnowext
1265     avx
1266     fma4
1267     mmx
1268     mmxext
1269     sse
1270     sse2
1271     sse3
1272     sse4
1273     sse42
1274     ssse3
1275 '
1276
1277 ARCH_EXT_LIST="
1278     $ARCH_EXT_LIST_ARM
1279     $ARCH_EXT_LIST_X86
1280     altivec
1281     ppc4xx
1282     vis
1283     mipsfpu
1284     mips32r2
1285     mipsdspr1
1286     mipsdspr2
1287 "
1288
1289 HAVE_LIST_CMDLINE='
1290     inline_asm
1291     symver
1292     yasm
1293 '
1294
1295 HAVE_LIST_PUB='
1296     bigendian
1297     fast_unaligned
1298     incompatible_fork_abi
1299 '
1300
1301 MATH_FUNCS="
1302     atanf
1303     atan2f
1304     cbrtf
1305     cosf
1306     exp2
1307     exp2f
1308     expf
1309     isinf
1310     isnan
1311     ldexpf
1312     llrint
1313     llrintf
1314     log2
1315     log2f
1316     log10f
1317     lrint
1318     lrintf
1319     powf
1320     rint
1321     round
1322     roundf
1323     sinf
1324     trunc
1325     truncf
1326 "
1327
1328 HAVE_LIST="
1329     $ARCH_EXT_LIST
1330     $(add_suffix _external $ARCH_EXT_LIST)
1331     $(add_suffix _inline   $ARCH_EXT_LIST)
1332     $HAVE_LIST_CMDLINE
1333     $HAVE_LIST_PUB
1334     $THREADS_LIST
1335     $MATH_FUNCS
1336     access
1337     aligned_malloc
1338     aligned_stack
1339     alsa_asoundlib_h
1340     altivec_h
1341     arpa_inet_h
1342     asm_mod_q
1343     asm_mod_y
1344     asm_types_h
1345     attribute_may_alias
1346     attribute_packed
1347     clock_gettime
1348     closesocket
1349     cmov
1350     CommandLineToArgvW
1351     cpunop
1352     CryptGenRandom
1353     dcbzl
1354     dev_bktr_ioctl_bt848_h
1355     dev_bktr_ioctl_meteor_h
1356     dev_ic_bt8xx_h
1357     dev_video_bktr_ioctl_bt848_h
1358     dev_video_meteor_ioctl_meteor_h
1359     direct_h
1360     dlfcn_h
1361     dlopen
1362     dos_paths
1363     dxva_h
1364     ebp_available
1365     ebx_available
1366     fast_64bit
1367     fast_clz
1368     fast_cmov
1369     fcntl
1370     fork
1371     getaddrinfo
1372     gethrtime
1373     getopt
1374     GetProcessAffinityMask
1375     GetProcessMemoryInfo
1376     GetProcessTimes
1377     GetSystemTimeAsFileTime
1378     getrusage
1379     getservbyport
1380     gettimeofday
1381     glob
1382     gnu_as
1383     ibm_asm
1384     inet_aton
1385     io_h
1386     isatty
1387     jack_port_get_latency_range
1388     kbhit
1389     ldbrx
1390     libdc1394_1
1391     libdc1394_2
1392     local_aligned_16
1393     local_aligned_8
1394     localtime_r
1395     loongson
1396     lzo1x_999_compress
1397     machine_ioctl_bt848_h
1398     machine_ioctl_meteor_h
1399     makeinfo
1400     malloc_h
1401     MapViewOfFile
1402     memalign
1403     mkstemp
1404     mm_empty
1405     mmap
1406     mprotect
1407     msvcrt
1408     nanosleep
1409     openjpeg_1_5_openjpeg_h
1410     PeekNamedPipe
1411     perl
1412     pod2man
1413     poll_h
1414     posix_memalign
1415     pthread_cancel
1416     rdtsc
1417     rsync_contimeout
1418     sched_getaffinity
1419     sdl
1420     sdl_video_size
1421     SetConsoleTextAttribute
1422     setmode
1423     setrlimit
1424     Sleep
1425     sndio_h
1426     socklen_t
1427     soundcard_h
1428     strerror_r
1429     struct_addrinfo
1430     struct_group_source_req
1431     struct_ip_mreq_source
1432     struct_ipv6_mreq
1433     struct_pollfd
1434     struct_rusage_ru_maxrss
1435     struct_sctp_event_subscribe
1436     struct_sockaddr_in6
1437     struct_sockaddr_sa_len
1438     struct_sockaddr_storage
1439     struct_v4l2_frmivalenum_discrete
1440     symver_asm_label
1441     symver_gnu_asm
1442     sysconf
1443     sysctl
1444     sys_mman_h
1445     sys_param_h
1446     sys_resource_h
1447     sys_select_h
1448     sys_soundcard_h
1449     sys_time_h
1450     sys_videoio_h
1451     termios_h
1452     texi2html
1453     threads
1454     unistd_h
1455     usleep
1456     vfp_args
1457     VirtualAlloc
1458     windows_h
1459     winsock2_h
1460     xform_asm
1461     xmm_clobbers
1462 "
1463
1464 # options emitted with CONFIG_ prefix but not available on the command line
1465 CONFIG_EXTRA="
1466     aandcttables
1467     ac3dsp
1468     error_resilience
1469     gcrypt
1470     golomb
1471     gplv3
1472     h264chroma
1473     h264dsp
1474     h264pred
1475     h264qpel
1476     huffman
1477     lgplv3
1478     lpc
1479     mpegaudio
1480     mpegaudiodsp
1481     mpegvideo
1482     mpegvideoenc
1483     nettle
1484     rangecoder
1485     rtpdec
1486     sinewin
1487     videodsp
1488     vp3dsp
1489 "
1490
1491 CMDLINE_SELECT="
1492     $ARCH_EXT_LIST
1493     $CONFIG_LIST
1494     $HAVE_LIST_CMDLINE
1495     $THREADS_LIST
1496     asm
1497     coverage
1498     cross_compile
1499     debug
1500     extra_warnings
1501     logging
1502     lto
1503     optimizations
1504     stripping
1505 "
1506
1507 PATHS_LIST='
1508     bindir
1509     datadir
1510     incdir
1511     libdir
1512     mandir
1513     prefix
1514     shlibdir
1515 '
1516
1517 CMDLINE_SET="
1518     $PATHS_LIST
1519     ar
1520     arch
1521     as
1522     assert_level
1523     build_suffix
1524     cc
1525     cpu
1526     cross_prefix
1527     cxx
1528     dep_cc
1529     extra_version
1530     host_cc
1531     host_cflags
1532     host_ld
1533     host_ldflags
1534     host_libs
1535     host_os
1536     install
1537     ld
1538     logfile
1539     malloc_prefix
1540     nm
1541     optflags
1542     pkg_config
1543     postproc_version
1544     progs_suffix
1545     random_seed
1546     samples
1547     strip
1548     sysinclude
1549     sysroot
1550     target_exec
1551     target_os
1552     target_path
1553     toolchain
1554     valgrind
1555     yasmexe
1556 "
1557
1558 CMDLINE_APPEND="
1559     extra_cflags
1560     extra_cxxflags
1561 "
1562
1563 # code dependency declarations
1564
1565 # architecture extensions
1566
1567 armv5te_deps="arm"
1568 armv6_deps="arm"
1569 armv6t2_deps="arm"
1570 neon_deps="arm"
1571 vfp_deps="arm"
1572 vfpv3_deps="vfp"
1573
1574 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1575
1576 mipsfpu_deps="mips"
1577 mips32r2_deps="mips"
1578 mipsdspr1_deps="mips"
1579 mipsdspr2_deps="mips"
1580
1581 altivec_deps="ppc"
1582 ppc4xx_deps="ppc"
1583
1584 vis_deps="sparc"
1585
1586 x86_64_suggest="cmov fast_cmov"
1587
1588 amd3dnow_deps="mmx"
1589 amd3dnowext_deps="amd3dnow"
1590 mmx_deps="x86"
1591 mmxext_deps="mmx"
1592 sse_deps="mmxext"
1593 sse2_deps="sse"
1594 sse3_deps="sse2"
1595 ssse3_deps="sse3"
1596 sse4_deps="ssse3"
1597 sse42_deps="sse4"
1598 avx_deps="sse42"
1599 fma4_deps="avx"
1600
1601 mmx_external_deps="yasm"
1602 mmx_inline_deps="inline_asm"
1603 mmx_suggest="mmx_external mmx_inline"
1604
1605 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1606     eval dep=\$${ext}_deps
1607     eval ${ext}_external_deps='"${dep}_external"'
1608     eval ${ext}_inline_deps='"${dep}_inline"'
1609     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1610 done
1611
1612 aligned_stack_if_any="ppc x86"
1613 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1614 fast_clz_if_any="alpha avr32 mips ppc x86"
1615 fast_unaligned_if_any="ppc x86"
1616
1617 inline_asm_deps="!tms470"
1618 need_memalign="altivec neon sse"
1619
1620 symver_if_any="symver_asm_label symver_gnu_asm"
1621
1622 log2_deps="!msvcrt"
1623
1624 # subsystems
1625 dct_select="rdft"
1626 mdct_select="fft"
1627 rdft_select="fft"
1628 mpegaudio_select="mpegaudiodsp"
1629 mpegaudiodsp_select="dct"
1630 mpegvideo_select="videodsp"
1631 mpegvideoenc_select="mpegvideo"
1632
1633 # decoders / encoders
1634 aac_decoder_select="mdct sinewin"
1635 aac_encoder_select="mdct sinewin"
1636 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1637 ac3_decoder_select="mdct ac3dsp ac3_parser"
1638 ac3_encoder_select="mdct ac3dsp"
1639 ac3_fixed_encoder_select="mdct ac3dsp"
1640 alac_encoder_select="lpc"
1641 amrnb_decoder_select="lsp"
1642 amrwb_decoder_select="lsp"
1643 amv_encoder_select="aandcttables"
1644 atrac1_decoder_select="mdct sinewin"
1645 atrac3_decoder_select="mdct"
1646 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1647 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1648 cavs_decoder_select="golomb mpegvideo"
1649 comfortnoise_encoder_select="lpc"
1650 cook_decoder_select="mdct sinewin"
1651 cscd_decoder_select="lzo"
1652 cscd_decoder_suggest="zlib"
1653 dca_decoder_select="mdct"
1654 dirac_decoder_select="dwt golomb"
1655 dnxhd_encoder_select="aandcttables mpegvideoenc"
1656 dxa_decoder_select="zlib"
1657 eac3_decoder_select="ac3_decoder"
1658 eac3_encoder_select="ac3_encoder"
1659 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1660 eatgq_decoder_select="aandcttables"
1661 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1662 exr_decoder_select="zlib"
1663 ffv1_decoder_select="golomb rangecoder"
1664 ffv1_encoder_select="rangecoder"
1665 ffvhuff_encoder_select="huffman"
1666 flac_decoder_select="golomb"
1667 flac_encoder_select="golomb lpc"
1668 flashsv_decoder_select="zlib"
1669 flashsv_encoder_select="zlib"
1670 flashsv2_encoder_select="zlib"
1671 flashsv2_decoder_select="zlib"
1672 flv_decoder_select="h263_decoder"
1673 flv_encoder_select="h263_encoder"
1674 fraps_decoder_select="huffman"
1675 h261_decoder_select="error_resilience mpegvideo"
1676 h261_encoder_select="aandcttables mpegvideoenc"
1677 h263_decoder_select="error_resilience h263_parser mpegvideo"
1678 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1679 h263i_decoder_select="h263_decoder"
1680 h263p_encoder_select="h263_encoder"
1681 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1682 huffyuv_encoder_select="huffman"
1683 iac_decoder_select="fft mdct sinewin"
1684 imc_decoder_select="fft mdct sinewin"
1685 jpegls_decoder_select="golomb"
1686 jpegls_encoder_select="golomb"
1687 ljpeg_encoder_select="aandcttables mpegvideoenc"
1688 loco_decoder_select="golomb"
1689 mdec_decoder_select="error_resilience mpegvideo"
1690 mjpeg_encoder_select="aandcttables mpegvideoenc"
1691 mlp_decoder_select="mlp_parser"
1692 mp1_decoder_select="mpegaudio"
1693 mp1float_decoder_select="mpegaudio"
1694 mp2_decoder_select="mpegaudio"
1695 mp2float_decoder_select="mpegaudio"
1696 mp3_decoder_select="mpegaudio"
1697 mp3adu_decoder_select="mpegaudio"
1698 mp3adufloat_decoder_select="mpegaudio"
1699 mp3float_decoder_select="mpegaudio"
1700 mp3on4_decoder_select="mpegaudio"
1701 mp3on4float_decoder_select="mpegaudio"
1702 mpc7_decoder_select="mpegaudiodsp"
1703 mpc8_decoder_select="mpegaudiodsp"
1704 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1705 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1706 mpeg1video_decoder_select="error_resilience mpegvideo"
1707 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1708 mpeg2video_decoder_select="error_resilience mpegvideo"
1709 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1710 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1711 mpeg4_encoder_select="h263_encoder"
1712 msmpeg4v1_decoder_select="h263_decoder"
1713 msmpeg4v1_encoder_select="h263_encoder"
1714 msmpeg4v2_decoder_select="h263_decoder"
1715 msmpeg4v2_encoder_select="h263_encoder"
1716 msmpeg4v3_decoder_select="h263_decoder"
1717 msmpeg4v3_encoder_select="h263_encoder"
1718 mss2_decoder_select="vc1_decoder"
1719 nellymoser_decoder_select="mdct sinewin"
1720 nellymoser_encoder_select="mdct sinewin"
1721 nuv_decoder_select="lzo"
1722 png_decoder_select="zlib"
1723 png_encoder_select="zlib"
1724 qcelp_decoder_select="lsp"
1725 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1726 ra_144_encoder_select="lpc"
1727 ralf_decoder_select="golomb"
1728 rv10_decoder_select="h263_decoder"
1729 rv10_encoder_select="h263_encoder"
1730 rv20_decoder_select="h263_decoder"
1731 rv20_encoder_select="h263_encoder"
1732 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1733 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1734 shorten_decoder_select="golomb"
1735 sipr_decoder_select="lsp"
1736 snow_decoder_select="dwt rangecoder"
1737 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1738 sonic_decoder_select="golomb"
1739 sonic_encoder_select="golomb"
1740 sonic_ls_encoder_select="golomb"
1741 svq1_decoder_select="error_resilience mpegvideo"
1742 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1743 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1744 svq3_decoder_suggest="zlib"
1745 theora_decoder_select="vp3_decoder"
1746 tiff_decoder_suggest="zlib"
1747 tiff_encoder_suggest="zlib"
1748 truehd_decoder_select="mlp_parser"
1749 tscc_decoder_select="zlib"
1750 twinvq_decoder_select="mdct lsp sinewin"
1751 utvideo_encoder_select="huffman"
1752 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1753 vc1image_decoder_select="vc1_decoder"
1754 vorbis_decoder_select="mdct"
1755 vorbis_encoder_select="mdct"
1756 vp3_decoder_select="vp3dsp videodsp"
1757 vp5_decoder_select="vp3dsp videodsp"
1758 vp6_decoder_select="huffman vp3dsp videodsp"
1759 vp6a_decoder_select="vp6_decoder"
1760 vp6f_decoder_select="vp6_decoder"
1761 vp8_decoder_select="h264pred videodsp"
1762 wmapro_decoder_select="mdct sinewin"
1763 wmav1_decoder_select="mdct sinewin"
1764 wmav1_encoder_select="mdct sinewin"
1765 wmav2_decoder_select="mdct sinewin"
1766 wmav2_encoder_select="mdct sinewin"
1767 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1768 wmv1_decoder_select="h263_decoder"
1769 wmv1_encoder_select="h263_encoder"
1770 wmv2_decoder_select="h263_decoder"
1771 wmv2_encoder_select="h263_encoder"
1772 wmv3_decoder_select="vc1_decoder"
1773 wmv3image_decoder_select="wmv3_decoder"
1774 zerocodec_decoder_select="zlib"
1775 zlib_decoder_select="zlib"
1776 zlib_encoder_select="zlib"
1777 zmbv_decoder_select="zlib"
1778 zmbv_encoder_select="zlib"
1779
1780 # hardware accelerators
1781 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1782 vaapi_deps="va_va_h"
1783 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1784 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1785
1786 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1787 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1788 h264_dxva2_hwaccel_deps="dxva2api_h"
1789 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1790 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1791 h264_vda_decoder_select="vda h264_parser h264_decoder"
1792 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1793 h264_vda_hwaccel_select="vda h264_decoder"
1794 h264_vdpau_decoder_select="vdpau h264_decoder"
1795 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1796 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1797 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1798 mpeg2_crystalhd_decoder_select="crystalhd"
1799 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1800 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1801 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1802 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1803 mpeg4_crystalhd_decoder_select="crystalhd"
1804 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1805 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1806 msmpeg4_crystalhd_decoder_select="crystalhd"
1807 vc1_crystalhd_decoder_select="crystalhd"
1808 vc1_dxva2_hwaccel_deps="dxva2api_h"
1809 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1810 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1811 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1812 wmv3_crystalhd_decoder_select="crystalhd"
1813 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1814 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1815 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1816
1817 # parsers
1818 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1819 mpeg4video_parser_select="error_resilience mpegvideo"
1820 mpegvideo_parser_select="error_resilience mpegvideo"
1821 vc1_parser_select="error_resilience mpegvideo"
1822
1823 # external libraries
1824 libaacplus_encoder_deps="libaacplus"
1825 libcelt_decoder_deps="libcelt"
1826 libfaac_encoder_deps="libfaac"
1827 libfdk_aac_encoder_deps="libfdk_aac"
1828 libgsm_decoder_deps="libgsm"
1829 libgsm_encoder_deps="libgsm"
1830 libgsm_ms_decoder_deps="libgsm"
1831 libgsm_ms_encoder_deps="libgsm"
1832 libilbc_decoder_deps="libilbc"
1833 libilbc_encoder_deps="libilbc"
1834 libmodplug_demuxer_deps="libmodplug"
1835 libmp3lame_encoder_deps="libmp3lame"
1836 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1837 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1838 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1839 libopenjpeg_decoder_deps="libopenjpeg"
1840 libopenjpeg_encoder_deps="libopenjpeg"
1841 libopus_decoder_deps="libopus"
1842 libopus_encoder_deps="libopus"
1843 libschroedinger_decoder_deps="libschroedinger"
1844 libschroedinger_encoder_deps="libschroedinger"
1845 libspeex_decoder_deps="libspeex"
1846 libspeex_encoder_deps="libspeex"
1847 libstagefright_h264_decoder_deps="libstagefright_h264"
1848 libtheora_encoder_deps="libtheora"
1849 libtwolame_encoder_deps="libtwolame"
1850 libvo_aacenc_encoder_deps="libvo_aacenc"
1851 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1852 libvorbis_decoder_deps="libvorbis"
1853 libvorbis_encoder_deps="libvorbis"
1854 libvpx_decoder_deps="libvpx"
1855 libvpx_encoder_deps="libvpx"
1856 libx264_encoder_deps="libx264"
1857 libx264rgb_encoder_deps="libx264"
1858 libxavs_encoder_deps="libxavs"
1859 libxvid_encoder_deps="libxvid"
1860 libutvideo_decoder_deps="libutvideo"
1861 libutvideo_encoder_deps="libutvideo"
1862
1863 # demuxers / muxers
1864 ac3_demuxer_select="ac3_parser"
1865 asf_stream_muxer_select="asf_muxer"
1866 avisynth_demuxer_deps="avisynth"
1867 dirac_demuxer_select="dirac_parser"
1868 dts_demuxer_select="dca_parser"
1869 dtshd_demuxer_select="dca_parser"
1870 eac3_demuxer_select="ac3_parser"
1871 f4v_muxer_select="mov_muxer"
1872 flac_demuxer_select="flac_parser"
1873 ipod_muxer_select="mov_muxer"
1874 ismv_muxer_select="mov_muxer"
1875 libnut_demuxer_deps="libnut"
1876 libnut_muxer_deps="libnut"
1877 matroska_audio_muxer_select="matroska_muxer"
1878 matroska_demuxer_suggest="bzlib lzo zlib"
1879 mov_demuxer_suggest="zlib"
1880 mp3_demuxer_select="mpegaudio_parser"
1881 mp4_muxer_select="mov_muxer"
1882 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1883 mpegtsraw_demuxer_select="mpegts_demuxer"
1884 mxf_d10_muxer_select="mxf_muxer"
1885 ogg_demuxer_select="golomb"
1886 psp_muxer_select="mov_muxer"
1887 rtp_demuxer_select="sdp_demuxer"
1888 rtp_muxer_select="mpegvideo"
1889 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1890 rtsp_demuxer_select="http_protocol rtpdec"
1891 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1892 sap_demuxer_select="sdp_demuxer"
1893 sap_muxer_select="rtp_muxer rtp_protocol"
1894 sdp_demuxer_select="rtpdec"
1895 smoothstreaming_muxer_select="ismv_muxer"
1896 spdif_muxer_select="aac_parser"
1897 tak_demuxer_select="tak_parser"
1898 tg2_muxer_select="mov_muxer"
1899 tgp_muxer_select="mov_muxer"
1900 vobsub_demuxer_select="mpegps_demuxer"
1901 w64_demuxer_deps="wav_demuxer"
1902
1903 # indevs / outdevs
1904 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1905 alsa_outdev_deps="alsa_asoundlib_h"
1906 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1907 caca_outdev_deps="libcaca"
1908 dshow_indev_deps="IBaseFilter"
1909 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1910 dv1394_indev_deps="dv1394 dv_demuxer"
1911 fbdev_indev_deps="linux_fb_h"
1912 iec61883_indev_deps="libiec61883"
1913 jack_indev_deps="jack_jack_h sem_timedwait"
1914 lavfi_indev_deps="avfilter"
1915 libcdio_indev_deps="libcdio"
1916 libdc1394_indev_deps="libdc1394"
1917 libv4l2_indev_deps="libv4l2"
1918 openal_indev_deps="openal"
1919 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1920 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1921 pulse_indev_deps="libpulse"
1922 sdl_outdev_deps="sdl"
1923 sndio_indev_deps="sndio_h"
1924 sndio_outdev_deps="sndio_h"
1925 v4l_indev_deps="linux_videodev_h"
1926 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1927 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1928 vfwcap_indev_extralibs="-lavicap32"
1929 x11grab_indev_deps="x11grab"
1930
1931 # protocols
1932 bluray_protocol_deps="libbluray"
1933 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1934 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1935 ffrtmpcrypt_protocol_select="tcp_protocol"
1936 ffrtmphttp_protocol_deps="!librtmp_protocol"
1937 ffrtmphttp_protocol_select="http_protocol"
1938 gopher_protocol_select="network"
1939 httpproxy_protocol_select="tcp_protocol"
1940 http_protocol_select="tcp_protocol"
1941 https_protocol_select="tls_protocol"
1942 librtmp_protocol_deps="librtmp"
1943 librtmpe_protocol_deps="librtmp"
1944 librtmps_protocol_deps="librtmp"
1945 librtmpt_protocol_deps="librtmp"
1946 librtmpte_protocol_deps="librtmp"
1947 mmsh_protocol_select="http_protocol"
1948 mmst_protocol_select="network"
1949 rtmp_protocol_deps="!librtmp_protocol"
1950 rtmp_protocol_select="tcp_protocol"
1951 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1952 rtmps_protocol_deps="!librtmp_protocol"
1953 rtmps_protocol_select="tls_protocol"
1954 rtmpt_protocol_select="ffrtmphttp_protocol"
1955 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1956 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1957 rtp_protocol_select="udp_protocol"
1958 sctp_protocol_deps="struct_sctp_event_subscribe"
1959 sctp_protocol_select="network"
1960 tcp_protocol_select="network"
1961 tls_protocol_deps_any="openssl gnutls"
1962 tls_protocol_select="tcp_protocol"
1963 udp_protocol_select="network"
1964
1965 # filters
1966 aconvert_filter_deps="swresample"
1967 amovie_filter_deps="avcodec avformat"
1968 aresample_filter_deps="swresample"
1969 ass_filter_deps="libass"
1970 asyncts_filter_deps="avresample"
1971 atempo_filter_deps="avcodec rdft"
1972 blackframe_filter_deps="gpl"
1973 boxblur_filter_deps="gpl"
1974 colormatrix_filter_deps="gpl"
1975 cropdetect_filter_deps="gpl"
1976 decimate_filter_deps="gpl avcodec"
1977 delogo_filter_deps="gpl"
1978 deshake_filter_deps="avcodec"
1979 drawtext_filter_deps="libfreetype"
1980 ebur128_filter_deps="gpl"
1981 flite_filter_deps="libflite"
1982 frei0r_filter_deps="frei0r dlopen"
1983 frei0r_filter_extralibs='$ldl'
1984 frei0r_src_filter_deps="frei0r dlopen"
1985 frei0r_src_filter_extralibs='$ldl'
1986 geq_filter_deps="gpl"
1987 hqdn3d_filter_deps="gpl"
1988 hue_filter_deps="gpl"
1989 movie_filter_deps="avcodec avformat"
1990 mp_filter_deps="gpl avcodec swscale inline_asm"
1991 mptestsrc_filter_deps="gpl"
1992 negate_filter_deps="lut_filter"
1993 resample_filter_deps="avresample"
1994 ocv_filter_deps="libopencv"
1995 pan_filter_deps="swresample"
1996 pp_filter_deps="gpl postproc"
1997 removelogo_filter_deps="avcodec avformat swscale"
1998 scale_filter_deps="swscale"
1999 smartblur_filter_deps="gpl swscale"
2000 showspectrum_filter_deps="avcodec rdft"
2001 subtitles_filter_deps="avformat avcodec libass"
2002 super2xsai_filter_deps="gpl"
2003 tinterlace_filter_deps="gpl"
2004 yadif_filter_deps="gpl"
2005 pixfmts_super2xsai_test_deps="super2xsai_filter"
2006 tinterlace_merge_test_deps="tinterlace_filter"
2007 tinterlace_pad_test_deps="tinterlace_filter"
2008
2009 # libraries
2010 avcodec_deps="avutil"
2011 avdevice_deps="avutil avcodec avformat"
2012 avfilter_deps="avutil"
2013 avformat_deps="avutil avcodec"
2014 avresample_deps="avutil"
2015 postproc_deps="gpl"
2016 swscale_deps="avutil"
2017
2018 # programs
2019 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2020 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2021                setpts_filter null_filter anull_filter ffabuffersink_filter"
2022 ffplay_deps="avcodec avformat swscale swresample sdl"
2023 ffplay_select="ffbuffersink_filter rdft crop_filter"
2024 ffprobe_deps="avcodec avformat"
2025 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2026 ffserver_extralibs='$ldl'
2027
2028 # documentation
2029 podpages_deps="perl"
2030 manpages_deps="perl pod2man"
2031 htmlpages_deps="texi2html"
2032 txtpages_deps="makeinfo"
2033 doc_deps_any="manpages htmlpages podpages txtpages"
2034
2035 # default parameters
2036
2037 logfile="config.log"
2038
2039 # installation paths
2040 prefix_default="/usr/local"
2041 bindir_default='${prefix}/bin'
2042 datadir_default='${prefix}/share/ffmpeg'
2043 incdir_default='${prefix}/include'
2044 libdir_default='${prefix}/lib'
2045 mandir_default='${prefix}/share/man'
2046 shlibdir_default="$libdir_default"
2047 postproc_version_default="current"
2048
2049 # toolchain
2050 ar_default="ar"
2051 cc_default="gcc"
2052 cxx_default="g++"
2053 host_cc_default="gcc"
2054 cp_f="cp -f"
2055 install="install"
2056 ln_s="ln -sf"
2057 nm_default="nm -g"
2058 objformat="elf"
2059 pkg_config_default=pkg-config
2060 ranlib="ranlib"
2061 strip_default="strip"
2062 yasmexe_default="yasm"
2063
2064 nogas=":"
2065
2066 # machine
2067 arch_default=$(uname -m)
2068 cpu="generic"
2069
2070 # OS
2071 target_os_default=$(tolower $(uname -s))
2072 host_os=$target_os_default
2073
2074 # alternative libpostproc version
2075 ALT_PP_VER_MAJOR=51
2076 ALT_PP_VER_MINOR=2
2077 ALT_PP_VER_MICRO=101
2078 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
2079
2080 # configurable options
2081 enable $PROGRAM_LIST
2082 enable $DOCUMENT_LIST
2083 enable $(filter_out avresample $LIBRARY_LIST)
2084 enable postproc
2085 enable stripping
2086
2087 enable asm
2088 enable debug
2089 enable doc
2090 enable optimizations
2091 enable runtime_cpudetect
2092 enable safe_bitstream_reader
2093 enable static
2094 enable swscale_alpha
2095
2096 # build settings
2097 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2098 FFSERVERLDFLAGS=-Wl,-E
2099 LIBPREF="lib"
2100 LIBSUF=".a"
2101 FULLNAME='$(NAME)$(BUILDSUF)'
2102 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2103 SLIBPREF="lib"
2104 SLIBSUF=".so"
2105 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2106 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2107 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2108 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2109 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2110 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2111
2112 asflags_filter=echo
2113 cflags_filter=echo
2114 ldflags_filter=echo
2115
2116 AS_C='-c'
2117 AS_O='-o $@'
2118 CC_C='-c'
2119 CC_E='-E -o $@'
2120 CC_O='-o $@'
2121 CXX_C='-c'
2122 CXX_O='-o $@'
2123 LD_O='-o $@'
2124 LD_LIB='-l%'
2125 LD_PATH='-L'
2126 HOSTCC_C='-c'
2127 HOSTCC_O='-o $@'
2128 HOSTLD_O='-o $@'
2129
2130 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2131 host_libs='-lm'
2132 host_cflags_filter=echo
2133 host_ldflags_filter=echo
2134
2135 target_path='$(CURDIR)'
2136
2137 # since the object filename is not given with the -MM flag, the compiler
2138 # is only able to print the basename, and we must add the path ourselves
2139 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2140 DEPFLAGS='-MM'
2141
2142 # find source path
2143 if test -f configure; then
2144     source_path=.
2145 else
2146     source_path=$(cd $(dirname "$0"); pwd)
2147     echo "$source_path" | grep -q '[[:blank:]]' &&
2148         die "Out of tree builds are impossible with whitespace in source path."
2149     test -e "$source_path/config.h" &&
2150         die "Out of tree builds are impossible with config.h in source dir."
2151 fi
2152
2153 for v in "$@"; do
2154     r=${v#*=}
2155     l=${v%"$r"}
2156     r=$(sh_quote "$r")
2157     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2158 done
2159
2160 find_things(){
2161     thing=$1
2162     pattern=$2
2163     file=$source_path/$3
2164     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2165 }
2166
2167 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2168 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2169 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2170 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2171 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2172 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2173 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2174 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2175 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2176 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2177 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2178
2179 ALL_COMPONENTS="
2180     $BSF_LIST
2181     $DECODER_LIST
2182     $DEMUXER_LIST
2183     $ENCODER_LIST
2184     $FILTER_LIST
2185     $HWACCEL_LIST
2186     $INDEV_LIST
2187     $MUXER_LIST
2188     $OUTDEV_LIST
2189     $PARSER_LIST
2190     $PROTOCOL_LIST
2191 "
2192
2193 for n in $COMPONENT_LIST; do
2194     v=$(toupper ${n%s})_LIST
2195     eval enable \$$v
2196     eval ${n}_if_any="\$$v"
2197 done
2198
2199 enable $ARCH_EXT_LIST
2200
2201 die_unknown(){
2202     echo "Unknown option \"$1\"."
2203     echo "See $0 --help for available options."
2204     exit 1
2205 }
2206
2207 show_list() {
2208     suffix=_$1
2209     shift
2210     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2211     exit 0
2212 }
2213
2214 rand_list(){
2215     IFS=', '
2216     set -- $*
2217     unset IFS
2218     for thing; do
2219         comp=${thing%:*}
2220         prob=${thing#$comp}
2221         prob=${prob#:}
2222         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2223         echo "prob ${prob:-0.5}"
2224         printf '%s\n' $comp
2225     done
2226 }
2227
2228 do_random(){
2229     action=$1
2230     shift
2231     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2232     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2233 }
2234
2235 for opt do
2236     optval="${opt#*=}"
2237     case "$opt" in
2238         --extra-ldflags=*)
2239             add_ldflags $optval
2240         ;;
2241         --extra-libs=*)
2242             add_extralibs $optval
2243         ;;
2244         --disable-devices)
2245             disable $INDEV_LIST $OUTDEV_LIST
2246         ;;
2247         --enable-debug=*)
2248             debuglevel="$optval"
2249         ;;
2250         --disable-programs)
2251             disable $PROGRAM_LIST
2252         ;;
2253         --disable-everything)
2254             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2255         ;;
2256         --enable-random|--disable-random)
2257             action=${opt%%-random}
2258             do_random ${action#--} $COMPONENT_LIST
2259         ;;
2260         --enable-random=*|--disable-random=*)
2261             action=${opt%%-random=*}
2262             do_random ${action#--} $optval
2263         ;;
2264         --enable-*=*|--disable-*=*)
2265             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2266             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2267             eval list=\$$(toupper $thing)_LIST
2268             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2269             list=$(filter "$name" $list)
2270             [ "$list" = "" ] && warn "Option $opt did not match anything"
2271             $action $list
2272         ;;
2273         --enable-?*|--disable-?*)
2274             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2275             if is_in $option $COMPONENT_LIST; then
2276                 test $action = disable && action=unset
2277                 eval $action \$$(toupper ${option%s})_LIST
2278             elif is_in $option $CMDLINE_SELECT; then
2279                 $action $option
2280             else
2281                 die_unknown $opt
2282             fi
2283         ;;
2284         --list-*)
2285             NAME="${opt#--list-}"
2286             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2287             NAME=${NAME%s}
2288             eval show_list $NAME \$$(toupper $NAME)_LIST
2289         ;;
2290         --help|-h) show_help
2291         ;;
2292         --fatal-warnings) enable fatal_warnings
2293         ;;
2294         *)
2295             optname="${opt%%=*}"
2296             optname="${optname#--}"
2297             optname=$(echo "$optname" | sed 's/-/_/g')
2298             if is_in $optname $CMDLINE_SET; then
2299                 eval $optname='$optval'
2300             elif is_in $optname $CMDLINE_APPEND; then
2301                 append $optname "$optval"
2302             else
2303                 die_unknown $opt
2304             fi
2305         ;;
2306     esac
2307 done
2308
2309 disabled logging && logfile=/dev/null
2310
2311 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2312 set >> $logfile
2313
2314 test -n "$cross_prefix" && enable cross_compile
2315
2316 if enabled cross_compile; then
2317     test -n "$arch" && test -n "$target_os" ||
2318         die "Must specify target arch and OS when cross-compiling"
2319 fi
2320
2321 set_default postproc_version
2322
2323 # Check if we should build alternative libpostproc version instead of current
2324 if   test "$postproc_version" = $ALT_PP_VER; then
2325   LIBPOSTPROC_VERSION=$ALT_PP_VER
2326   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2327   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2328   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2329 elif test "$postproc_version" != current; then
2330   die "Invalid argument to --postproc-version. See --help output."
2331 fi
2332
2333 ar_default="${cross_prefix}${ar_default}"
2334 cc_default="${cross_prefix}${cc_default}"
2335 cxx_default="${cross_prefix}${cxx_default}"
2336 nm_default="${cross_prefix}${nm_default}"
2337 pkg_config_default="${cross_prefix}${pkg_config_default}"
2338 ranlib="${cross_prefix}${ranlib}"
2339 strip_default="${cross_prefix}${strip_default}"
2340
2341 sysinclude_default="${sysroot}/usr/include"
2342
2343 case "$toolchain" in
2344     clang-asan)
2345         cc_default="clang"
2346         add_cflags  -faddress-sanitizer
2347         add_ldflags -faddress-sanitizer
2348     ;;
2349     clang-tsan)
2350         cc_default="clang"
2351         add_cflags  -fthread-sanitizer
2352         add_ldflags -fthread-sanitizer
2353     ;;
2354     msvc)
2355         cc_default="c99wrap cl"
2356         ld_default="c99wrap link"
2357         nm_default="dumpbin -symbols"
2358         ar_default="lib"
2359         target_os_default="win32"
2360     ;;
2361     ?*)
2362         die "Unknown toolchain $toolchain"
2363     ;;
2364 esac
2365
2366 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2367 enabled cross_compile || host_cc_default=$cc
2368 set_default host_cc
2369
2370 if ! $pkg_config --version >/dev/null 2>&1; then
2371     warn "$pkg_config not found, library detection may fail."
2372     pkg_config=false
2373 fi
2374
2375 exesuf() {
2376     case $1 in
2377         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2378     esac
2379 }
2380
2381 EXESUF=$(exesuf $target_os)
2382 HOSTEXESUF=$(exesuf $host_os)
2383
2384 # set temporary file name
2385 : ${TMPDIR:=$TEMPDIR}
2386 : ${TMPDIR:=$TMP}
2387 : ${TMPDIR:=/tmp}
2388
2389 if ! check_cmd mktemp -u XXXXXX; then
2390     # simple replacement for missing mktemp
2391     # NOT SAFE FOR GENERAL USE
2392     mktemp(){
2393         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2394     }
2395 fi
2396
2397 tmpfile(){
2398     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2399         (set -C; exec > $tmp) 2>/dev/null ||
2400         die "Unable to create temporary file in $TMPDIR."
2401     append TMPFILES $tmp
2402     eval $1=$tmp
2403 }
2404
2405 trap 'rm -f -- $TMPFILES' EXIT
2406
2407 tmpfile TMPASM .asm
2408 tmpfile TMPC   .c
2409 tmpfile TMPCPP .cpp
2410 tmpfile TMPE   $EXESUF
2411 tmpfile TMPH   .h
2412 tmpfile TMPO   .o
2413 tmpfile TMPS   .S
2414 tmpfile TMPSH  .sh
2415 tmpfile TMPV   .ver
2416
2417 unset -f mktemp
2418
2419 chmod +x $TMPE
2420
2421 # make sure we can execute files in $TMPDIR
2422 cat > $TMPSH 2>> $logfile <<EOF
2423 #! /bin/sh
2424 EOF
2425 chmod +x $TMPSH >> $logfile 2>&1
2426 if ! $TMPSH >> $logfile 2>&1; then
2427     cat <<EOF
2428 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2429 variable to another directory and make sure that it is not mounted noexec.
2430 EOF
2431     die "Sanity test failed."
2432 fi
2433
2434 ccc_flags(){
2435     for flag; do
2436         case $flag in
2437             -std=c99)           echo -c99                       ;;
2438             -mcpu=*)            echo -arch ${flag#*=}           ;;
2439             -mieee)             echo -ieee                      ;;
2440             -O*|-fast)          echo $flag                      ;;
2441             -fno-math-errno)    echo -assume nomath_errno       ;;
2442             -g)                 echo -g3                        ;;
2443             -Wall)              echo -msg_enable level2         ;;
2444             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2445             -Wl,*)              echo $flag                      ;;
2446             -f*|-W*)                                            ;;
2447             *)                  echo $flag                      ;;
2448         esac
2449    done
2450 }
2451
2452 msvc_flags(){
2453     for flag; do
2454         case $flag in
2455             -fomit-frame-pointer) echo -Oy ;;
2456             -g)                   echo -Z7 ;;
2457             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2458                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2459                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2460                                        -wd4554 \
2461                                        -wd4996 -wd4273 ;;
2462             -std=c99)             ;;
2463             -fno-math-errno)      ;;
2464             -fno-common)          ;;
2465             -fno-signed-zeros)    ;;
2466             -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|bdver*) echo -xarch=sse4_1        ;;
2506                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2507                     k8|opteron|athlon64|athlon-fx)
2508                                               echo -xarch=sse2a          ;;
2509                     athlon*)                  echo -xarch=pentium_proa   ;;
2510                 esac
2511                 ;;
2512             -std=c99)             echo -xc99              ;;
2513             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2514             -fPIC)                echo -KPIC -xcode=pic32 ;;
2515             -W*,*)                echo $flag              ;;
2516             -f*-*|-W*)                                    ;;
2517             *)                    echo $flag              ;;
2518         esac
2519     done
2520 }
2521
2522 tms470_flags(){
2523     for flag; do
2524         case $flag in
2525             -march=*|-mcpu=*)
2526                 case "${flag#*=}" in
2527                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2528                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2529                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2530                     armv6*|arm11*)          echo -mv=6   ;;
2531                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2532                                             echo -mv=5e  ;;
2533                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2534                 esac
2535                 ;;
2536             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2537             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2538             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2539             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2540             -msoft-float)   echo --float_support=vfplib       ;;
2541             -O[0-3]|-mf=*)  echo $flag                        ;;
2542             -g)             echo -g -mn                       ;;
2543             -pds=*)         echo $flag                        ;;
2544             -D*|-I*)        echo $flag                        ;;
2545             --gcc|--abi=*)  echo $flag                        ;;
2546             -me)            echo $flag                        ;;
2547         esac
2548     done
2549 }
2550
2551 probe_cc(){
2552     pfx=$1
2553     _cc=$2
2554
2555     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2556     unset _ld_o _ldflags _ld_lib _ld_path
2557     unset _depflags _DEPCMD _DEPFLAGS
2558     _flags_filter=echo
2559
2560     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2561         _type=llvm_gcc
2562         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2563         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2564         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2565         _cflags_speed='-O3'
2566         _cflags_size='-Os'
2567     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2568         _type=gcc
2569         gcc_version=$($_cc --version | head -n1)
2570         gcc_basever=$($_cc -dumpversion)
2571         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2572         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2573         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2574         if ! $_cc -dumpversion | grep -q '^2\.'; then
2575             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2576         fi
2577         _cflags_speed='-O3'
2578         _cflags_size='-Os'
2579     elif $_cc --version 2>/dev/null | grep -q Intel; then
2580         _type=icc
2581         _ident=$($_cc --version | head -n1)
2582         _depflags='-MMD'
2583         _cflags_speed='-O3'
2584         _cflags_size='-Os'
2585         _cflags_noopt='-O1'
2586     elif $_cc -v 2>&1 | grep -q xlc; then
2587         _type=xlc
2588         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2589         _cflags_speed='-O5'
2590         _cflags_size='-O5 -qcompact'
2591     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2592         _type=ccc
2593         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2594         _DEPFLAGS='-M'
2595         _cflags_speed='-fast'
2596         _cflags_size='-O1'
2597         _flags_filter=ccc_flags
2598     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2599         test -d "$sysroot" || die "No valid sysroot specified."
2600         _type=armcc
2601         _ident=$($_cc --vsn | head -n1)
2602         armcc_conf="$PWD/armcc.conf"
2603         $_cc --arm_linux_configure                 \
2604              --arm_linux_config_file="$armcc_conf" \
2605              --configure_sysroot="$sysroot"        \
2606              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2607              die "Error creating armcc configuration file."
2608         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2609         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2610         as_default="${cross_prefix}gcc"
2611         _depflags='-MMD'
2612         _cflags_speed='-O3'
2613         _cflags_size='-Os'
2614     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2615         _type=tms470
2616         _ident=$($_cc -version | head -n1 | tr -s ' ')
2617         _flags='--gcc --abi=eabi -me'
2618         _cc_e='-ppl -fe=$@'
2619         _cc_o='-fe=$@'
2620         _depflags='-ppa -ppd=$(@:.o=.d)'
2621         _cflags_speed='-O3 -mf=5'
2622         _cflags_size='-O3 -mf=2'
2623         _flags_filter=tms470_flags
2624     elif $_cc -v 2>&1 | grep -q clang; then
2625         _type=clang
2626         _ident=$($_cc --version | head -n1)
2627         _depflags='-MMD'
2628         _cflags_speed='-O3'
2629         _cflags_size='-Os'
2630     elif $_cc -V 2>&1 | grep -q Sun; then
2631         _type=suncc
2632         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2633         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2634         _DEPFLAGS='-xM1 -xc99'
2635         _ldflags='-std=c99'
2636         _cflags_speed='-O5'
2637         _cflags_size='-O5 -xspace'
2638         _flags_filter=suncc_flags
2639     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2640         _type=pathscale
2641         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2642         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2643         _cflags_speed='-O2'
2644         _cflags_size='-Os'
2645         _flags_filter='filter_out -Wdisabled-optimization'
2646     elif $_cc -v 2>&1 | grep -q Open64; then
2647         _type=open64
2648         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2649         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2650         _cflags_speed='-O2'
2651         _cflags_size='-Os'
2652         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2653     elif $_cc -V 2>&1 | grep -q Portland; then
2654         _type=pgi
2655         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2656         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2657         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2658         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2659         _cflags_noopt="-O1"
2660         _flags_filter=pgi_flags
2661     elif $_cc 2>&1 | grep -q Microsoft; then
2662         _type=msvc
2663         _ident=$($cc 2>&1 | head -n1)
2664         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2665         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2666         _cflags_speed="-O2"
2667         _cflags_size="-O1"
2668         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2669         if $_cc 2>&1 | grep -q Linker; then
2670             _ld_o='-out $@'
2671         else
2672             _ld_o='-Fe$@'
2673         fi
2674         _cc_o='-Fo $@'
2675         _cc_e='-P -Fi $@'
2676         _flags_filter=msvc_flags
2677         _ld_lib='lib%.a'
2678         _ld_path='-libpath:'
2679         _flags='-nologo'
2680         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2681         if [ $pfx = hostcc ]; then
2682             append _cflags -Dsnprintf=_snprintf
2683         fi
2684         disable stripping
2685     fi
2686
2687     eval ${pfx}_type=\$_type
2688     eval ${pfx}_ident=\$_ident
2689 }
2690
2691 set_ccvars(){
2692     eval ${1}_C=\${_cc_c-\${${1}_C}}
2693     eval ${1}_E=\${_cc_e-\${${1}_E}}
2694     eval ${1}_O=\${_cc_o-\${${1}_O}}
2695
2696     if [ -n "$_depflags" ]; then
2697         eval ${1}_DEPFLAGS=\$_depflags
2698     else
2699         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2700         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2701         eval DEP${1}FLAGS=\$_flags
2702     fi
2703 }
2704
2705 probe_cc cc "$cc"
2706 cflags_filter=$_flags_filter
2707 cflags_speed=$_cflags_speed
2708 cflags_size=$_cflags_size
2709 cflags_noopt=$_cflags_noopt
2710 add_cflags $_flags $_cflags
2711 cc_ldflags=$_ldflags
2712 set_ccvars CC
2713
2714 probe_cc hostcc "$host_cc"
2715 host_cflags_filter=$_flags_filter
2716 add_host_cflags  $_flags $_cflags
2717 set_ccvars HOSTCC
2718
2719 test -n "$cc_type" && enable $cc_type ||
2720     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2721
2722 : ${as_default:=$cc}
2723 : ${dep_cc_default:=$cc}
2724 : ${ld_default:=$cc}
2725 : ${host_ld_default:=$host_cc}
2726 set_default ar as dep_cc ld host_ld
2727
2728 probe_cc as "$as"
2729 asflags_filter=$_flags_filter
2730 add_asflags $_flags $_cflags
2731 set_ccvars AS
2732
2733 probe_cc ld "$ld"
2734 ldflags_filter=$_flags_filter
2735 add_ldflags $_flags $_ldflags
2736 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2737 LD_O=${_ld_o-$LD_O}
2738 LD_LIB=${_ld_lib-$LD_LIB}
2739 LD_PATH=${_ld_path-$LD_PATH}
2740
2741 probe_cc hostld "$host_ld"
2742 host_ldflags_filter=$_flags_filter
2743 add_host_ldflags $_flags $_ldflags
2744 HOSTLD_O=${_ld_o-$HOSTLD_O}
2745
2746 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2747     probe_cc depcc "$dep_cc"
2748     CCDEP=${_DEPCMD:-$DEPCMD}
2749     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2750     DEPCCFLAGS=$_flags
2751 fi
2752
2753 if $ar 2>&1 | grep -q Microsoft; then
2754     arflags="-nologo"
2755     ar_o='-out:$@'
2756 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2757     arflags="rq"
2758     ar_o='$@'
2759 else
2760     arflags="rc"
2761     ar_o='$@'
2762 fi
2763
2764 add_cflags $extra_cflags
2765 add_cxxflags $extra_cxxflags
2766 add_asflags $extra_cflags
2767
2768 if test -n "$sysroot"; then
2769     case "$cc_type" in
2770         gcc|llvm_gcc|clang)
2771             add_cppflags --sysroot="$sysroot"
2772             add_ldflags --sysroot="$sysroot"
2773         ;;
2774         tms470)
2775             add_cppflags -I"$sysinclude"
2776             add_ldflags  --sysroot="$sysroot"
2777         ;;
2778     esac
2779 fi
2780
2781 if test "$cpu" = host; then
2782     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2783
2784     case "$cc_type" in
2785         gcc|llvm_gcc)
2786             check_native(){
2787                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2788                 sed -n "/cc1.*$1=/{
2789                             s/.*$1=\\([^ ]*\\).*/\\1/
2790                             p
2791                             q
2792                         }" $TMPE
2793             }
2794             cpu=$(check_native -march || check_native -mcpu)
2795         ;;
2796     esac
2797
2798     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2799 fi
2800
2801 # Deal with common $arch aliases
2802 case "$arch" in
2803     aarch64|arm64)
2804         arch="aarch64"
2805     ;;
2806     arm*|iPad*)
2807         arch="arm"
2808     ;;
2809     mips*|IP*)
2810         arch="mips"
2811     ;;
2812     parisc*|hppa*)
2813         arch="parisc"
2814     ;;
2815     "Power Macintosh"|ppc*|powerpc*)
2816         arch="ppc"
2817     ;;
2818     s390|s390x)
2819         arch="s390"
2820     ;;
2821     sh4|sh)
2822         arch="sh4"
2823     ;;
2824     sun4u|sparc*)
2825         arch="sparc"
2826     ;;
2827     tilegx|tile-gx)
2828         arch="tilegx"
2829     ;;
2830     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2831         arch="x86"
2832     ;;
2833 esac
2834
2835 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2836 enable $arch
2837
2838 # Add processor-specific flags
2839 if enabled aarch64; then
2840
2841     case $cpu in
2842         armv*)
2843             cpuflags="-march=$cpu"
2844         ;;
2845         *)
2846             cpuflags="-mcpu=$cpu"
2847         ;;
2848     esac
2849
2850 elif enabled alpha; then
2851
2852     cpuflags="-mcpu=$cpu"
2853
2854 elif enabled arm; then
2855
2856     check_arm_arch() {
2857         check_cpp_condition stddef.h \
2858             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2859             $cpuflags
2860     }
2861
2862     probe_arm_arch() {
2863         if   check_arm_arch 4;        then echo armv4;
2864         elif check_arm_arch 4T;       then echo armv4t;
2865         elif check_arm_arch 5;        then echo armv5;
2866         elif check_arm_arch 5E;       then echo armv5e;
2867         elif check_arm_arch 5T;       then echo armv5t;
2868         elif check_arm_arch 5TE;      then echo armv5te;
2869         elif check_arm_arch 5TEJ;     then echo armv5te;
2870         elif check_arm_arch 6;        then echo armv6;
2871         elif check_arm_arch 6J;       then echo armv6j;
2872         elif check_arm_arch 6K;       then echo armv6k;
2873         elif check_arm_arch 6Z;       then echo armv6z;
2874         elif check_arm_arch 6ZK;      then echo armv6zk;
2875         elif check_arm_arch 6T2;      then echo armv6t2;
2876         elif check_arm_arch 7;        then echo armv7;
2877         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2878         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2879         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2880         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2881         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2882         fi
2883     }
2884
2885     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2886
2887     case $cpu in
2888         armv*)
2889             cpuflags="-march=$cpu"
2890             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2891         ;;
2892         *)
2893             cpuflags="-mcpu=$cpu"
2894             case $cpu in
2895                 cortex-a*)                               subarch=armv7a  ;;
2896                 cortex-r*)                               subarch=armv7r  ;;
2897                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2898                 arm11*)                                  subarch=armv6   ;;
2899                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2900                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2901                 *)                             subarch=$(probe_arm_arch) ;;
2902             esac
2903         ;;
2904     esac
2905
2906     case "$subarch" in
2907         armv5t*)    enable fast_clz                ;;
2908         armv[6-8]*) enable fast_clz fast_unaligned ;;
2909     esac
2910
2911 elif enabled avr32; then
2912
2913     case $cpu in
2914         ap7[02]0[0-2])
2915             subarch="avr32_ap"
2916             cpuflags="-mpart=$cpu"
2917         ;;
2918         ap)
2919             subarch="avr32_ap"
2920             cpuflags="-march=$cpu"
2921         ;;
2922         uc3[ab]*)
2923             subarch="avr32_uc"
2924             cpuflags="-mcpu=$cpu"
2925         ;;
2926         uc)
2927             subarch="avr32_uc"
2928             cpuflags="-march=$cpu"
2929         ;;
2930     esac
2931
2932 elif enabled bfin; then
2933
2934     cpuflags="-mcpu=$cpu"
2935
2936 elif enabled mips; then
2937
2938     cpuflags="-march=$cpu"
2939
2940     case $cpu in
2941         24kc)
2942             disable mipsfpu
2943             disable mipsdspr1
2944             disable mipsdspr2
2945         ;;
2946         24kf*)
2947             disable mipsdspr1
2948             disable mipsdspr2
2949         ;;
2950         24kec|34kc|1004kc)
2951             disable mipsfpu
2952             disable mipsdspr2
2953         ;;
2954         24kef*|34kf*|1004kf*)
2955             disable mipsdspr2
2956         ;;
2957         74kc)
2958             disable mipsfpu
2959         ;;
2960     esac
2961
2962 elif enabled ppc; then
2963
2964     case $(tolower $cpu) in
2965         601|ppc601|powerpc601)
2966             cpuflags="-mcpu=601"
2967             disable altivec
2968         ;;
2969         603*|ppc603*|powerpc603*)
2970             cpuflags="-mcpu=603"
2971             disable altivec
2972         ;;
2973         604*|ppc604*|powerpc604*)
2974             cpuflags="-mcpu=604"
2975             disable altivec
2976         ;;
2977         g3|75*|ppc75*|powerpc75*)
2978             cpuflags="-mcpu=750"
2979             disable altivec
2980         ;;
2981         g4|745*|ppc745*|powerpc745*)
2982             cpuflags="-mcpu=7450"
2983         ;;
2984         74*|ppc74*|powerpc74*)
2985             cpuflags="-mcpu=7400"
2986         ;;
2987         g5|970|ppc970|powerpc970)
2988             cpuflags="-mcpu=970"
2989         ;;
2990         power[3-7]*)
2991             cpuflags="-mcpu=$cpu"
2992         ;;
2993         cell)
2994             cpuflags="-mcpu=cell"
2995             enable ldbrx
2996         ;;
2997         e500mc)
2998             cpuflags="-mcpu=e500mc"
2999             disable altivec
3000         ;;
3001         e500v2)
3002             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3003             disable altivec
3004         ;;
3005         e500)
3006             cpuflags="-mcpu=8540 -mhard-float"
3007             disable altivec
3008         ;;
3009     esac
3010
3011 elif enabled sparc; then
3012
3013     case $cpu in
3014         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3015             cpuflags="-mcpu=$cpu"
3016             disable vis
3017         ;;
3018         ultrasparc*|niagara[234])
3019             cpuflags="-mcpu=$cpu"
3020         ;;
3021     esac
3022
3023 elif enabled x86; then
3024
3025     case $cpu in
3026         i[345]86|pentium)
3027             cpuflags="-march=$cpu"
3028             disable mmx
3029         ;;
3030         # targets that do NOT support conditional mov (cmov)
3031         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3032             cpuflags="-march=$cpu"
3033             disable cmov
3034         ;;
3035         # targets that do support conditional mov (cmov)
3036         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3037             cpuflags="-march=$cpu"
3038             enable cmov
3039             enable fast_cmov
3040         ;;
3041         # targets that do support conditional mov but on which it's slow
3042         pentium4|pentium4m|prescott|nocona)
3043             cpuflags="-march=$cpu"
3044             enable cmov
3045             disable fast_cmov
3046         ;;
3047     esac
3048
3049 fi
3050
3051 if [ "$cpu" != generic ]; then
3052     add_cflags  $cpuflags
3053     add_asflags $cpuflags
3054 fi
3055
3056 # compiler sanity check
3057 check_exec <<EOF
3058 int main(void){ return 0; }
3059 EOF
3060 if test "$?" != 0; then
3061     echo "$cc is unable to create an executable file."
3062     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3063         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3064         echo "Only do this if you know what cross compiling means."
3065     fi
3066     die "C compiler test failed."
3067 fi
3068
3069 add_cppflags -D_ISOC99_SOURCE
3070 add_cxxflags -D__STDC_CONSTANT_MACROS
3071 check_cflags -std=c99
3072 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3073 #include <stdlib.h>
3074 EOF
3075 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3076 #include <stdlib.h>
3077 EOF
3078
3079 check_host_cflags -std=c99
3080 check_host_cflags -Wall
3081
3082 check_64bit(){
3083     arch32=$1
3084     arch64=$2
3085     expr=$3
3086     check_code cc "" "int test[2*($expr) - 1]" &&
3087         subarch=$arch64 || subarch=$arch32
3088 }
3089
3090 case "$arch" in
3091     alpha|ia64)
3092         spic=$shared
3093     ;;
3094     mips)
3095         check_64bit mips mips64 '_MIPS_SIM > 1'
3096         spic=$shared
3097     ;;
3098     parisc)
3099         check_64bit parisc parisc64 'sizeof(void *) > 4'
3100         spic=$shared
3101     ;;
3102     ppc)
3103         check_64bit ppc ppc64 'sizeof(void *) > 4'
3104         spic=$shared
3105     ;;
3106     sparc)
3107         check_64bit sparc sparc64 'sizeof(void *) > 4'
3108         spic=$shared
3109     ;;
3110     x86)
3111         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3112         if test "$subarch" = "x86_64"; then
3113             spic=$shared
3114         fi
3115     ;;
3116     ppc)
3117         check_cc <<EOF && subarch="ppc64"
3118         int test[(int)sizeof(char*) - 7];
3119 EOF
3120     ;;
3121 esac
3122
3123 enable $subarch
3124 enabled spic && enable pic
3125
3126 # OS specific
3127 case $target_os in
3128     haiku)
3129         prefix_default="/boot/common"
3130         network_extralibs="-lnetwork"
3131         host_libs=
3132         ;;
3133     sunos)
3134         FFSERVERLDFLAGS=""
3135         SHFLAGS='-shared -Wl,-h,$$(@F)'
3136         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3137         network_extralibs="-lsocket -lnsl"
3138         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3139         # When using suncc to build, the Solaris linker will mark
3140         # an executable with each instruction set encountered by
3141         # the Solaris assembler.  As our libraries contain their own
3142         # guards for processor-specific code, instead suppress
3143         # generation of the HWCAPS ELF section on Solaris x86 only.
3144         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3145         nm_default='nm -P -g'
3146         ;;
3147     netbsd)
3148         disable symver
3149         oss_indev_extralibs="-lossaudio"
3150         oss_outdev_extralibs="-lossaudio"
3151         enabled gcc || check_ldflags -Wl,-zmuldefs
3152         ;;
3153     openbsd|bitrig)
3154         # On OpenBSD 4.5. the compiler does not use PIC unless
3155         # explicitly using -fPIC. FFmpeg builds fine without PIC,
3156         # however the generated executable will not do anything
3157         # (simply quits with exit-code 1, no crash, no output).
3158         # Thus explicitly enable PIC here.
3159         enable pic
3160         disable symver
3161         SHFLAGS='-shared'
3162         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3163         SLIB_INSTALL_LINKS=
3164         oss_indev_extralibs="-lossaudio"
3165         oss_outdev_extralibs="-lossaudio"
3166         ;;
3167     dragonfly)
3168         disable symver
3169         ;;
3170     freebsd)
3171         ;;
3172     bsd/os)
3173         add_extralibs -lpoll -lgnugetopt
3174         strip="strip -d"
3175         ;;
3176     darwin)
3177         gas="gas-preprocessor.pl $cc"
3178         enabled ppc && add_asflags -force_cpusubtype_ALL
3179         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3180         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3181         strip="${strip} -x"
3182         add_ldflags -Wl,-dynamic,-search_paths_first
3183         SLIBSUF=".dylib"
3184         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3185         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3186         FFSERVERLDFLAGS=-Wl,-bind_at_load
3187         objformat="macho"
3188         enabled x86_64 && objformat="macho64"
3189         enabled_any pic shared ||
3190             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3191         ;;
3192     mingw32*)
3193         if test $target_os = "mingw32ce"; then
3194             disable network
3195         else
3196             target_os=mingw32
3197         fi
3198         LIBTARGET=i386
3199         if enabled x86_64; then
3200             LIBTARGET="i386:x86-64"
3201         elif enabled arm; then
3202             LIBTARGET=arm-wince
3203         fi
3204         shlibdir_default="$bindir_default"
3205         SLIBPREF=""
3206         SLIBSUF=".dll"
3207         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3208         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3209         dlltool="${cross_prefix}dlltool"
3210         if check_cmd lib.exe -list; then
3211             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3212             if enabled x86_64; then
3213                 LIBTARGET=x64
3214             fi
3215         elif check_cmd $dlltool --version; then
3216             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3217         fi
3218         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3219         SLIB_INSTALL_LINKS=
3220         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3221         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3222         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3223         objformat="win32"
3224         ranlib=:
3225         enable dos_paths
3226         add_cppflags -U__STRICT_ANSI__
3227         ;;
3228     win32|win64)
3229         if enabled shared; then
3230             # Link to the import library instead of the normal static library
3231             # for shared libs.
3232             LD_LIB='%.lib'
3233             # Cannot build shared and static libraries at the same time with
3234             # MSVC.
3235             disable static
3236         fi
3237         shlibdir_default="$bindir_default"
3238         SLIBPREF=""
3239         SLIBSUF=".dll"
3240         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3241         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3242         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3243         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3244         SLIB_INSTALL_LINKS=
3245         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3246         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3247         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3248         objformat="win32"
3249         ranlib=:
3250         enable dos_paths
3251         ;;
3252     cygwin*)
3253         target_os=cygwin
3254         shlibdir_default="$bindir_default"
3255         SLIBPREF="cyg"
3256         SLIBSUF=".dll"
3257         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3258         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3259         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3260         SLIB_INSTALL_LINKS=
3261         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3262         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3263         objformat="win32"
3264         enable dos_paths
3265         ;;
3266     *-dos|freedos|opendos)
3267         network_extralibs="-lsocket"
3268         objformat="coff"
3269         enable dos_paths
3270         add_cppflags -U__STRICT_ANSI__
3271         ;;
3272     linux)
3273         enable dv1394
3274         ;;
3275     irix*)
3276         target_os=irix
3277         ranlib="echo ignoring ranlib"
3278         ;;
3279     os/2*)
3280         strip="lxlite -CS"
3281         ln_s="cp -f"
3282         objformat="aout"
3283         add_cppflags -D_GNU_SOURCE
3284         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3285         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3286         FFSERVERLDFLAGS=""
3287         LIBSUF="_s.a"
3288         SLIBPREF=""
3289         SLIBSUF=".dll"
3290         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3291         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3292         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3293             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3294             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3295             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3296             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3297             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3298         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3299             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3300         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3301         enable dos_paths
3302         enable_weak os2threads
3303         ;;
3304     gnu/kfreebsd)
3305         add_cppflags -D_BSD_SOURCE
3306         ;;
3307     gnu)
3308         ;;
3309     qnx)
3310         add_cppflags -D_QNX_SOURCE
3311         network_extralibs="-lsocket"
3312         ;;
3313     symbian)
3314         SLIBSUF=".dll"
3315         enable dos_paths
3316         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3317         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3318         add_ldflags -Wl,--target1-abs,--no-undefined \
3319                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3320                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3321         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3322                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3323                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3324         ;;
3325     osf1)
3326         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3327         FFSERVERLDFLAGS=
3328         ;;
3329     minix)
3330         ;;
3331     plan9)
3332         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3333                      -D_REENTRANT_SOURCE        \
3334                      -D_RESEARCH_SOURCE         \
3335                      -DFD_SETSIZE=96            \
3336                      -DHAVE_SOCK_OPTS
3337         add_compat strtod.o strtod=avpriv_strtod
3338         network_extralibs='-lbsd'
3339         exeobjs=compat/plan9/main.o
3340         disable ffserver
3341         ln_s='ln -s -f'
3342         cp_f='cp'
3343         ;;
3344     none)
3345         ;;
3346     *)
3347         die "Unknown OS '$target_os'."
3348         ;;
3349 esac
3350
3351 # determine libc flavour
3352
3353 if check_cpp_condition features.h "defined __UCLIBC__"; then
3354     libc_type=uclibc
3355     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3356 elif check_cpp_condition features.h "defined __GLIBC__"; then
3357     libc_type=glibc
3358     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3359 elif check_header _mingw.h; then
3360     libc_type=mingw
3361     check_cpp_condition _mingw.h \
3362         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3363             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3364         die "ERROR: MinGW runtime version must be >= 3.15."
3365     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3366             __MINGW64_VERSION_MAJOR < 3"; then
3367         add_compat msvcrt/snprintf.o
3368         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3369     fi
3370 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3371     libc_type=newlib
3372     add_cppflags -U__STRICT_ANSI__
3373 elif check_func_headers stdlib.h _get_doserrno; then
3374     libc_type=msvcrt
3375     add_compat strtod.o strtod=avpriv_strtod
3376     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3377                                  _snprintf=avpriv_snprintf  \
3378                                  vsnprintf=avpriv_vsnprintf
3379 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3380     libc_type=klibc
3381 fi
3382
3383 test -n "$libc_type" && enable $libc_type
3384
3385 # hacks for compiler/libc/os combinations
3386
3387 if enabled_all tms470 glibc; then
3388     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3389     add_cppflags -D__USER_LABEL_PREFIX__=
3390     add_cppflags -D__builtin_memset=memset
3391     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3392     add_cflags   -pds=48    # incompatible redefinition of macro
3393 fi
3394
3395 if enabled_all ccc glibc; then
3396     add_ldflags -Wl,-z,now  # calls to libots crash without this
3397 fi
3398
3399 esc(){
3400     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3401 }
3402
3403 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3404
3405 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3406
3407 set_default $PATHS_LIST
3408 set_default nm
3409
3410 # we need to build at least one lib type
3411 if ! enabled_any static shared; then
3412     cat <<EOF
3413 At least one library type must be built.
3414 Specify --enable-static to build the static libraries or --enable-shared to
3415 build the shared libraries as well. To only build the shared libraries specify
3416 --disable-static in addition to --enable-shared.
3417 EOF
3418     exit 1;
3419 fi
3420
3421 die_license_disabled() {
3422     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3423 }
3424
3425 die_license_disabled_gpl() {
3426     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3427 }
3428
3429 die_license_disabled gpl libcdio
3430 die_license_disabled gpl libutvideo
3431 die_license_disabled gpl libx264
3432 die_license_disabled gpl libxavs
3433 die_license_disabled gpl libxvid
3434 die_license_disabled gpl x11grab
3435
3436 die_license_disabled nonfree libaacplus
3437 die_license_disabled nonfree libfaac
3438 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3439 enabled gpl && die_license_disabled_gpl nonfree openssl
3440
3441 die_license_disabled version3 libopencore_amrnb
3442 die_license_disabled version3 libopencore_amrwb
3443 die_license_disabled version3 libvo_aacenc
3444 die_license_disabled version3 libvo_amrwbenc
3445
3446 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3447
3448 disabled optimizations || check_cflags -fomit-frame-pointer
3449
3450 enable_pic() {
3451     enable pic
3452     add_cppflags -DPIC
3453     add_cflags   -fPIC
3454     add_asflags  -fPIC
3455 }
3456
3457 enabled pic && enable_pic
3458
3459 check_cc <<EOF || die "Symbol mangling check failed."
3460 int ff_extern;
3461 EOF
3462 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3463 extern_prefix=${sym%%ff_extern*}
3464
3465 check_cc <<EOF && enable_weak inline_asm
3466 void foo(void) { __asm__ volatile ("" ::); }
3467 EOF
3468
3469 _restrict=
3470 for restrict_keyword in restrict __restrict__ __restrict; do
3471     check_cc <<EOF && _restrict=$restrict_keyword && break
3472 void foo(char * $restrict_keyword p);
3473 EOF
3474 done
3475
3476 check_cc <<EOF && enable attribute_packed
3477 struct { int x; } __attribute__((packed)) x;
3478 EOF
3479
3480 check_cc <<EOF && enable attribute_may_alias
3481 union { int x; } __attribute__((may_alias)) x;
3482 EOF
3483
3484 check_cc <<EOF || die "endian test failed"
3485 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3486 EOF
3487 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3488
3489 if enabled alpha; then
3490
3491     check_cflags -mieee
3492
3493 elif enabled arm; then
3494
3495     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3496 float func(float a, float b){ return a+b; }
3497 EOF
3498
3499     enabled thumb && check_cflags -mthumb || check_cflags -marm
3500     nogas=die
3501
3502     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3503         enable vfp_args
3504     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3505         case "${cross_prefix:-$cc}" in
3506             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3507             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3508 __asm__ (".eabi_attribute 28, 1");
3509 int main(void) { return 0; }
3510 EOF
3511         esac
3512         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3513     fi
3514
3515     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3516     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3517     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3518     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3519     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3520     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3521
3522     [ $target_os = linux ] ||
3523         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3524             $ARCH_EXT_LIST_ARM
3525
3526     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3527     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3528
3529     enabled_all armv6t2 shared !pic && enable_pic
3530
3531 elif enabled mips; then
3532
3533     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3534     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3535      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3536     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3537      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3538     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3539      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3540     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3541      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3542
3543 elif enabled parisc; then
3544
3545     if enabled gcc; then
3546         case $($cc -dumpversion) in
3547             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3548         esac
3549     fi
3550
3551 elif enabled ppc; then
3552
3553     enable local_aligned_8 local_aligned_16
3554
3555     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3556     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3557     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3558     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3559
3560     # AltiVec flags: The FSF version of GCC differs from the Apple version
3561     if enabled altivec; then
3562         nogas=warn
3563         check_cflags -maltivec -mabi=altivec &&
3564         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3565         check_cflags -faltivec
3566
3567         # check if our compiler supports Motorola AltiVec C API
3568         check_cc <<EOF || disable altivec
3569 $inc_altivec_h
3570 int main(void) {
3571     vector signed int v1 = (vector signed int) { 0 };
3572     vector signed int v2 = (vector signed int) { 1 };
3573     v1 = vec_add(v1, v2);
3574     return 0;
3575 }
3576 EOF
3577
3578         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3579     fi
3580
3581 elif enabled sparc; then
3582
3583     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3584
3585 elif enabled x86; then
3586
3587     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3588
3589     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3590
3591     enable local_aligned_8 local_aligned_16
3592
3593     # check whether EBP is available on x86
3594     # As 'i' is stored on the stack, this program will crash
3595     # if the base pointer is used to access it because the
3596     # base pointer is cleared in the inline assembly code.
3597     check_exec_crash <<EOF && enable ebp_available
3598 volatile int i=0;
3599 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3600 return i;
3601 EOF
3602
3603     # check whether EBX is available on x86
3604     check_inline_asm ebx_available '""::"b"(0)' &&
3605         check_inline_asm ebx_available '"":::"%ebx"'
3606
3607     # check whether xmm clobbers are supported
3608     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3609
3610     # check whether binutils is new enough to compile SSSE3/MMXEXT
3611     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3612     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3613
3614     if ! disabled_any asm mmx yasm; then
3615         if check_cmd $yasmexe --version; then
3616             enabled x86_64 && yasm_extra="-m amd64"
3617             yasm_debug="-g dwarf2"
3618         elif check_cmd nasm -v; then
3619             yasmexe=nasm
3620             yasm_debug="-g -F dwarf"
3621             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3622         fi
3623
3624         YASMFLAGS="-f $objformat $yasm_extra"
3625         enabled pic               && append YASMFLAGS "-DPIC"
3626         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3627         case "$objformat" in
3628             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3629         esac
3630
3631         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3632             die "yasm not found, use --disable-yasm for a crippled build"
3633         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3634         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3635         check_yasm "CPU amdnop" && enable cpunop
3636     fi
3637
3638     case "$cpu" in
3639         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3640             disable fast_clz
3641         ;;
3642     esac
3643
3644 fi
3645
3646 if enabled asm; then
3647     as=${gas:=$as}
3648     check_as <<EOF && enable gnu_as || \
3649         $nogas "GNU assembler not found, install gas-preprocessor"
3650 .macro m n
3651 \n: .int 0
3652 .endm
3653 m x
3654 EOF
3655 fi
3656
3657 check_ldflags -Wl,--as-needed
3658
3659 if check_func dlopen; then
3660     ldl=
3661 elif check_func dlopen -ldl; then
3662     ldl=-ldl
3663 fi
3664
3665 if ! disabled network; then
3666     check_type "sys/types.h sys/socket.h" socklen_t
3667     check_type netdb.h "struct addrinfo"
3668     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3669     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3670     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3671     check_type netinet/in.h "struct sockaddr_in6"
3672     check_type poll.h "struct pollfd"
3673     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3674     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3675     check_type netinet/sctp.h "struct sctp_event_subscribe"
3676     check_func getaddrinfo $network_extralibs
3677     check_func getservbyport $network_extralibs
3678     # Prefer arpa/inet.h over winsock2
3679     if check_header arpa/inet.h ; then
3680         check_func closesocket
3681     elif check_header winsock2.h ; then
3682         check_func_headers winsock2.h closesocket -lws2 &&
3683             network_extralibs="-lws2" ||
3684         { check_func_headers winsock2.h closesocket -lws2_32 &&
3685             network_extralibs="-lws2_32"; }
3686         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3687         check_type ws2tcpip.h socklen_t
3688         check_type ws2tcpip.h "struct addrinfo"
3689         check_type ws2tcpip.h "struct group_source_req"
3690         check_type ws2tcpip.h "struct ip_mreq_source"
3691         check_type ws2tcpip.h "struct ipv6_mreq"
3692         check_type winsock2.h "struct pollfd"
3693         check_type ws2tcpip.h "struct sockaddr_in6"
3694         check_type ws2tcpip.h "struct sockaddr_storage"
3695         check_struct winsock2.h "struct sockaddr" sa_len
3696     else
3697         disable network
3698     fi
3699 fi
3700
3701 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3702 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3703
3704 check_func  access
3705 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3706 check_func  fcntl
3707 check_func  fork
3708 check_func  gethrtime
3709 check_func  getopt
3710 check_func  getrusage
3711 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3712 check_func  gettimeofday
3713 check_func  inet_aton $network_extralibs
3714 check_func  isatty
3715 check_func  localtime_r
3716 check_func  ${malloc_prefix}memalign            && enable memalign
3717 check_func  mkstemp
3718 check_func  mmap
3719 check_func  mprotect
3720 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3721 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3722 check_func  setrlimit
3723 check_func  strerror_r
3724 check_func  sched_getaffinity
3725 check_func  sysconf
3726 check_func  sysctl
3727 check_func  usleep
3728 check_func_headers conio.h kbhit
3729 check_func_headers windows.h PeekNamedPipe
3730 check_func_headers io.h setmode
3731 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3732 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3733 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3734 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3735 check_func_headers windows.h GetProcessAffinityMask
3736 check_func_headers windows.h GetProcessTimes
3737 check_func_headers windows.h GetSystemTimeAsFileTime
3738 check_func_headers windows.h MapViewOfFile
3739 check_func_headers windows.h SetConsoleTextAttribute
3740 check_func_headers windows.h Sleep
3741 check_func_headers windows.h VirtualAlloc
3742 check_func_headers glob.h glob
3743
3744 check_header direct.h
3745 check_header dlfcn.h
3746 check_header dxva.h
3747 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3748 check_header io.h
3749 check_header libcrystalhd/libcrystalhd_if.h
3750 check_header malloc.h
3751 check_header poll.h
3752 check_header sys/mman.h
3753 check_header sys/param.h
3754 check_header sys/resource.h
3755 check_header sys/select.h
3756 check_header sys/time.h
3757 check_header termios.h
3758 check_header unistd.h
3759 check_header vdpau/vdpau.h
3760 check_header vdpau/vdpau_x11.h
3761 check_header windows.h
3762 check_header X11/extensions/XvMClib.h
3763 check_header asm/types.h
3764
3765 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3766 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3767
3768 # check for VDA header
3769 if ! disabled vda && ! enabled ppc; then
3770     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3771         enable vda
3772         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3773     fi
3774 fi
3775
3776 if ! disabled w32threads && ! enabled pthreads; then
3777     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3778 fi
3779
3780 # check for some common methods of building with pthread support
3781 # do this before the optional library checks as some of them require pthreads
3782 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3783     enable pthreads
3784     if check_func pthread_create; then
3785         :
3786     elif check_func pthread_create -pthread; then
3787         add_cflags -pthread
3788         add_extralibs -pthread
3789     elif check_func pthread_create -pthreads; then
3790         add_cflags -pthreads
3791         add_extralibs -pthreads
3792     elif check_func pthread_create -lpthreadGC2; then
3793         add_extralibs -lpthreadGC2
3794     elif ! check_lib pthread.h pthread_create -lpthread; then
3795         disable pthreads
3796     fi
3797 fi
3798
3799 for thread in $THREADS_LIST; do
3800     if enabled $thread; then
3801         test -n "$thread_type" &&
3802             die "ERROR: Only one thread type must be selected." ||
3803             thread_type="$thread"
3804     fi
3805 done
3806
3807 if enabled pthreads; then
3808   check_func pthread_cancel
3809 fi
3810
3811 check_lib math.h sin -lm && LIBM="-lm"
3812 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3813 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3814
3815 atan2f_args=2
3816 ldexpf_args=2
3817 powf_args=2
3818
3819 for func in $MATH_FUNCS; do
3820     eval check_mathfunc $func \${${func}_args:-1}
3821 done
3822
3823 # these are off by default, so fail if requested and not available
3824 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3825 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3826 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3827 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3828 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3829 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3830 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3831 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3832 enabled libcdio    && require2 libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3833 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3834                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3835                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3836 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3837 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3838 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3839 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"
3840 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3841 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3842 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3843 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3844 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3845 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3846 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3847 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3848 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3849 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3850 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3851                          check_lib openjpeg.h opj_version -lopenjpeg ||
3852                          die "ERROR: libopenjpeg not found"; }
3853 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3854 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3855 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3856 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3857 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3858 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3859 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3860     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3861     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3862 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3863 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3864                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3865                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3866 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3867 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3868 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3869 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3870 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3871 enabled libvpx     && {
3872     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3873                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3874     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3875                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3876 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3877                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3878                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3879 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3880 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3881 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3882                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3883                         die "ERROR: openal not found"; } &&
3884                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3885                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3886 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3887                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3888                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3889                         die "ERROR: openssl not found"; }
3890
3891 if enabled gnutls; then
3892     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3893     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3894 fi
3895
3896 # libdc1394 check
3897 if enabled libdc1394; then
3898     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3899         enable libdc1394_2; } ||
3900     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3901         enable libdc1394_1; } ||
3902     die "ERROR: No version of libdc1394 found "
3903 fi
3904
3905 SDL_CONFIG="${cross_prefix}sdl-config"
3906 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3907     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3908     enable sdl &&
3909     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3910 else
3911   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3912     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3913     sdl_libs=$("${SDL_CONFIG}" --libs)
3914     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3915     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3916     enable sdl &&
3917     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3918   fi
3919 fi
3920 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3921
3922 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3923 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3924 perl --version > /dev/null 2>&1 && enable perl || disable perl
3925 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3926 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3927
3928 check_header linux/fb.h
3929 check_header linux/videodev.h
3930 check_header linux/videodev2.h
3931 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3932
3933 check_header sys/videoio.h
3934
3935 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3936 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3937 # w32api 3.12 had it defined wrong
3938 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3939
3940 check_type "dshow.h" IBaseFilter
3941
3942 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3943 { check_header dev/bktr/ioctl_meteor.h &&
3944   check_header dev/bktr/ioctl_bt848.h; } ||
3945 { check_header machine/ioctl_meteor.h &&
3946   check_header machine/ioctl_bt848.h; } ||
3947 { check_header dev/video/meteor/ioctl_meteor.h &&
3948   check_header dev/video/bktr/ioctl_bt848.h; } ||
3949 check_header dev/ic/bt8xx.h
3950
3951 check_header sndio.h
3952 if check_struct sys/soundcard.h audio_buf_info bytes; then
3953     enable_safe sys/soundcard.h
3954 else
3955     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3956     #include <sys/soundcard.h>
3957     audio_buf_info abc;
3958 EOF
3959 fi
3960 check_header soundcard.h
3961
3962 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3963
3964 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3965     check_func jack_port_get_latency_range -ljack
3966
3967 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3968
3969
3970 enabled x11grab                                           &&
3971 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3972 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3973 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3974
3975 if ! disabled vaapi; then
3976     check_lib va/va.h vaInitialize -lva && {
3977         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3978         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3979     } || disable vaapi
3980 fi
3981
3982 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3983     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3984         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3985 fi
3986
3987 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3988 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3989 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"
3990
3991 # add some useful compiler flags if supported
3992 check_cflags -Wdeclaration-after-statement
3993 check_cflags -Wall
3994 check_cflags -Wno-parentheses
3995 check_cflags -Wno-switch
3996 check_cflags -Wno-format-zero-length
3997 check_cflags -Wdisabled-optimization
3998 check_cflags -Wpointer-arith
3999 check_cflags -Wredundant-decls
4000 check_cflags -Wno-pointer-sign
4001 check_cflags -Wwrite-strings
4002 check_cflags -Wtype-limits
4003 check_cflags -Wundef
4004 check_cflags -Wmissing-prototypes
4005 check_cflags -Wno-pointer-to-int-cast
4006 check_cflags -Wstrict-prototypes
4007 enabled extra_warnings && check_cflags -Winline
4008
4009 # add some linker flags
4010 check_ldflags -Wl,--warn-common
4011 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4012 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4013
4014 enabled xmm_clobber_test &&
4015     check_ldflags -Wl,--wrap,avcodec_open2              \
4016                   -Wl,--wrap,avcodec_decode_audio4      \
4017                   -Wl,--wrap,avcodec_decode_video2      \
4018                   -Wl,--wrap,avcodec_decode_subtitle2   \
4019                   -Wl,--wrap,avcodec_encode_audio2      \
4020                   -Wl,--wrap,avcodec_encode_video       \
4021                   -Wl,--wrap,avcodec_encode_subtitle    \
4022                   -Wl,--wrap,sws_scale ||
4023     disable xmm_clobber_test
4024
4025 echo "X{};" > $TMPV
4026 if test_ldflags -Wl,--version-script,$TMPV; then
4027     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4028     check_cc <<EOF && enable symver_asm_label
4029 void ff_foo(void) __asm__ ("av_foo@VERSION");
4030 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4031 EOF
4032     check_cc <<EOF && enable symver_gnu_asm
4033 __asm__(".symver ff_foo,av_foo@VERSION");
4034 void ff_foo(void) {}
4035 EOF
4036 fi
4037
4038 if [ -z "$optflags" ]; then
4039     if enabled small; then
4040         optflags=$cflags_size
4041     elif enabled optimizations; then
4042         optflags=$cflags_speed
4043     else
4044         optflags=$cflags_noopt
4045     fi
4046 fi
4047
4048 check_optflags(){
4049     check_cflags "$@"
4050     enabled lto && check_ldflags "$@"
4051 }
4052
4053
4054 if enabled lto; then
4055     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4056     check_cflags  -flto
4057     check_ldflags -flto $cpuflags
4058 fi
4059
4060 check_optflags $optflags
4061 check_optflags -fno-math-errno
4062 check_optflags -fno-signed-zeros
4063
4064 enabled ftrapv && check_cflags -ftrapv
4065
4066 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4067 int x;
4068 EOF
4069
4070
4071 if enabled icc; then
4072     # Just warnings, no remarks
4073     check_cflags -w1
4074     # -wd: Disable following warnings
4075     # 144, 167, 556: -Wno-pointer-sign
4076     # 1292: attribute "foo" ignored
4077     # 1419: external declaration in primary source file
4078     # 10006: ignoring unknown option -fno-signed-zeros
4079     # 10148: ignoring unknown option -Wno-parentheses
4080     # 10156: ignoring option '-W'; no argument required
4081     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4082     # 11030: Warning unknown option --as-needed
4083     # 10156: ignoring option '-export'; no argument required
4084     check_ldflags -wd10156,11030
4085     # Allow to compile with optimizations
4086     check_ldflags -march=$cpu
4087     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4088     enable ebp_available
4089     if enabled x86_32; then
4090         icc_version=$($cc -dumpversion)
4091         test ${icc_version%%.*} -ge 11 &&
4092             check_cflags -falign-stack=maintain-16-byte ||
4093             disable aligned_stack
4094     fi
4095 elif enabled ccc; then
4096     # disable some annoying warnings
4097     add_cflags -msg_disable bitnotint
4098     add_cflags -msg_disable mixfuncvoid
4099     add_cflags -msg_disable nonstandcast
4100     add_cflags -msg_disable unsupieee
4101 elif enabled gcc; then
4102     check_optflags -fno-tree-vectorize
4103     check_cflags -Werror=implicit-function-declaration
4104     check_cflags -Werror=missing-prototypes
4105     check_cflags -Werror=vla
4106 elif enabled llvm_gcc; then
4107     check_cflags -mllvm -stack-alignment=16
4108 elif enabled clang; then
4109     check_cflags -mllvm -stack-alignment=16
4110     check_cflags -Qunused-arguments
4111     check_cflags -Werror=implicit-function-declaration
4112     check_cflags -Werror=missing-prototypes
4113 elif enabled armcc; then
4114     # 2523: use of inline assembler is deprecated
4115     add_cflags -W${armcc_opt},--diag_suppress=2523
4116     add_cflags -W${armcc_opt},--diag_suppress=1207
4117     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4118     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4119     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4120     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4121 elif enabled tms470; then
4122     add_cflags -pds=824 -pds=837
4123 elif enabled pathscale; then
4124     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4125 elif enabled msvc; then
4126     enabled x86_32 && disable aligned_stack
4127 fi
4128
4129 case $target_os in
4130     osf1)
4131         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4132     ;;
4133     plan9)
4134         add_cppflags -Dmain=plan9_main
4135     ;;
4136 esac
4137
4138 enabled_any $THREADS_LIST      && enable threads
4139
4140 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4141
4142 check_deps $CONFIG_LIST       \
4143            $CONFIG_EXTRA      \
4144            $HAVE_LIST         \
4145            $ALL_COMPONENTS    \
4146
4147
4148 if test $target_os = "haiku"; then
4149     disable memalign
4150     disable posix_memalign
4151 fi
4152
4153 ! enabled_any memalign posix_memalign aligned_malloc &&
4154     enabled_any $need_memalign && enable memalign_hack
4155
4156 # add_dep lib dep
4157 # -> enable ${lib}_deps_${dep}
4158 # -> add $dep to ${lib}_deps only once
4159 add_dep() {
4160     lib=$1
4161     dep=$2
4162     enabled "${lib}_deps_${dep}" && return 0
4163     enable  "${lib}_deps_${dep}"
4164     prepend "${lib}_deps" $dep
4165 }
4166
4167 # merge deps lib components
4168 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4169 merge_deps() {
4170     lib=$1
4171     shift
4172     for comp in $*; do
4173         enabled $comp || continue
4174         eval "dep=\"\$${comp}_deps\""
4175         for d in $dep; do
4176             add_dep $lib $d
4177         done
4178     done
4179 }
4180
4181 merge_deps libavfilter $FILTER_LIST
4182
4183 echo "install prefix            $prefix"
4184 echo "source path               $source_path"
4185 echo "C compiler                $cc"
4186 echo "ARCH                      $arch ($cpu)"
4187 if test "$build_suffix" != ""; then
4188     echo "build suffix              $build_suffix"
4189 fi
4190 if test "$progs_suffix" != ""; then
4191     echo "progs suffix              $progs_suffix"
4192 fi
4193 if test "$extra_version" != ""; then
4194     echo "version string suffix     $extra_version"
4195 fi
4196 echo "big-endian                ${bigendian-no}"
4197 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4198 if enabled x86; then
4199     echo "${yasmexe}                      ${yasm-no}"
4200     echo "MMX enabled               ${mmx-no}"
4201     echo "MMXEXT enabled            ${mmxext-no}"
4202     echo "3DNow! enabled            ${amd3dnow-no}"
4203     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4204     echo "SSE enabled               ${sse-no}"
4205     echo "SSSE3 enabled             ${ssse3-no}"
4206     echo "AVX enabled               ${avx-no}"
4207     echo "FMA4 enabled              ${fma4-no}"
4208     echo "CMOV enabled              ${cmov-no}"
4209     echo "CMOV is fast              ${fast_cmov-no}"
4210     echo "EBX available             ${ebx_available-no}"
4211     echo "EBP available             ${ebp_available-no}"
4212 fi
4213 if enabled arm; then
4214     echo "ARMv5TE enabled           ${armv5te-no}"
4215     echo "ARMv6 enabled             ${armv6-no}"
4216     echo "ARMv6T2 enabled           ${armv6t2-no}"
4217     echo "VFP enabled               ${vfp-no}"
4218     echo "NEON enabled              ${neon-no}"
4219     echo "THUMB enabled             ${thumb-no}"
4220 fi
4221 if enabled mips; then
4222     echo "MIPS FPU enabled          ${mipsfpu-no}"
4223     echo "MIPS32R2 enabled          ${mips32r2-no}"
4224     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4225     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4226 fi
4227 if enabled ppc; then
4228     echo "AltiVec enabled           ${altivec-no}"
4229     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4230     echo "dcbzl available           ${dcbzl-no}"
4231 fi
4232 if enabled sparc; then
4233     echo "VIS enabled               ${vis-no}"
4234 fi
4235 echo "debug symbols             ${debug-no}"
4236 echo "strip symbols             ${stripping-no}"
4237 echo "optimize for size         ${small-no}"
4238 echo "optimizations             ${optimizations-no}"
4239 echo "static                    ${static-no}"
4240 echo "shared                    ${shared-no}"
4241 echo "postprocessing support    ${postproc-no}"
4242 echo "new filter support        ${avfilter-no}"
4243 echo "network support           ${network-no}"
4244 echo "threading support         ${thread_type-no}"
4245 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4246 echo "SDL support               ${sdl-no}"
4247 echo "libdxva2 enabled          ${dxva2-no}"
4248 echo "libva enabled             ${vaapi-no}"
4249 echo "libvdpau enabled          ${vdpau-no}"
4250 echo "AVISynth enabled          ${avisynth-no}"
4251 echo "frei0r enabled            ${frei0r-no}"
4252 echo "gnutls enabled            ${gnutls-no}"
4253 echo "libaacplus enabled        ${libaacplus-no}"
4254 echo "libass enabled            ${libass-no}"
4255 echo "libcaca enabled           ${libcaca-no}"
4256 echo "libcdio support           ${libcdio-no}"
4257 echo "libcelt enabled           ${libcelt-no}"
4258 echo "libdc1394 support         ${libdc1394-no}"
4259 echo "libfaac enabled           ${libfaac-no}"
4260 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4261 echo "libgsm enabled            ${libgsm-no}"
4262 echo "libiec61883 support       ${libiec61883-no}"
4263 echo "libilbc enabled           ${libilbc-no}"
4264 echo "libmodplug enabled        ${libmodplug-no}"
4265 echo "libmp3lame enabled        ${libmp3lame-no}"
4266 echo "libnut enabled            ${libnut-no}"
4267 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4268 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4269 echo "libopencv support         ${libopencv-no}"
4270 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4271 echo "libopus enabled           ${libopus-no}"
4272 echo "libpulse enabled          ${libpulse-no}"
4273 echo "librtmp enabled           ${librtmp-no}"
4274 echo "libschroedinger enabled   ${libschroedinger-no}"
4275 echo "libsoxr enabled           ${libsoxr-no}"
4276 echo "libspeex enabled          ${libspeex-no}"
4277 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4278 echo "libtheora enabled         ${libtheora-no}"
4279 echo "libtwolame enabled        ${libtwolame-no}"
4280 echo "libutvideo enabled        ${libutvideo-no}"
4281 echo "libv4l2 enabled           ${libv4l2-no}"
4282 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4283 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4284 echo "libvorbis enabled         ${libvorbis-no}"
4285 echo "libvpx enabled            ${libvpx-no}"
4286 echo "libx264 enabled           ${libx264-no}"
4287 echo "libxavs enabled           ${libxavs-no}"
4288 echo "libxvid enabled           ${libxvid-no}"
4289 echo "openal enabled            ${openal-no}"
4290 echo "openssl enabled           ${openssl-no}"
4291 echo "zlib enabled              ${zlib-no}"
4292 echo "bzlib enabled             ${bzlib-no}"
4293 echo "texi2html enabled         ${texi2html-no}"
4294 echo "perl enabled              ${perl-no}"
4295 echo "pod2man enabled           ${pod2man-no}"
4296 echo "makeinfo enabled          ${makeinfo-no}"
4297 test -n "$random_seed" &&
4298     echo "random seed               ${random_seed}"
4299 echo
4300
4301 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4302     echo "Enabled ${type}s:"
4303     eval list=\$$(toupper $type)_LIST
4304     print_enabled '_*' $list | sort | pr -r -3 -t
4305     echo
4306 done
4307
4308 license="LGPL version 2.1 or later"
4309 if enabled nonfree; then
4310     license="nonfree and unredistributable"
4311 elif enabled gplv3; then
4312     license="GPL version 3 or later"
4313 elif enabled lgplv3; then
4314     license="LGPL version 3 or later"
4315 elif enabled gpl; then
4316     license="GPL version 2 or later"
4317 fi
4318
4319 echo "License: $license"
4320
4321 echo "Creating config.mak and config.h..."
4322
4323 test -e Makefile || $ln_s "$source_path/Makefile" .
4324
4325 enabled stripping || strip="echo skipping strip"
4326
4327 config_files="$TMPH config.mak"
4328
4329 cat > config.mak <<EOF
4330 # Automatically generated by configure - do not modify!
4331 ifndef FFMPEG_CONFIG_MAK
4332 FFMPEG_CONFIG_MAK=1
4333 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4334 prefix=$prefix
4335 LIBDIR=\$(DESTDIR)$libdir
4336 SHLIBDIR=\$(DESTDIR)$shlibdir
4337 INCDIR=\$(DESTDIR)$incdir
4338 BINDIR=\$(DESTDIR)$bindir
4339 DATADIR=\$(DESTDIR)$datadir
4340 MANDIR=\$(DESTDIR)$mandir
4341 SRC_PATH=$source_path
4342 ifndef MAIN_MAKEFILE
4343 SRC_PATH:=\$(SRC_PATH:.%=..%)
4344 endif
4345 CC_IDENT=$cc_ident
4346 ARCH=$arch
4347 CC=$cc
4348 CXX=$cxx
4349 AS=$as
4350 LD=$ld
4351 DEPCC=$dep_cc
4352 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4353 DEPAS=$as
4354 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4355 YASM=$yasmexe
4356 DEPYASM=$yasmexe
4357 AR=$ar
4358 ARFLAGS=$arflags
4359 AR_O=$ar_o
4360 RANLIB=$ranlib
4361 CP=cp -p
4362 LN_S=$ln_s
4363 STRIP=$strip
4364 CPPFLAGS=$CPPFLAGS
4365 CFLAGS=$CFLAGS
4366 CXXFLAGS=$CXXFLAGS
4367 ASFLAGS=$ASFLAGS
4368 AS_C=$AS_C
4369 AS_O=$AS_O
4370 CC_C=$CC_C
4371 CC_E=$CC_E
4372 CC_O=$CC_O
4373 CXX_C=$CXX_C
4374 CXX_O=$CXX_O
4375 LD_O=$LD_O
4376 LD_LIB=$LD_LIB
4377 LD_PATH=$LD_PATH
4378 DLLTOOL=$dlltool
4379 LDFLAGS=$LDFLAGS
4380 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4381 SHFLAGS=$SHFLAGS
4382 YASMFLAGS=$YASMFLAGS
4383 BUILDSUF=$build_suffix
4384 PROGSSUF=$progs_suffix
4385 FULLNAME=$FULLNAME
4386 LIBPREF=$LIBPREF
4387 LIBSUF=$LIBSUF
4388 LIBNAME=$LIBNAME
4389 SLIBPREF=$SLIBPREF
4390 SLIBSUF=$SLIBSUF
4391 EXESUF=$EXESUF
4392 EXTRA_VERSION=$extra_version
4393 CCDEP=$CCDEP
4394 CXXDEP=$CXXDEP
4395 CCDEP_FLAGS=$CCDEP_FLAGS
4396 ASDEP=$ASDEP
4397 ASDEP_FLAGS=$ASDEP_FLAGS
4398 CC_DEPFLAGS=$CC_DEPFLAGS
4399 AS_DEPFLAGS=$AS_DEPFLAGS
4400 HOSTCC=$host_cc
4401 HOSTLD=$host_ld
4402 HOSTCFLAGS=$host_cflags
4403 HOSTEXESUF=$HOSTEXESUF
4404 HOSTLDFLAGS=$host_ldflags
4405 HOSTLIBS=$host_libs
4406 DEPHOSTCC=$host_cc
4407 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4408 HOSTCCDEP=$HOSTCCDEP
4409 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4410 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4411 HOSTCC_C=$HOSTCC_C
4412 HOSTCC_O=$HOSTCC_O
4413 HOSTLD_O=$HOSTLD_O
4414 TARGET_EXEC=$target_exec
4415 TARGET_PATH=$target_path
4416 LIBS-ffplay=$sdl_libs
4417 CFLAGS-ffplay=$sdl_cflags
4418 ZLIB=$($ldflags_filter -lz)
4419 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4420 EXTRALIBS=$extralibs
4421 COMPAT_OBJS=$compat_objs
4422 EXEOBJS=$exeobjs
4423 INSTALL=$install
4424 LIBTARGET=${LIBTARGET}
4425 SLIBNAME=${SLIBNAME}
4426 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4427 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4428 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4429 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4430 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4431 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4432 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4433 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4434 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4435 NOREDZONE_FLAGS=$noredzone_flags
4436 EOF
4437
4438 get_version(){
4439     lcname=lib${1}
4440     name=$(toupper $lcname)
4441     file=$source_path/$lcname/version.h
4442     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4443     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4444     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4445     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4446 }
4447
4448 get_version_old(){
4449     name=$1
4450     file=$source_path/$2
4451 # This condition will be removed when we stop supporting old libpostproc versions
4452 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4453     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4454     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4455 fi
4456     lcname=$(tolower $name)
4457     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4458     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4459 }
4460
4461 get_version_old LIBPOSTPROC libpostproc/version.h
4462
4463 map 'get_version $v' $LIBRARY_LIST
4464
4465 cat > $TMPH <<EOF
4466 /* Automatically generated by configure - do not modify! */
4467 #ifndef FFMPEG_CONFIG_H
4468 #define FFMPEG_CONFIG_H
4469 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4470 #define FFMPEG_LICENSE "$(c_escape $license)"
4471 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4472 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4473 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4474 #define av_restrict $_restrict
4475 #define EXTERN_PREFIX "${extern_prefix}"
4476 #define EXTERN_ASM ${extern_prefix}
4477 #define SLIBSUF "$SLIBSUF"
4478 #define HAVE_MMX2 HAVE_MMXEXT
4479 EOF
4480
4481 test -n "$assert_level" &&
4482     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4483
4484 test -n "$malloc_prefix" &&
4485     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4486
4487 if enabled yasm; then
4488     append config_files $TMPASM
4489     printf '' >$TMPASM
4490 fi
4491
4492 print_config ARCH_   "$config_files" $ARCH_LIST
4493 print_config HAVE_   "$config_files" $HAVE_LIST
4494 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4495                                      $CONFIG_EXTRA      \
4496                                      $ALL_COMPONENTS    \
4497
4498 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4499 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4500
4501 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4502 cp_if_changed $TMPH config.h
4503 touch .config
4504
4505 enabled yasm && cp_if_changed $TMPASM config.asm
4506
4507 cat > $TMPH <<EOF
4508 /* Generated by ffconf */
4509 #ifndef AVUTIL_AVCONFIG_H
4510 #define AVUTIL_AVCONFIG_H
4511 EOF
4512
4513 test "$postproc_version" != current && cat >> $TMPH <<EOF
4514 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4515 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4516 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4517 EOF
4518
4519 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4520
4521 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4522
4523 cp_if_changed $TMPH libavutil/avconfig.h
4524
4525 if test -n "$WARNINGS"; then
4526     printf "\n$WARNINGS"
4527     enabled fatal_warnings && exit 1
4528 fi
4529
4530 # build pkg-config files
4531
4532 pkgconfig_generate(){
4533     name=$1
4534     shortname=${name#lib}${build_suffix}
4535     comment=$2
4536     version=$3
4537     libs=$4
4538     requires=$5
4539     enabled ${name#lib} || return 0
4540     mkdir -p $name
4541     cat <<EOF > $name/$name.pc
4542 prefix=$prefix
4543 exec_prefix=\${prefix}
4544 libdir=$libdir
4545 includedir=$incdir
4546
4547 Name: $name
4548 Description: $comment
4549 Version: $version
4550 Requires: $(enabled shared || echo $requires)
4551 Requires.private: $(enabled shared && echo $requires)
4552 Conflicts:
4553 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4554 Libs.private: $(enabled shared && echo $libs)
4555 Cflags: -I\${includedir}
4556 EOF
4557
4558 mkdir -p doc/examples/pc-uninstalled
4559 includedir=${source_path}
4560 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4561     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4562 prefix=
4563 exec_prefix=
4564 libdir=\${pcfiledir}/../../../$name
4565 includedir=${includedir}
4566
4567 Name: $name
4568 Description: $comment
4569 Version: $version
4570 Requires: $requires
4571 Conflicts:
4572 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4573 Cflags: -I\${includedir}
4574 EOF
4575 }
4576
4577 libavfilter_pc_deps="libavutil = $LIBAVUTIL_VERSION"
4578 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4579 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4580 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample = $LIBAVRESAMPLE_VERSION,"
4581 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4582 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4583 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4584 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4585
4586 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4587 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4588
4589 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4590 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4591 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4592 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4593 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4594 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4595 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4596 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4597 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4598
4599 fix_ffmpeg_remote(){
4600     git_remote_from=$1
4601     git_remote_to=$2
4602     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4603     if [ "$fixme_remote" != "" ]; then
4604         echolog "
4605 Outdated domain in git config, the official domain for ffmpeg git is since
4606 November 2011, source.ffmpeg.org, both the old and the new point to the same
4607 repository and server. To update it enter the following commands:
4608 "
4609         for remote in $fixme_remote; do
4610             echolog "git remote set-url $remote $git_remote_to"
4611         done
4612     fi
4613 }
4614
4615 if test -f "$source_path/.git/config"; then
4616     remote_from=git.videolan.org
4617     remote_to=source.ffmpeg.org
4618     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4619     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4620 fi