git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Help options:
  63   --help                   print this message
  64   --list-decoders          show all available decoders
  65   --list-encoders          show all available encoders
  66   --list-hwaccels          show all available hardware accelerators
  67   --list-demuxers          show all available demuxers
  68   --list-muxers            show all available muxers
  69   --list-parsers           show all available parsers
  70   --list-protocols         show all available protocols
  71   --list-bsfs              show all available bitstream filters
  72   --list-indevs            show all available input devices
  73   --list-outdevs           show all available output devices
  74   --list-filters           show all available filters
  75
  76 Standard options:
  77   --logfile=FILE           log tests and output to FILE [config.log]
  78   --disable-logging        do not log configure debug information
  79   --prefix=PREFIX          install in PREFIX [$prefix]
  80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  82   --libdir=DIR             install libs in DIR [PREFIX/lib]
  83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  84   --incdir=DIR             install includes in DIR [PREFIX/include]
  85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  86
  87 Licensing options:
  88   --enable-gpl             allow use of GPL code, the resulting libs
  89                            and binaries will be under GPL [no]
  90   --enable-version3        upgrade (L)GPL to version 3 [no]
  91   --enable-nonfree         allow use of nonfree code, the resulting libs
  92                            and binaries will be unredistributable [no]
  93
  94 Configuration options:
  95   --disable-static         do not build static libraries [no]
  96   --enable-shared          build shared libraries [no]
  97   --enable-small           optimize for size instead of speed
  98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101
 102 Documentation options:
 103   --disable-doc            do not build documentation
 104   --disable-htmlpages      do not build HTML documentation pages
 105   --disable-manpages       do not build man documentation pages
 106   --disable-podpages       do not build POD documentation pages
 107   --disable-txtpages       do not build text documentation pages
 108
 109 Component options:
 110   --disable-ffmpeg         disable ffmpeg build
 111   --disable-ffplay         disable ffplay build
 112   --disable-ffprobe        disable ffprobe build
 113   --disable-ffserver       disable ffserver build
 114   --disable-avdevice       disable libavdevice build
 115   --disable-avcodec        disable libavcodec build
 116   --disable-avformat       disable libavformat build
 117   --disable-swresample     disable libswresample build
 118   --disable-swscale        disable libswscale build
 119   --disable-postproc       disable libpostproc build
 120   --disable-avfilter       disable libavfilter build
 121   --enable-avresample      enable libavresample build [no]
 122   --disable-pthreads       disable pthreads [auto]
 123   --disable-w32threads     disable Win32 threads [auto]
 124   --disable-os2threads     disable OS/2 threads [auto]
 125   --enable-x11grab         enable X11 grabbing [no]
 126   --disable-network        disable network support [no]
 127   --disable-dct            disable DCT code
 128   --disable-dwt            disable DWT code
 129   --disable-lsp            disable LSP code
 130   --disable-mdct           disable MDCT code
 131   --disable-rdft           disable RDFT code
 132   --disable-fft            disable FFT code
 133   --enable-dxva2           enable DXVA2 code
 134   --enable-vaapi           enable VAAPI code [autodetect]
 135   --enable-vda             enable VDA code   [autodetect]
 136   --enable-vdpau           enable VDPAU code [autodetect]
 137
 138 Individual component options:
 139   --disable-everything     disable all components listed below
 140   --disable-encoder=NAME   disable encoder NAME
 141   --enable-encoder=NAME    enable encoder NAME
 142   --disable-encoders       disable all encoders
 143   --disable-decoder=NAME   disable decoder NAME
 144   --enable-decoder=NAME    enable decoder NAME
 145   --disable-decoders       disable all decoders
 146   --disable-hwaccel=NAME   disable hwaccel NAME
 147   --enable-hwaccel=NAME    enable hwaccel NAME
 148   --disable-hwaccels       disable all hwaccels
 149   --disable-muxer=NAME     disable muxer NAME
 150   --enable-muxer=NAME      enable muxer NAME
 151   --disable-muxers         disable all muxers
 152   --disable-demuxer=NAME   disable demuxer NAME
 153   --enable-demuxer=NAME    enable demuxer NAME
 154   --disable-demuxers       disable all demuxers
 155   --enable-parser=NAME     enable parser NAME
 156   --disable-parser=NAME    disable parser NAME
 157   --disable-parsers        disable all parsers
 158   --enable-bsf=NAME        enable bitstream filter NAME
 159   --disable-bsf=NAME       disable bitstream filter NAME
 160   --disable-bsfs           disable all bitstream filters
 161   --enable-protocol=NAME   enable protocol NAME
 162   --disable-protocol=NAME  disable protocol NAME
 163   --disable-protocols      disable all protocols
 164   --enable-indev=NAME      enable input device NAME
 165   --disable-indev=NAME     disable input device NAME
 166   --disable-indevs         disable input devices
 167   --enable-outdev=NAME     enable output device NAME
 168   --disable-outdev=NAME    disable output device NAME
 169   --disable-outdevs        disable output devices
 170   --disable-devices        disable all devices
 171   --enable-filter=NAME     enable filter NAME
 172   --disable-filter=NAME    disable filter NAME
 173   --disable-filters        disable all filters
 174
 175 External library support:
 176   --enable-avisynth        enable reading of AVISynth script files [no]
 177   --enable-bzlib           enable bzlib [autodetect]
 178   --enable-fontconfig      enable fontconfig
 179   --enable-frei0r          enable frei0r video filtering
 180   --enable-gnutls          enable gnutls [no]
 181   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 182   --enable-libass          enable libass subtitles rendering [no]
 183   --enable-libbluray       enable BluRay reading using libbluray [no]
 184   --enable-libcaca         enable textual display using libcaca
 185   --enable-libcelt         enable CELT decoding via libcelt [no]
 186   --enable-libcdio         enable audio CD grabbing with libcdio
 187   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 188                            and libraw1394 [no]
 189   --enable-libfaac         enable AAC encoding via libfaac [no]
 190   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 191   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
 192   --enable-libfreetype     enable libfreetype [no]
 193   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 194   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 195   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 196   --enable-libmodplug      enable ModPlug via libmodplug [no]
 197   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 198   --enable-libnut          enable NUT (de)muxing via libnut,
 199                            native (de)muxer exists [no]
 200   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 201   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 202   --enable-libopencv       enable video filtering via libopencv [no]
 203   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 204   --enable-libopus         enable Opus decoding via libopus [no]
 205   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 206   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 207   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 208   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 209   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 210   --enable-libtheora       enable Theora encoding via libtheora [no]
 211   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
 212   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 213   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 214   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 215   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 216   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 217                            native implementation exists [no]
 218   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
 219   --enable-libx264         enable H.264 encoding via x264 [no]
 220   --enable-libxavs         enable AVS encoding via xavs [no]
 221   --enable-libxvid         enable Xvid encoding via xvidcore,
 222                            native MPEG-4/Xvid encoder exists [no]
 223   --enable-openal          enable OpenAL 1.1 capture support [no]
 224   --enable-openssl         enable openssl [no]
 225   --enable-zlib            enable zlib [autodetect]
 226
 227 Advanced options (experts only):
 228   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 229   --enable-cross-compile   assume a cross-compiler is used
 230   --sysroot=PATH           root of cross-build tree
 231   --sysinclude=PATH        location of cross-build system headers
 232   --target-os=OS           compiler targets OS [$target_os]
 233   --target-exec=CMD        command to run executables on target
 234   --target-path=DIR        path to view of build directory on target
 235   --nm=NM                  use nm tool NM [$nm_default]
 236   --ar=AR                  use archive tool AR [$ar_default]
 237   --as=AS                  use assembler AS [$as_default]
 238   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 239   --cc=CC                  use C compiler CC [$cc_default]
 240   --cxx=CXX                use C compiler CXX [$cxx_default]
 241   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 242   --ld=LD                  use linker LD [$ld_default]
 243   --host-cc=HOSTCC         use host C compiler HOSTCC
 244   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 245   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 246   --host-libs=HLIBS        use libs HLIBS when linking for host
 247   --host-os=OS             compiler host OS [$target_os]
 248   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 249   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 250   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 251   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 252   --extra-version=STRING   version string suffix []
 253   --optflags=OPTFLAGS      override optimization-related compiler flags
 254   --build-suffix=SUFFIX    library name suffix []
 255   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 256   --progs-suffix=SUFFIX    program name suffix []
 257   --arch=ARCH              select architecture [$arch]
 258   --cpu=CPU                select the minimum required CPU (affects
 259                            instruction selection, may crash on older CPUs)
 260   --enable-pic             build position-independent code
 261   --enable-sram            allow use of on-chip SRAM
 262   --enable-thumb           compile for Thumb instruction set
 263   --disable-symver         disable symbol versioning
 264   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 265   --disable-safe-bitstream-reader
 266                            disable buffer boundary checking in bitreaders
 267                            (faster, but may crash)
 268   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 269
 270 Optimization options (experts only):
 271   --disable-asm            disable all assembler optimizations
 272   --disable-altivec        disable AltiVec optimizations
 273   --disable-amd3dnow       disable 3DNow! optimizations
 274   --disable-amd3dnowext    disable 3DNow! extended optimizations
 275   --disable-mmx            disable MMX optimizations
 276   --disable-mmxext         disable MMXEXT optimizations
 277   --disable-sse            disable SSE optimizations
 278   --disable-ssse3          disable SSSE3 optimizations
 279   --disable-avx            disable AVX optimizations
 280   --disable-fma4           disable FMA4 optimizations
 281   --disable-armv5te        disable armv5te optimizations
 282   --disable-armv6          disable armv6 optimizations
 283   --disable-armv6t2        disable armv6t2 optimizations
 284   --disable-armvfp         disable ARM VFP optimizations
 285   --disable-mmi            disable MMI optimizations
 286   --disable-neon           disable NEON optimizations
 287   --disable-vis            disable VIS optimizations
 288   --disable-yasm           disable use of yasm assembler
 289   --disable-mips32r2       disable MIPS32R2 optimizations
 290   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 291   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 292   --disable-mipsfpu        disable floating point MIPS optimizations
 293   --disable-fast-unaligned consider unaligned accesses slow
 294   --postproc-version=V     build libpostproc version V.
 295                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
 296
 297 Developer options (useful when working on FFmpeg itself):
 298   --enable-coverage        build with test coverage instrumentation
 299   --disable-debug          disable debugging symbols
 300   --enable-debug=LEVEL     set the debug level [$debuglevel]
 301   --disable-optimizations  disable compiler optimizations
 302   --enable-extra-warnings  enable more compiler warnings
 303   --disable-stripping      disable stripping of executables and shared libraries
 304   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 305                            2 causes a slowdown at runtime.
 306   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 307   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 308                            leaks and errors, using the specified valgrind binary.
 309                            Cannot be combined with --target-exec
 310   --samples=PATH           location of test samples for FATE, if not set use
 311                            \$FATE_SAMPLES at make invocation time.
 312   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 313                            should be used only for debugging purposes)
 314   --enable-random          randomly enable/disable components
 315   --disable-random
 316   --enable-random=LIST     randomly enable/disable specific components or
 317   --disable-random=LIST    component groups. LIST is a comma-separated list
 318                            of NAME[:PROB] entries where NAME is a component
 319                            (group) and PROB the probability associated with
 320                            NAME (default 0.5).
 321   --random-seed=VALUE      seed value for --enable/disable-random
 322
 323 NOTE: Object files are built at the place where configure is launched.
 324 EOF
 325   exit 0
 326 }
 327
 328 quotes='""'
 329
 330 log(){
 331     echo "$@" >> $logfile
 332 }
 333
 334 log_file(){
 335     log BEGIN $1
 336     pr -n -t $1 >> $logfile
 337     log END $1
 338 }
 339
 340 echolog(){
 341     log "$@"
 342     echo "$@"
 343 }
 344
 345 warn(){
 346     log "WARNING: $*"
 347     WARNINGS="${WARNINGS}WARNING: $*\n"
 348 }
 349
 350 die(){
 351     echolog "$@"
 352     cat <<EOF
 353
 354 If you think configure made a mistake, make sure you are using the latest
 355 version from Git.  If the latest version fails, report the problem to the
 356 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 357 EOF
 358     if disabled logging; then
 359         cat <<EOF
 360 Rerun configure with logging enabled (do not use --disable-logging), and
 361 include the log this produces with your report.
 362 EOF
 363     else
 364 cat <<EOF
 365 Include the log file "$logfile" produced by configure as this will help
 366 solving the problem.
 367 EOF
 368     fi
 369     exit 1
 370 }
 371
 372 # Avoid locale weirdness, besides we really just want to translate ASCII.
 373 toupper(){
 374     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 375 }
 376
 377 tolower(){
 378     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 379 }
 380
 381 c_escape(){
 382     echo "$*" | sed 's/["\\]/\\\0/g'
 383 }
 384
 385 sh_quote(){
 386     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 387     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 388     echo "$v"
 389 }
 390
 391 cleanws(){
 392     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 393 }
 394
 395 filter(){
 396     pat=$1
 397     shift
 398     for v; do
 399         eval "case $v in $pat) echo $v ;; esac"
 400     done
 401 }
 402
 403 filter_out(){
 404     pat=$1
 405     shift
 406     for v; do
 407         eval "case $v in $pat) ;; *) echo $v ;; esac"
 408     done
 409 }
 410
 411 map(){
 412     m=$1
 413     shift
 414     for v; do eval $m; done
 415 }
 416
 417 set_all(){
 418     value=$1
 419     shift
 420     for var in $*; do
 421         eval $var=$value
 422     done
 423 }
 424
 425 set_weak(){
 426     value=$1
 427     shift
 428     for var; do
 429         eval : \${$var:=$value}
 430     done
 431 }
 432
 433 set_safe(){
 434     var=$1
 435     shift
 436     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 437 }
 438
 439 get_safe(){
 440     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 441 }
 442
 443 pushvar(){
 444     for var in $*; do
 445         eval level=\${${var}_level:=0}
 446         eval ${var}_${level}="\$$var"
 447         eval ${var}_level=$(($level+1))
 448     done
 449 }
 450
 451 popvar(){
 452     for var in $*; do
 453         eval level=\${${var}_level:-0}
 454         test $level = 0 && continue
 455         eval level=$(($level-1))
 456         eval $var="\${${var}_${level}}"
 457         eval ${var}_level=$level
 458         eval unset ${var}_${level}
 459     done
 460 }
 461
 462 enable(){
 463     set_all yes $*
 464 }
 465
 466 disable(){
 467     set_all no $*
 468 }
 469
 470 enable_weak(){
 471     set_weak yes $*
 472 }
 473
 474 disable_weak(){
 475     set_weak no $*
 476 }
 477
 478 enable_safe(){
 479     for var; do
 480         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 481     done
 482 }
 483
 484 disable_safe(){
 485     for var; do
 486         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 487     done
 488 }
 489
 490 do_enable_deep(){
 491     for var; do
 492         enabled $var && continue
 493         eval sel="\$${var}_select"
 494         eval sgs="\$${var}_suggest"
 495         pushvar var sgs
 496         enable_deep $sel
 497         popvar sgs
 498         enable_deep_weak $sgs
 499         popvar var
 500     done
 501 }
 502
 503 enable_deep(){
 504     do_enable_deep $*
 505     enable $*
 506 }
 507
 508 enable_deep_weak(){
 509     do_enable_deep $*
 510     enable_weak $*
 511 }
 512
 513 enabled(){
 514     test "${1#!}" = "$1" && op== || op=!=
 515     eval test "x\$${1#!}" $op "xyes"
 516 }
 517
 518 disabled(){
 519     test "${1#!}" = "$1" && op== || op=!=
 520     eval test "x\$${1#!}" $op "xno"
 521 }
 522
 523 enabled_all(){
 524     for opt; do
 525         enabled $opt || return 1
 526     done
 527 }
 528
 529 disabled_all(){
 530     for opt; do
 531         disabled $opt || return 1
 532     done
 533 }
 534
 535 enabled_any(){
 536     for opt; do
 537         enabled $opt && return 0
 538     done
 539 }
 540
 541 disabled_any(){
 542     for opt; do
 543         disabled $opt && return 0
 544     done
 545     return 1
 546 }
 547
 548 set_default(){
 549     for opt; do
 550         eval : \${$opt:=\$${opt}_default}
 551     done
 552 }
 553
 554 is_in(){
 555     value=$1
 556     shift
 557     for var in $*; do
 558         [ $var = $value ] && return 0
 559     done
 560     return 1
 561 }
 562
 563 check_deps(){
 564     for cfg; do
 565         cfg="${cfg#!}"
 566         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 567         disabled ${cfg}_checking && continue
 568         enable ${cfg}_checking
 569
 570         eval dep_all="\$${cfg}_deps"
 571         eval dep_any="\$${cfg}_deps_any"
 572         eval dep_sel="\$${cfg}_select"
 573         eval dep_sgs="\$${cfg}_suggest"
 574         eval dep_ifa="\$${cfg}_if"
 575         eval dep_ifn="\$${cfg}_if_any"
 576
 577         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 578         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 579         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 580
 581         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 582         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 583         enabled_all  $dep_all || disable $cfg
 584         enabled_any  $dep_any || disable $cfg
 585         disabled_any $dep_sel && disable $cfg
 586
 587         if enabled $cfg; then
 588             eval dep_extralibs="\$${cfg}_extralibs"
 589             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 590             enable_deep $dep_sel
 591             enable_deep_weak $dep_sgs
 592         fi
 593
 594         disable ${cfg}_checking
 595     done
 596 }
 597
 598 print_config_h(){
 599     enabled $1 && v=1 || v=0
 600     echo "#define $2 $v"
 601 }
 602
 603 print_config_mak(){
 604     enabled $1 && v= || v=!
 605     echo "$v$2=yes"
 606 }
 607
 608 print_config_asm(){
 609     enabled $1 && v=1 || v=0
 610     echo "%define $2 $v"
 611 }
 612
 613 print_config(){
 614     pfx=$1
 615     files=$2
 616     shift 2
 617     for cfg; do
 618         ucname="$(toupper $cfg)"
 619         for f in $files; do
 620             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 621         done
 622     done
 623 }
 624
 625 print_enabled(){
 626     test "$1" = -n && end=" " && shift || end="\n"
 627     suf=$1
 628     shift
 629     for v; do
 630         enabled $v && printf "%s$end" ${v%$suf};
 631     done
 632 }
 633
 634 append(){
 635     var=$1
 636     shift
 637     eval "$var=\"\$$var $*\""
 638 }
 639
 640 prepend(){
 641     var=$1
 642     shift
 643     eval "$var=\"$* \$$var\""
 644 }
 645
 646 add_cppflags(){
 647     append CPPFLAGS "$@"
 648 }
 649
 650 add_cflags(){
 651     append CFLAGS $($cflags_filter "$@")
 652 }
 653
 654 add_cxxflags(){
 655     append CXXFLAGS $($cflags_filter "$@")
 656 }
 657
 658 add_asflags(){
 659     append ASFLAGS $($asflags_filter "$@")
 660 }
 661
 662 add_ldflags(){
 663     append LDFLAGS $($ldflags_filter "$@")
 664 }
 665
 666 add_extralibs(){
 667     prepend extralibs $($ldflags_filter "$@")
 668 }
 669
 670 add_host_cflags(){
 671     append host_cflags $($host_cflags_filter "$@")
 672 }
 673
 674 add_host_ldflags(){
 675     append host_ldflags $($host_ldflags_filter "$@")
 676 }
 677
 678 check_cmd(){
 679     log "$@"
 680     "$@" >> $logfile 2>&1
 681 }
 682
 683 cc_o(){
 684     eval printf '%s\\n' $CC_O
 685 }
 686
 687 cc_e(){
 688     eval printf '%s\\n' $CC_E
 689 }
 690
 691 check_cc(){
 692     log check_cc "$@"
 693     cat > $TMPC
 694     log_file $TMPC
 695     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 696 }
 697
 698 check_cxx(){
 699     log check_cxx "$@"
 700     cat > $TMPCPP
 701     log_file $TMPCPP
 702     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
 703 }
 704
 705 check_cpp(){
 706     log check_cpp "$@"
 707     cat > $TMPC
 708     log_file $TMPC
 709     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 710 }
 711
 712 check_as(){
 713     log check_as "$@"
 714     cat > $TMPC
 715     log_file $TMPC
 716     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C -o $TMPO $TMPC
 717 }
 718
 719 check_inline_asm(){
 720     log check_inline_asm "$@"
 721     name="$1"
 722     code="$2"
 723     shift 2
 724     disable $name
 725     check_as "$@" <<EOF && enable $name
 726 void foo(void){ __asm__ volatile($code); }
 727 EOF
 728 }
 729
 730 check_yasm(){
 731     log check_yasm "$@"
 732     echo "$1" > $TMPS
 733     log_file $TMPS
 734     shift 1
 735     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 736 }
 737
 738 check_ld(){
 739     log check_ld "$@"
 740     type=$1
 741     shift 1
 742     flags=''
 743     libs=''
 744     for f; do
 745         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 746     done
 747     check_$type $($cflags_filter $flags) || return
 748     flags=$($ldflags_filter $flags)
 749     libs=$($ldflags_filter $libs)
 750     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 751 }
 752
 753 check_code(){
 754     log check_code "$@"
 755     check=$1
 756     headers=$2
 757     code=$3
 758     shift 3
 759     {
 760         for hdr in $headers; do
 761             echo "#include <$hdr>"
 762         done
 763         echo "int main(void) { $code; return 0; }"
 764     } | check_$check "$@"
 765 }
 766
 767 check_cppflags(){
 768     log check_cppflags "$@"
 769     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 770 int x;
 771 EOF
 772 }
 773
 774 check_cflags(){
 775     log check_cflags "$@"
 776     set -- $($cflags_filter "$@")
 777     check_cc "$@" <<EOF && append CFLAGS "$@"
 778 int x;
 779 EOF
 780 }
 781
 782 check_cxxflags(){
 783     log check_cxxflags "$@"
 784     set -- $($cflags_filter "$@")
 785     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 786 int x;
 787 EOF
 788 }
 789
 790 test_ldflags(){
 791     log test_ldflags "$@"
 792     check_ld "cc" "$@" <<EOF
 793 int main(void){ return 0; }
 794 EOF
 795 }
 796
 797 check_ldflags(){
 798     log check_ldflags "$@"
 799     test_ldflags "$@" && add_ldflags "$@"
 800 }
 801
 802 check_header(){
 803     log check_header "$@"
 804     header=$1
 805     shift
 806     disable_safe $header
 807     check_cpp "$@" <<EOF && enable_safe $header
 808 #include <$header>
 809 int x;
 810 EOF
 811 }
 812
 813 check_func(){
 814     log check_func "$@"
 815     func=$1
 816     shift
 817     disable $func
 818     check_ld "cc" "$@" <<EOF && enable $func
 819 extern int $func();
 820 int main(void){ $func(); }
 821 EOF
 822 }
 823
 824 check_mathfunc(){
 825     log check_mathfunc "$@"
 826     func=$1
 827     shift
 828     disable $func
 829     check_ld "cc" "$@" <<EOF && enable $func
 830 #include <math.h>
 831 float foo(float f) { return $func(f); }
 832 int main(void){ return (int) foo; }
 833 EOF
 834 }
 835
 836 check_func_headers(){
 837     log check_func_headers "$@"
 838     headers=$1
 839     funcs=$2
 840     shift 2
 841     {
 842         for hdr in $headers; do
 843             echo "#include <$hdr>"
 844         done
 845         for func in $funcs; do
 846             echo "long check_$func(void) { return (long) $func; }"
 847         done
 848         echo "int main(void) { return 0; }"
 849     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 850 }
 851
 852 check_class_headers_cpp(){
 853     log check_class_headers_cpp "$@"
 854     headers=$1
 855     classes=$2
 856     shift 2
 857     {
 858         for hdr in $headers; do
 859             echo "#include <$hdr>"
 860         done
 861         echo "int main(void) { "
 862         i=1
 863         for class in $classes; do
 864             echo "$class obj$i;"
 865             i=$(expr $i + 1)
 866         done
 867         echo "return 0; }"
 868     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 869 }
 870
 871 check_cpp_condition(){
 872     log check_cpp_condition "$@"
 873     header=$1
 874     condition=$2
 875     shift 2
 876     check_cpp "$@" <<EOF
 877 #include <$header>
 878 #if !($condition)
 879 #error "unsatisfied condition: $condition"
 880 #endif
 881 EOF
 882 }
 883
 884 check_lib(){
 885     log check_lib "$@"
 886     header="$1"
 887     func="$2"
 888     shift 2
 889     check_header $header && check_func $func "$@" && add_extralibs "$@"
 890 }
 891
 892 check_lib2(){
 893     log check_lib2 "$@"
 894     headers="$1"
 895     funcs="$2"
 896     shift 2
 897     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 898 }
 899
 900 check_lib_cpp(){
 901     log check_lib_cpp "$@"
 902     headers="$1"
 903     classes="$2"
 904     shift 2
 905     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 906 }
 907
 908 check_pkg_config(){
 909     log check_pkg_config "$@"
 910     pkg="$1"
 911     headers="$2"
 912     funcs="$3"
 913     shift 3
 914     $pkg_config --exists $pkg 2>/dev/null || return
 915     pkg_cflags=$($pkg_config --cflags $pkg)
 916     pkg_libs=$($pkg_config --libs $pkg)
 917     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 918         set_safe ${pkg}_cflags $pkg_cflags   &&
 919         set_safe ${pkg}_libs   $pkg_libs
 920 }
 921
 922 check_exec(){
 923     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 924 }
 925
 926 check_exec_crash(){
 927     code=$(cat)
 928
 929     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 930     # are safe but may not be available everywhere.  Thus we use
 931     # raise(SIGTERM) instead.  The check is run in a subshell so we
 932     # can redirect the "Terminated" message from the shell.  SIGBUS
 933     # is not defined by standard C so it is used conditionally.
 934
 935     (check_exec "$@") >> $logfile 2>&1 <<EOF
 936 #include <signal.h>
 937 static void sighandler(int sig){
 938     raise(SIGTERM);
 939 }
 940 int func(void){
 941     $code
 942 }
 943 int (*func_ptr)(void) = func;
 944 int main(void){
 945     signal(SIGILL, sighandler);
 946     signal(SIGFPE, sighandler);
 947     signal(SIGSEGV, sighandler);
 948 #ifdef SIGBUS
 949     signal(SIGBUS, sighandler);
 950 #endif
 951     return func_ptr();
 952 }
 953 EOF
 954 }
 955
 956 check_type(){
 957     log check_type "$@"
 958     headers=$1
 959     type=$2
 960     shift 2
 961     disable_safe "$type"
 962     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
 963 }
 964
 965 check_struct(){
 966     log check_type "$@"
 967     headers=$1
 968     struct=$2
 969     member=$3
 970     shift 3
 971     disable_safe "${struct}_${member}"
 972     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
 973         enable_safe "${struct}_${member}"
 974 }
 975
 976 require(){
 977     name="$1"
 978     header="$2"
 979     func="$3"
 980     shift 3
 981     check_lib $header $func "$@" || die "ERROR: $name not found"
 982 }
 983
 984 require2(){
 985     name="$1"
 986     headers="$2"
 987     func="$3"
 988     shift 3
 989     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 990 }
 991
 992 require_cpp(){
 993     name="$1"
 994     headers="$2"
 995     classes="$3"
 996     shift 3
 997     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
 998 }
 999
1000 require_pkg_config(){
1001     pkg="$1"
1002     check_pkg_config "$@" || die "ERROR: $pkg not found"
1003     add_cflags    $(get_safe ${pkg}_cflags)
1004     add_extralibs $(get_safe ${pkg}_libs)
1005 }
1006
1007 check_host_cc(){
1008     log check_host_cc "$@"
1009     cat > $TMPC
1010     log_file $TMPC
1011     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
1012 }
1013
1014 check_host_cflags(){
1015     log check_host_cflags "$@"
1016     set -- $($host_cflags_filter "$@")
1017     check_host_cc "$@" <<EOF && append host_cflags "$@"
1018 int x;
1019 EOF
1020 }
1021
1022 apply(){
1023     file=$1
1024     shift
1025     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1026 }
1027
1028 cp_if_changed(){
1029     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1030     mkdir -p "$(dirname $2)"
1031     cp -f "$1" "$2"
1032 }
1033
1034 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1035 # system-dependent things.
1036
1037 COMPONENT_LIST="
1038     bsfs
1039     decoders
1040     demuxers
1041     encoders
1042     filters
1043     hwaccels
1044     indevs
1045     muxers
1046     outdevs
1047     parsers
1048     protocols
1049 "
1050
1051 DOCUMENT_LIST="
1052     doc
1053     htmlpages
1054     manpages
1055     podpages
1056     txtpages
1057 "
1058
1059 PROGRAM_LIST="
1060     ffplay
1061     ffprobe
1062     ffserver
1063     ffmpeg
1064 "
1065
1066 CONFIG_LIST="
1067     $COMPONENT_LIST
1068     $DOCUMENT_LIST
1069     $PROGRAM_LIST
1070     avcodec
1071     avdevice
1072     avfilter
1073     avformat
1074     avresample
1075     avisynth
1076     bzlib
1077     crystalhd
1078     dct
1079     dwt
1080     dxva2
1081     fast_unaligned
1082     fft
1083     fontconfig
1084     frei0r
1085     gnutls
1086     gpl
1087     gray
1088     hardcoded_tables
1089     libaacplus
1090     libass
1091     libbluray
1092     libcaca
1093     libcdio
1094     libcelt
1095     libdc1394
1096     libfaac
1097     libfdk_aac
1098     libflite
1099     libfreetype
1100     libgsm
1101     libiec61883
1102     libilbc
1103     libmodplug
1104     libmp3lame
1105     libnut
1106     libopencore_amrnb
1107     libopencore_amrwb
1108     libopencv
1109     libopenjpeg
1110     libopus
1111     libpulse
1112     librtmp
1113     libschroedinger
1114     libspeex
1115     libstagefright_h264
1116     libtheora
1117     libtwolame
1118     libutvideo
1119     libv4l2
1120     libvo_aacenc
1121     libvo_amrwbenc
1122     libvorbis
1123     libvpx
1124     libx264
1125     libxavs
1126     libxvid
1127     lsp
1128     mdct
1129     memalign_hack
1130     memory_poisoning
1131     network
1132     nonfree
1133     openal
1134     openssl
1135     pic
1136     postproc
1137     rdft
1138     runtime_cpudetect
1139     safe_bitstream_reader
1140     shared
1141     small
1142     sram
1143     static
1144     swresample
1145     swscale
1146     swscale_alpha
1147     thumb
1148     vaapi
1149     vda
1150     vdpau
1151     version3
1152     xmm_clobber_test
1153     x11grab
1154     zlib
1155 "
1156
1157 THREADS_LIST='
1158     pthreads
1159     w32threads
1160     os2threads
1161 '
1162
1163 ARCH_LIST='
1164     alpha
1165     arm
1166     avr32
1167     avr32_ap
1168     avr32_uc
1169     bfin
1170     ia64
1171     m68k
1172     mips
1173     mips64
1174     parisc
1175     ppc
1176     ppc64
1177     s390
1178     sh4
1179     sparc
1180     sparc64
1181     tomi
1182     x86
1183     x86_32
1184     x86_64
1185 '
1186
1187 ARCH_EXT_LIST='
1188     altivec
1189     amd3dnow
1190     amd3dnowext
1191     armv5te
1192     armv6
1193     armv6t2
1194     armvfp
1195     avx
1196     fma4
1197     mmi
1198     mmx
1199     mmxext
1200     neon
1201     ppc4xx
1202     sse
1203     ssse3
1204     vfpv3
1205     vis
1206     mipsfpu
1207     mips32r2
1208     mipsdspr1
1209     mipsdspr2
1210 '
1211
1212 HAVE_LIST_PUB='
1213     bigendian
1214     fast_unaligned
1215 '
1216
1217 HAVE_LIST="
1218     $ARCH_EXT_LIST
1219     $HAVE_LIST_PUB
1220     $THREADS_LIST
1221     aligned_malloc
1222     aligned_stack
1223     alsa_asoundlib_h
1224     altivec_h
1225     arpa_inet_h
1226     asm_mod_q
1227     asm_mod_y
1228     asm_types_h
1229     attribute_may_alias
1230     attribute_packed
1231     cbrtf
1232     clock_gettime
1233     closesocket
1234     cmov
1235     cpuid
1236     cpunop
1237     dcbzl
1238     dev_bktr_ioctl_bt848_h
1239     dev_bktr_ioctl_meteor_h
1240     dev_ic_bt8xx_h
1241     dev_video_bktr_ioctl_bt848_h
1242     dev_video_meteor_ioctl_meteor_h
1243     dlfcn_h
1244     dlopen
1245     dos_paths
1246     dxva_h
1247     ebp_available
1248     ebx_available
1249     exp2
1250     exp2f
1251     fast_64bit
1252     fast_clz
1253     fast_cmov
1254     fcntl
1255     fork
1256     getaddrinfo
1257     gethrtime
1258     getopt
1259     GetProcessAffinityMask
1260     GetProcessMemoryInfo
1261     GetProcessTimes
1262     GetSystemTimeAsFileTime
1263     getrusage
1264     gettimeofday
1265     glob
1266     gnu_as
1267     ibm_asm
1268     inet_aton
1269     inline_asm
1270     isatty
1271     isinf
1272     isnan
1273     jack_port_get_latency_range
1274     kbhit
1275     ldbrx
1276     libdc1394_1
1277     libdc1394_2
1278     llrint
1279     llrintf
1280     local_aligned_16
1281     local_aligned_8
1282     localtime_r
1283     log2
1284     log2f
1285     loongson
1286     lrint
1287     lrintf
1288     lzo1x_999_compress
1289     machine_ioctl_bt848_h
1290     machine_ioctl_meteor_h
1291     makeinfo
1292     malloc_h
1293     MapViewOfFile
1294     memalign
1295     mkstemp
1296     mm_empty
1297     mmap
1298     nanosleep
1299     PeekNamedPipe
1300     perl
1301     pod2man
1302     poll_h
1303     posix_memalign
1304     pthread_cancel
1305     rdtsc
1306     rint
1307     round
1308     roundf
1309     rweflags
1310     sched_getaffinity
1311     sdl
1312     sdl_video_size
1313     setmode
1314     setrlimit
1315     Sleep
1316     sndio_h
1317     socklen_t
1318     soundcard_h
1319     strerror_r
1320     strptime
1321     struct_addrinfo
1322     struct_group_source_req
1323     struct_ip_mreq_source
1324     struct_ipv6_mreq
1325     struct_pollfd
1326     struct_rusage_ru_maxrss
1327     struct_sctp_event_subscribe
1328     struct_sockaddr_in6
1329     struct_sockaddr_sa_len
1330     struct_sockaddr_storage
1331     struct_v4l2_frmivalenum_discrete
1332     symver
1333     symver_asm_label
1334     symver_gnu_asm
1335     sysconf
1336     sysctl
1337     sys_mman_h
1338     sys_param_h
1339     sys_resource_h
1340     sys_select_h
1341     sys_soundcard_h
1342     sys_time_h
1343     sys_videoio_h
1344     termios_h
1345     texi2html
1346     threads
1347     trunc
1348     truncf
1349     unistd_h
1350     usleep
1351     vfp_args
1352     VirtualAlloc
1353     windows_h
1354     winsock2_h
1355     xform_asm
1356     xgetbv
1357     xmm_clobbers
1358     yasm
1359 "
1360
1361 # options emitted with CONFIG_ prefix but not available on command line
1362 CONFIG_EXTRA="
1363     aandcttables
1364     ac3dsp
1365     avutil
1366     error_resilience
1367     gcrypt
1368     golomb
1369     gplv3
1370     h264chroma
1371     h264dsp
1372     h264pred
1373     h264qpel
1374     huffman
1375     lgplv3
1376     lpc
1377     mpegaudiodsp
1378     mpegvideo
1379     mpegvideoenc
1380     nettle
1381     rangecoder
1382     rtpdec
1383     sinewin
1384     vp3dsp
1385 "
1386
1387 CMDLINE_SELECT="
1388     $ARCH_EXT_LIST
1389     $CONFIG_LIST
1390     $THREADS_LIST
1391     asm
1392     coverage
1393     cross_compile
1394     debug
1395     extra_warnings
1396     logging
1397     optimizations
1398     stripping
1399     symver
1400     yasm
1401 "
1402
1403 PATHS_LIST='
1404     bindir
1405     datadir
1406     incdir
1407     libdir
1408     mandir
1409     prefix
1410     shlibdir
1411 '
1412
1413 CMDLINE_SET="
1414     $PATHS_LIST
1415     ar
1416     arch
1417     as
1418     assert_level
1419     build_suffix
1420     cc
1421     cpu
1422     cross_prefix
1423     cxx
1424     dep_cc
1425     extra_version
1426     host_cc
1427     host_cflags
1428     host_ldflags
1429     host_libs
1430     host_os
1431     install
1432     ld
1433     logfile
1434     malloc_prefix
1435     nm
1436     optflags
1437     pkg_config
1438     postproc_version
1439     progs_suffix
1440     random_seed
1441     samples
1442     strip
1443     sysinclude
1444     sysroot
1445     target_exec
1446     target_os
1447     target_path
1448     valgrind
1449     yasmexe
1450 "
1451
1452 CMDLINE_APPEND="
1453     extra_cflags
1454     extra_cxxflags
1455 "
1456
1457 # code dependency declarations
1458
1459 # architecture extensions
1460
1461 armv5te_deps="arm"
1462 armv6_deps="arm"
1463 armv6t2_deps="arm"
1464 armvfp_deps="arm"
1465 neon_deps="arm"
1466 vfpv3_deps="armvfp"
1467
1468 mipsfpu_deps="mips"
1469 mips32r2_deps="mips"
1470 mipsdspr1_deps="mips"
1471 mipsdspr2_deps="mips"
1472 mmi_deps="mips"
1473
1474 altivec_deps="ppc"
1475 ppc4xx_deps="ppc"
1476
1477 vis_deps="sparc"
1478
1479 x86_64_suggest="cmov fast_cmov"
1480 amd3dnow_deps="mmx"
1481 amd3dnowext_deps="amd3dnow"
1482 mmx_deps="x86"
1483 mmxext_deps="mmx"
1484 sse_deps="mmx"
1485 ssse3_deps="sse"
1486 avx_deps="ssse3"
1487 fma4_deps="avx"
1488
1489 aligned_stack_if_any="ppc x86"
1490 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1491 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1492 fast_unaligned_if_any="armv6 ppc x86"
1493
1494 inline_asm_deps="!tms470"
1495 need_memalign="altivec neon sse"
1496
1497 symver_if_any="symver_asm_label symver_gnu_asm"
1498
1499 # subsystems
1500 dct_select="rdft"
1501 mdct_select="fft"
1502 rdft_select="fft"
1503 mpegaudiodsp_select="dct"
1504 mpegvideoenc_select="mpegvideo"
1505
1506 # decoders / encoders / hardware accelerators
1507 aac_decoder_select="mdct sinewin"
1508 aac_encoder_select="mdct sinewin"
1509 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1510 ac3_decoder_select="mdct ac3dsp ac3_parser"
1511 ac3_encoder_select="mdct ac3dsp"
1512 ac3_fixed_encoder_select="mdct ac3dsp"
1513 alac_encoder_select="lpc"
1514 amrnb_decoder_select="lsp"
1515 amrwb_decoder_select="lsp"
1516 amv_encoder_select="aandcttables"
1517 atrac1_decoder_select="mdct sinewin"
1518 atrac3_decoder_select="mdct"
1519 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1520 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1521 cavs_decoder_select="golomb mpegvideo"
1522 cook_decoder_select="mdct sinewin"
1523 cscd_decoder_suggest="zlib"
1524 dca_decoder_select="mdct"
1525 dirac_decoder_select="dwt golomb"
1526 dnxhd_encoder_select="aandcttables mpegvideoenc"
1527 dxa_decoder_select="zlib"
1528 eac3_decoder_select="ac3_decoder"
1529 eac3_encoder_select="ac3_encoder"
1530 eamad_decoder_select="aandcttables error_resilience"
1531 eatgq_decoder_select="aandcttables"
1532 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1533 exr_decoder_select="zlib"
1534 ffv1_decoder_select="golomb rangecoder"
1535 ffv1_encoder_select="rangecoder"
1536 flac_decoder_select="golomb"
1537 flac_encoder_select="golomb lpc"
1538 flashsv_decoder_select="zlib"
1539 flashsv_encoder_select="zlib"
1540 flashsv2_encoder_select="zlib"
1541 flashsv2_decoder_select="zlib"
1542 flv_decoder_select="h263_decoder"
1543 flv_encoder_select="h263_encoder"
1544 fraps_decoder_select="huffman"
1545 h261_decoder_select="error_resilience mpegvideo"
1546 h261_encoder_select="aandcttables mpegvideoenc"
1547 h263_decoder_select="error_resilience h263_parser mpegvideo"
1548 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1549 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1550 h263i_decoder_select="h263_decoder"
1551 h263p_encoder_select="h263_encoder"
1552 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1553 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1554 h264_dxva2_hwaccel_deps="dxva2api_h"
1555 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1556 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1557 h264_vda_decoder_select="vda h264_parser h264_decoder"
1558 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1559 h264_vda_hwaccel_select="vda h264_decoder"
1560 h264_vdpau_decoder_select="vdpau h264_decoder"
1561 huffyuv_encoder_select="huffman"
1562 iac_decoder_select="fft mdct sinewin"
1563 imc_decoder_select="fft mdct sinewin"
1564 jpegls_decoder_select="golomb"
1565 jpegls_encoder_select="golomb"
1566 ljpeg_encoder_select="aandcttables mpegvideoenc"
1567 loco_decoder_select="golomb"
1568 mdec_decoder_select="error_resilience mpegvideo"
1569 mjpeg_encoder_select="aandcttables mpegvideoenc"
1570 mlp_decoder_select="mlp_parser"
1571 mp1_decoder_select="mpegaudiodsp"
1572 mp1float_decoder_select="mpegaudiodsp"
1573 mp2_decoder_select="mpegaudiodsp"
1574 mp2float_decoder_select="mpegaudiodsp"
1575 mp3_decoder_select="mpegaudiodsp"
1576 mp3adu_decoder_select="mpegaudiodsp"
1577 mp3adufloat_decoder_select="mpegaudiodsp"
1578 mp3float_decoder_select="mpegaudiodsp"
1579 mp3on4_decoder_select="mpegaudiodsp"
1580 mp3on4float_decoder_select="mpegaudiodsp"
1581 mpc7_decoder_select="mpegaudiodsp"
1582 mpc8_decoder_select="mpegaudiodsp"
1583 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1584 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1585 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1586 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1587 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1588 mpeg1video_decoder_select="error_resilience mpegvideo"
1589 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1590 mpeg2_crystalhd_decoder_select="crystalhd"
1591 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1592 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1593 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1594 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1595 mpeg2video_decoder_select="error_resilience mpegvideo"
1596 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1597 mpeg4_crystalhd_decoder_select="crystalhd"
1598 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1599 mpeg4_encoder_select="h263_encoder"
1600 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1601 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1602 msmpeg4_crystalhd_decoder_select="crystalhd"
1603 msmpeg4v1_decoder_select="h263_decoder"
1604 msmpeg4v1_encoder_select="h263_encoder"
1605 msmpeg4v2_decoder_select="h263_decoder"
1606 msmpeg4v2_encoder_select="h263_encoder"
1607 msmpeg4v3_decoder_select="h263_decoder"
1608 msmpeg4v3_encoder_select="h263_encoder"
1609 nellymoser_decoder_select="mdct sinewin"
1610 nellymoser_encoder_select="mdct sinewin"
1611 png_decoder_select="zlib"
1612 png_encoder_select="zlib"
1613 qcelp_decoder_select="lsp"
1614 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1615 ra_144_encoder_select="lpc"
1616 ralf_decoder_select="golomb"
1617 rv10_decoder_select="h263_decoder"
1618 rv10_encoder_select="h263_encoder"
1619 rv20_decoder_select="h263_decoder"
1620 rv20_encoder_select="h263_encoder"
1621 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1622 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1623 shorten_decoder_select="golomb"
1624 sipr_decoder_select="lsp"
1625 snow_decoder_select="dwt rangecoder"
1626 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1627 sonic_decoder_select="golomb"
1628 sonic_encoder_select="golomb"
1629 sonic_ls_encoder_select="golomb"
1630 svq1_decoder_select="error_resilience mpegvideo"
1631 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1632 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1633 svq3_decoder_suggest="zlib"
1634 theora_decoder_select="vp3_decoder"
1635 tiff_decoder_suggest="zlib"
1636 tiff_encoder_suggest="zlib"
1637 tscc_decoder_select="zlib"
1638 twinvq_decoder_select="mdct lsp sinewin"
1639 vc1_crystalhd_decoder_select="crystalhd"
1640 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1641 vc1_dxva2_hwaccel_deps="dxva2api_h"
1642 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1643 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1644 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1645 vc1image_decoder_select="vc1_decoder"
1646 vorbis_decoder_select="mdct"
1647 vorbis_encoder_select="mdct"
1648 vp3_decoder_select="vp3dsp"
1649 vp5_decoder_select="vp3dsp"
1650 vp6_decoder_select="huffman vp3dsp"
1651 vp6a_decoder_select="vp6_decoder"
1652 vp6f_decoder_select="vp6_decoder"
1653 vp8_decoder_select="h264pred h264qpel"
1654 wmapro_decoder_select="mdct sinewin"
1655 wmav1_decoder_select="mdct sinewin"
1656 wmav1_encoder_select="mdct sinewin"
1657 wmav2_decoder_select="mdct sinewin"
1658 wmav2_encoder_select="mdct sinewin"
1659 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1660 wmv1_decoder_select="h263_decoder"
1661 wmv1_encoder_select="h263_encoder"
1662 wmv2_decoder_select="h263_decoder"
1663 wmv2_encoder_select="h263_encoder"
1664 wmv3_decoder_select="vc1_decoder"
1665 wmv3_crystalhd_decoder_select="crystalhd"
1666 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1667 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1668 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1669 wmv3image_decoder_select="wmv3_decoder"
1670 zerocodec_decoder_select="zlib"
1671 zlib_decoder_select="zlib"
1672 zlib_encoder_select="zlib"
1673 zmbv_decoder_select="zlib"
1674 zmbv_encoder_select="zlib"
1675
1676 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1677 vaapi_deps="va_va_h"
1678 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1679 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1680
1681 # parsers
1682 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1683 mpeg4video_parser_select="error_resilience mpegvideo"
1684 mpegvideo_parser_select="error_resilience mpegvideo"
1685 vc1_parser_select="error_resilience mpegvideo"
1686
1687 # external libraries
1688 libaacplus_encoder_deps="libaacplus"
1689 libcelt_decoder_deps="libcelt"
1690 libfaac_encoder_deps="libfaac"
1691 libfdk_aac_encoder_deps="libfdk_aac"
1692 libgsm_decoder_deps="libgsm"
1693 libgsm_encoder_deps="libgsm"
1694 libgsm_ms_decoder_deps="libgsm"
1695 libgsm_ms_encoder_deps="libgsm"
1696 libilbc_decoder_deps="libilbc"
1697 libilbc_encoder_deps="libilbc"
1698 libmodplug_demuxer_deps="libmodplug"
1699 libmp3lame_encoder_deps="libmp3lame"
1700 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1701 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1702 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1703 libopenjpeg_decoder_deps="libopenjpeg"
1704 libopenjpeg_encoder_deps="libopenjpeg"
1705 libopus_decoder_deps="libopus"
1706 libschroedinger_decoder_deps="libschroedinger"
1707 libschroedinger_encoder_deps="libschroedinger"
1708 libspeex_decoder_deps="libspeex"
1709 libspeex_encoder_deps="libspeex"
1710 libstagefright_h264_decoder_deps="libstagefright_h264"
1711 libtheora_encoder_deps="libtheora"
1712 libtwolame_encoder_deps="libtwolame"
1713 libvo_aacenc_encoder_deps="libvo_aacenc"
1714 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1715 libvorbis_decoder_deps="libvorbis"
1716 libvorbis_encoder_deps="libvorbis"
1717 libvpx_decoder_deps="libvpx"
1718 libvpx_encoder_deps="libvpx"
1719 libx264_encoder_deps="libx264"
1720 libx264rgb_encoder_deps="libx264"
1721 libxavs_encoder_deps="libxavs"
1722 libxvid_encoder_deps="libxvid"
1723 libutvideo_decoder_deps="libutvideo"
1724 libutvideo_encoder_deps="libutvideo"
1725
1726 # demuxers / muxers
1727 ac3_demuxer_select="ac3_parser"
1728 asf_stream_muxer_select="asf_muxer"
1729 avisynth_demuxer_deps="avisynth"
1730 dirac_demuxer_select="dirac_parser"
1731 eac3_demuxer_select="ac3_parser"
1732 flac_demuxer_select="flac_parser"
1733 ipod_muxer_select="mov_muxer"
1734 libnut_demuxer_deps="libnut"
1735 libnut_muxer_deps="libnut"
1736 matroska_audio_muxer_select="matroska_muxer"
1737 matroska_demuxer_suggest="zlib bzlib"
1738 mov_demuxer_suggest="zlib"
1739 mp3_demuxer_select="mpegaudio_parser"
1740 mp4_muxer_select="mov_muxer"
1741 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1742 mpegtsraw_demuxer_select="mpegts_demuxer"
1743 mxf_d10_muxer_select="mxf_muxer"
1744 ogg_demuxer_select="golomb"
1745 psp_muxer_select="mov_muxer"
1746 rtp_demuxer_select="sdp_demuxer"
1747 rtp_muxer_select="mpegvideo"
1748 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1749 rtsp_demuxer_select="http_protocol rtpdec"
1750 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1751 sap_demuxer_select="sdp_demuxer"
1752 sap_muxer_select="rtp_muxer rtp_protocol"
1753 sdp_demuxer_select="rtpdec"
1754 spdif_muxer_select="aac_parser"
1755 tg2_muxer_select="mov_muxer"
1756 tgp_muxer_select="mov_muxer"
1757 w64_demuxer_deps="wav_demuxer"
1758
1759 # indevs / outdevs
1760 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1761 alsa_outdev_deps="alsa_asoundlib_h"
1762 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1763 caca_outdev_deps="libcaca"
1764 dshow_indev_deps="IBaseFilter"
1765 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1766 dv1394_indev_deps="dv1394 dv_demuxer"
1767 fbdev_indev_deps="linux_fb_h"
1768 iec61883_indev_deps="libiec61883"
1769 jack_indev_deps="jack_jack_h sem_timedwait"
1770 lavfi_indev_deps="avfilter"
1771 libcdio_indev_deps="libcdio"
1772 libdc1394_indev_deps="libdc1394"
1773 libv4l2_indev_deps="libv4l2"
1774 openal_indev_deps="openal"
1775 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1776 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1777 pulse_indev_deps="libpulse"
1778 sdl_outdev_deps="sdl"
1779 sndio_indev_deps="sndio_h"
1780 sndio_outdev_deps="sndio_h"
1781 v4l_indev_deps="linux_videodev_h"
1782 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1783 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1784 vfwcap_indev_extralibs="-lavicap32"
1785 x11grab_indev_deps="x11grab"
1786
1787 # protocols
1788 bluray_protocol_deps="libbluray"
1789 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1790 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1791 ffrtmpcrypt_protocol_select="tcp_protocol"
1792 ffrtmphttp_protocol_deps="!librtmp_protocol"
1793 ffrtmphttp_protocol_select="http_protocol"
1794 gopher_protocol_deps="network"
1795 httpproxy_protocol_deps="network"
1796 httpproxy_protocol_select="tcp_protocol"
1797 http_protocol_deps="network"
1798 http_protocol_select="tcp_protocol"
1799 https_protocol_select="tls_protocol"
1800 librtmp_protocol_deps="librtmp"
1801 librtmpe_protocol_deps="librtmp"
1802 librtmps_protocol_deps="librtmp"
1803 librtmpt_protocol_deps="librtmp"
1804 librtmpte_protocol_deps="librtmp"
1805 mmsh_protocol_select="http_protocol"
1806 mmst_protocol_deps="network"
1807 rtmp_protocol_deps="!librtmp_protocol"
1808 rtmp_protocol_select="tcp_protocol"
1809 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1810 rtmps_protocol_deps="!librtmp_protocol"
1811 rtmps_protocol_select="tls_protocol"
1812 rtmpt_protocol_select="ffrtmphttp_protocol"
1813 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1814 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1815 rtp_protocol_select="udp_protocol"
1816 sctp_protocol_deps="network struct_sctp_event_subscribe"
1817 tcp_protocol_deps="network"
1818 tls_protocol_deps_any="openssl gnutls"
1819 tls_protocol_select="tcp_protocol"
1820 udp_protocol_deps="network"
1821
1822 # filters
1823 aconvert_filter_deps="swresample"
1824 amovie_filter_deps="avcodec avformat"
1825 aresample_filter_deps="swresample"
1826 ass_filter_deps="libass"
1827 asyncts_filter_deps="avresample"
1828 atempo_filter_deps="avcodec rdft"
1829 blackframe_filter_deps="gpl"
1830 boxblur_filter_deps="gpl"
1831 colormatrix_filter_deps="gpl"
1832 cropdetect_filter_deps="gpl"
1833 delogo_filter_deps="gpl"
1834 deshake_filter_deps="avcodec"
1835 drawtext_filter_deps="libfreetype"
1836 flite_filter_deps="libflite"
1837 frei0r_filter_deps="frei0r dlopen"
1838 frei0r_filter_extralibs='$ldl'
1839 frei0r_src_filter_deps="frei0r dlopen"
1840 frei0r_src_filter_extralibs='$ldl'
1841 hqdn3d_filter_deps="gpl"
1842 movie_filter_deps="avcodec avformat"
1843 mp_filter_deps="gpl avcodec swscale postproc"
1844 mptestsrc_filter_deps="gpl"
1845 negate_filter_deps="lut_filter"
1846 resample_filter_deps="avresample"
1847 ocv_filter_deps="libopencv"
1848 pan_filter_deps="swresample"
1849 removelogo_filter_deps="avcodec avformat swscale"
1850 scale_filter_deps="swscale"
1851 select_filter_deps="avcodec"
1852 showspectrum_filter_deps="avcodec"
1853 super2xsai_filter_deps="gpl"
1854 tinterlace_filter_deps="gpl"
1855 yadif_filter_deps="gpl"
1856
1857 # libraries
1858 avdevice_deps="avcodec avformat"
1859 avformat_deps="avcodec"
1860 postproc_deps="gpl"
1861
1862 # programs
1863 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1864 ffmpeg_select="buffersink_filter format_filter aformat_filter
1865                setpts_filter null_filter anull_filter abuffersink_filter"
1866 ffplay_deps="avcodec avformat swscale swresample sdl"
1867 ffplay_select="buffersink_filter rdft"
1868 ffprobe_deps="avcodec avformat"
1869 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1870 ffserver_extralibs='$ldl'
1871
1872 # documentation
1873 podpages_deps="perl"
1874 manpages_deps="perl pod2man"
1875 htmlpages_deps="texi2html"
1876 txtpages_deps="makeinfo"
1877 doc_deps_any="manpages htmlpages podpages txtpages"
1878
1879 # tests
1880 colormatrix1_test_deps="colormatrix_filter"
1881 colormatrix2_test_deps="colormatrix_filter"
1882 flashsv2_test_deps="zlib"
1883 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1884 mpng_test_deps="zlib"
1885 pp_test_deps="mp_filter"
1886 pp2_test_deps="mp_filter"
1887 pp3_test_deps="mp_filter"
1888 pp4_test_deps="mp_filter"
1889 pp5_test_deps="mp_filter"
1890 pp6_test_deps="mp_filter"
1891 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1892 zlib_test_deps="zlib"
1893 zmbv_test_deps="zlib"
1894
1895 test_deps(){
1896     suf1=$1
1897     suf2=$2
1898     shift 2
1899     for v; do
1900         dep=${v%=*}
1901         tests=${v#*=}
1902         for name in ${tests}; do
1903             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1904         done
1905     done
1906 }
1907
1908 test_deps _muxer _demuxer                                               \
1909     aiff                                                                \
1910     pcm_alaw=alaw                                                       \
1911     asf                                                                 \
1912     au                                                                  \
1913     avi                                                                 \
1914     dv=dv_fmt                                                           \
1915     ffm                                                                 \
1916     flv=flv_fmt                                                         \
1917     gxf                                                                 \
1918     matroska=mkv                                                        \
1919     mmf                                                                 \
1920     mov="mov ismv"                                                      \
1921     pcm_mulaw=mulaw                                                     \
1922     mxf="mxf mxf_d10"                                                   \
1923     nut                                                                 \
1924     ogg="ogg ogg_vp3"                                                   \
1925     rawvideo=pixfmt                                                     \
1926     rm                                                                  \
1927     swf                                                                 \
1928     mpegts=ts                                                           \
1929     voc                                                                 \
1930     wav                                                                 \
1931     yuv4mpegpipe=yuv4mpeg                                               \
1932
1933 # default parameters
1934
1935 logfile="config.log"
1936
1937 # installation paths
1938 prefix_default="/usr/local"
1939 bindir_default='${prefix}/bin'
1940 datadir_default='${prefix}/share/ffmpeg'
1941 incdir_default='${prefix}/include'
1942 libdir_default='${prefix}/lib'
1943 mandir_default='${prefix}/share/man'
1944 shlibdir_default="$libdir_default"
1945 postproc_version_default="current"
1946
1947 # toolchain
1948 ar_default="ar"
1949 cc_default="gcc"
1950 cxx_default="g++"
1951 host_cc_default="gcc"
1952 install="install"
1953 ln_s="ln -sf"
1954 nm_default="nm"
1955 objformat="elf"
1956 pkg_config_default=pkg-config
1957 ranlib="ranlib"
1958 strip_default="strip"
1959 yasmexe_default="yasm"
1960
1961 nm_opts='-g'
1962 nogas=":"
1963
1964 # machine
1965 arch_default=$(uname -m)
1966 cpu="generic"
1967
1968 # OS
1969 target_os_default=$(tolower $(uname -s))
1970 host_os=$target_os_default
1971
1972 # alternative libpostproc version
1973 ALT_PP_VER_MAJOR=51
1974 ALT_PP_VER_MINOR=2
1975 ALT_PP_VER_MICRO=101
1976 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1977
1978 # configurable options
1979 enable $PROGRAM_LIST
1980 enable $DOCUMENT_LIST
1981
1982 enable avcodec
1983 enable avdevice
1984 enable avfilter
1985 enable avformat
1986 enable avutil
1987 enable postproc
1988 enable stripping
1989 enable swresample
1990 enable swscale
1991
1992 enable asm
1993 enable debug
1994 enable doc
1995 enable network
1996 enable optimizations
1997 enable safe_bitstream_reader
1998 enable static
1999 enable swscale_alpha
2000
2001 # build settings
2002 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2003 FFSERVERLDFLAGS=-Wl,-E
2004 LIBPREF="lib"
2005 LIBSUF=".a"
2006 FULLNAME='$(NAME)$(BUILDSUF)'
2007 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2008 SLIBPREF="lib"
2009 SLIBSUF=".so"
2010 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2011 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2012 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2013 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2014 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2015 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2016
2017 asflags_filter=echo
2018 cflags_filter=echo
2019 ldflags_filter=echo
2020
2021 AS_C='-c'
2022 AS_O='-o $@'
2023 CC_C='-c'
2024 CC_E='-E -o $@'
2025 CC_O='-o $@'
2026 CXX_C='-c'
2027 CXX_O='-o $@'
2028 LD_O='-o $@'
2029 HOSTCC_C='-c'
2030 HOSTCC_O='-o $@'
2031
2032 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2033 host_libs='-lm'
2034 host_cflags_filter=echo
2035 host_ldflags_filter=echo
2036
2037 target_path='$(CURDIR)'
2038
2039 # since the object filename is not given with the -MM flag, the compiler
2040 # is only able to print the basename, and we must add the path ourselves
2041 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2042 DEPFLAGS='-MM'
2043
2044 # find source path
2045 if test -f configure; then
2046     source_path=.
2047 else
2048     source_path=$(cd $(dirname "$0"); pwd)
2049     echo "$source_path" | grep -q '[[:blank:]]' &&
2050         die "Out of tree builds are impossible with whitespace in source path."
2051     test -e "$source_path/config.h" &&
2052         die "Out of tree builds are impossible with config.h in source dir."
2053 fi
2054
2055 for v in "$@"; do
2056     r=${v#*=}
2057     l=${v%"$r"}
2058     r=$(sh_quote "$r")
2059     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2060 done
2061
2062 find_things(){
2063     thing=$1
2064     pattern=$2
2065     file=$source_path/$3
2066     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2067 }
2068
2069 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2070 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2071 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2072 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2073 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2074 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2075 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2076 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2077 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2078 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2079 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2080
2081 ALL_COMPONENTS="
2082     $BSF_LIST
2083     $DECODER_LIST
2084     $DEMUXER_LIST
2085     $ENCODER_LIST
2086     $FILTER_LIST
2087     $HWACCEL_LIST
2088     $INDEV_LIST
2089     $MUXER_LIST
2090     $OUTDEV_LIST
2091     $PARSER_LIST
2092     $PROTOCOL_LIST
2093 "
2094
2095 find_tests(){
2096     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2097 }
2098
2099 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2100 LAVF_TESTS=$(find_tests lavf)
2101 LAVFI_TESTS=$(find_tests lavfi)
2102 SEEK_TESTS=$(find_tests seek seek_)
2103
2104 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2105
2106 for n in $COMPONENT_LIST; do
2107     v=$(toupper ${n%s})_LIST
2108     eval enable \$$v
2109     eval ${n}_if_any="\$$v"
2110 done
2111
2112 enable $ARCH_EXT_LIST $ALL_TESTS
2113
2114 die_unknown(){
2115     echo "Unknown option \"$1\"."
2116     echo "See $0 --help for available options."
2117     exit 1
2118 }
2119
2120 show_list() {
2121     suffix=_$1
2122     shift
2123     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2124     exit 0
2125 }
2126
2127 rand_list(){
2128     IFS=', '
2129     set -- $*
2130     unset IFS
2131     for thing; do
2132         comp=${thing%:*}
2133         prob=${thing#$comp}
2134         prob=${prob#:}
2135         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2136         echo "prob ${prob:-0.5}"
2137         printf '%s\n' $comp
2138     done
2139 }
2140
2141 do_random(){
2142     action=$1
2143     shift
2144     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2145     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2146 }
2147
2148 for opt do
2149     optval="${opt#*=}"
2150     case "$opt" in
2151     --extra-ldflags=*) add_ldflags $optval
2152     ;;
2153     --extra-libs=*) add_extralibs $optval
2154     ;;
2155     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2156     ;;
2157     --enable-debug=*) debuglevel="$optval"
2158     ;;
2159     --disable-everything)
2160     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2161     ;;
2162     --enable-random|--disable-random)
2163     action=${opt%%-random}
2164     do_random ${action#--} $COMPONENT_LIST
2165     ;;
2166     --enable-random=*|--disable-random=*)
2167     action=${opt%%-random=*}
2168     do_random ${action#--} $optval
2169     ;;
2170     --enable-*=*|--disable-*=*)
2171     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2172     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2173     eval list=\$$(toupper $thing)_LIST
2174     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2175     $action $(filter "$name" $list)
2176     ;;
2177     --enable-?*|--disable-?*)
2178     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2179     if is_in $option $COMPONENT_LIST; then
2180         test $action = disable && action=unset
2181         eval $action \$$(toupper ${option%s})_LIST
2182     elif is_in $option $CMDLINE_SELECT; then
2183         $action $option
2184     else
2185         die_unknown $opt
2186     fi
2187     ;;
2188     --list-*)
2189         NAME="${opt#--list-}"
2190         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2191         NAME=${NAME%s}
2192         eval show_list $NAME \$$(toupper $NAME)_LIST
2193     ;;
2194     --help|-h) show_help
2195     ;;
2196     *)
2197     optname="${opt%%=*}"
2198     optname="${optname#--}"
2199     optname=$(echo "$optname" | sed 's/-/_/g')
2200     if is_in $optname $CMDLINE_SET; then
2201         eval $optname='$optval'
2202     elif is_in $optname $CMDLINE_APPEND; then
2203         append $optname "$optval"
2204     else
2205          die_unknown $opt
2206     fi
2207     ;;
2208     esac
2209 done
2210
2211 disabled logging && logfile=/dev/null
2212
2213 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2214 set >> $logfile
2215
2216 test -n "$cross_prefix" && enable cross_compile
2217
2218 if enabled cross_compile; then
2219     test -n "$arch" && test -n "$target_os" ||
2220         die "Must specify target arch and OS when cross-compiling"
2221 fi
2222
2223 set_default arch target_os postproc_version
2224
2225 # Check if we should build alternative libpostproc version instead of current
2226 if   test "$postproc_version" = $ALT_PP_VER; then
2227   LIBPOSTPROC_VERSION=$ALT_PP_VER
2228   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2229   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2230   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2231 elif test "$postproc_version" != current; then
2232   die "Invalid argument to --postproc-version. See --help output."
2233 fi
2234
2235 ar_default="${cross_prefix}${ar_default}"
2236 cc_default="${cross_prefix}${cc_default}"
2237 cxx_default="${cross_prefix}${cxx_default}"
2238 nm_default="${cross_prefix}${nm_default}"
2239 pkg_config_default="${cross_prefix}${pkg_config_default}"
2240 ranlib="${cross_prefix}${ranlib}"
2241 strip_default="${cross_prefix}${strip_default}"
2242
2243 sysinclude_default="${sysroot}/usr/include"
2244
2245 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2246 enabled cross_compile || host_cc_default=$cc
2247 set_default host_cc
2248
2249 if ! $pkg_config --version >/dev/null 2>&1; then
2250     warn "$pkg_config not found, library detection may fail."
2251     pkg_config=false
2252 fi
2253
2254 exesuf() {
2255     case $1 in
2256         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2257     esac
2258 }
2259
2260 EXESUF=$(exesuf $target_os)
2261 HOSTEXESUF=$(exesuf $host_os)
2262
2263 # set temporary file name
2264 : ${TMPDIR:=$TEMPDIR}
2265 : ${TMPDIR:=$TMP}
2266 : ${TMPDIR:=/tmp}
2267
2268 if ! check_cmd mktemp -u XXXXXX; then
2269     # simple replacement for missing mktemp
2270     # NOT SAFE FOR GENERAL USE
2271     mktemp(){
2272         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2273     }
2274 fi
2275
2276 tmpfile(){
2277     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2278         (set -C; exec > $tmp) 2>/dev/null ||
2279         die "Unable to create temporary file in $TMPDIR."
2280     append TMPFILES $tmp
2281     eval $1=$tmp
2282 }
2283
2284 trap 'rm -f -- $TMPFILES' EXIT
2285
2286 tmpfile TMPASM .asm
2287 tmpfile TMPC   .c
2288 tmpfile TMPCPP .cpp
2289 tmpfile TMPE   $EXESUF
2290 tmpfile TMPH   .h
2291 tmpfile TMPO   .o
2292 tmpfile TMPS   .S
2293 tmpfile TMPSH  .sh
2294 tmpfile TMPV   .ver
2295
2296 unset -f mktemp
2297
2298 chmod +x $TMPE
2299
2300 # make sure we can execute files in $TMPDIR
2301 cat > $TMPSH 2>> $logfile <<EOF
2302 #! /bin/sh
2303 EOF
2304 chmod +x $TMPSH >> $logfile 2>&1
2305 if ! $TMPSH >> $logfile 2>&1; then
2306     cat <<EOF
2307 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2308 variable to another directory and make sure that it is not mounted noexec.
2309 EOF
2310     die "Sanity test failed."
2311 fi
2312
2313 pgi_flags(){
2314     for flag; do
2315         case $flag in
2316             -fomit-frame-pointer) echo -Mnoframe ;;
2317             -g)                   echo -gopt ;;
2318             *)                    echo $flag ;;
2319         esac
2320     done
2321 }
2322
2323 suncc_flags(){
2324     for flag; do
2325         case $flag in
2326             -march=*|-mcpu=*)
2327                 case "${flag#*=}" in
2328                     native)                   echo -xtarget=native       ;;
2329                     v9|niagara)               echo -xarch=sparc          ;;
2330                     ultrasparc)               echo -xarch=sparcvis       ;;
2331                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2332                     i586|pentium)             echo -xchip=pentium        ;;
2333                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2334                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2335                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2336                     pentium4*)          echo -xtarget=pentium4           ;;
2337                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2338                     *-sse3)             echo -xarch=sse3                 ;;
2339                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2340                     amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2341                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2342                     k8|opteron|athlon64|athlon-fx)
2343                                               echo -xarch=sse2a          ;;
2344                     athlon*)                  echo -xarch=pentium_proa   ;;
2345                 esac
2346                 ;;
2347             -std=c99)             echo -xc99              ;;
2348             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2349             -fPIC)                echo -KPIC -xcode=pic32 ;;
2350             -W*,*)                echo $flag              ;;
2351             -f*-*|-W*)                                    ;;
2352             *)                    echo $flag              ;;
2353         esac
2354     done
2355 }
2356
2357 tms470_flags(){
2358     for flag; do
2359         case $flag in
2360             -march=*|-mcpu=*)
2361                 case "${flag#*=}" in
2362                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2363                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2364                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2365                     armv6*|arm11*)          echo -mv=6   ;;
2366                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2367                                             echo -mv=5e  ;;
2368                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2369                 esac
2370                 ;;
2371             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2372             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2373             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2374             -msoft-float)   echo --float_support=vfplib       ;;
2375             -O[0-3]|-mf=*)  echo $flag                        ;;
2376             -g)             echo -g -mn                       ;;
2377             -pds=*)         echo $flag                        ;;
2378             -D*|-I*)        echo $flag                        ;;
2379             --gcc|--abi=*)  echo $flag                        ;;
2380             -me)            echo $flag                        ;;
2381         esac
2382     done
2383 }
2384
2385 probe_cc(){
2386     pfx=$1
2387     _cc=$2
2388
2389     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags _ldflags
2390     unset _depflags _DEPCMD _DEPFLAGS
2391     _flags_filter=echo
2392
2393     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2394         _type=llvm_gcc
2395         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2396         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2397         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2398         _cflags_speed='-O3'
2399         _cflags_size='-Os'
2400     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2401         _type=gcc
2402         gcc_version=$($_cc --version | head -n1)
2403         gcc_basever=$($_cc -dumpversion)
2404         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2405         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2406         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2407         if ! $_cc -dumpversion | grep -q '^2\.'; then
2408             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2409         fi
2410         _cflags_speed='-O3'
2411         _cflags_size='-Os'
2412     elif $_cc --version 2>/dev/null | grep -q Intel; then
2413         _type=icc
2414         _ident=$($_cc --version | head -n1)
2415         _depflags='-MMD'
2416         _cflags_speed='-O3'
2417         _cflags_size='-Os'
2418         _cflags_noopt='-O1'
2419     elif $_cc -v 2>&1 | grep -q xlc; then
2420         _type=xlc
2421         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2422         _cflags_speed='-O5'
2423         _cflags_size='-O5 -qcompact'
2424     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2425         _type=ccc
2426         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2427         _DEPFLAGS='-M'
2428         debuglevel=3
2429         _ldflags='-Wl,-z,now' # calls to libots crash without this
2430         _cflags_speed='-fast'
2431         _cflags_size='-O1'
2432     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2433         test -d "$sysroot" || die "No valid sysroot specified."
2434         _type=armcc
2435         _ident=$($_cc --vsn | head -n1)
2436         armcc_conf="$PWD/armcc.conf"
2437         $_cc --arm_linux_configure                 \
2438              --arm_linux_config_file="$armcc_conf" \
2439              --configure_sysroot="$sysroot"        \
2440              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2441              die "Error creating armcc configuration file."
2442         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2443         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2444         as_default="${cross_prefix}gcc"
2445         _depflags='-MMD'
2446         _cflags_speed='-O3'
2447         _cflags_size='-Os'
2448     elif $_cc -version 2>/dev/null | grep -q TMS470; then
2449         _type=tms470
2450         _ident=$($_cc -version | head -n1 | tr -s ' ')
2451         _flags='--gcc --abi=eabi -me'
2452         _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__='
2453         _cc_e='-ppl -fe=$@'
2454         _cc_o='-fe=$@'
2455         as_default="${cross_prefix}gcc"
2456         ld_default="${cross_prefix}gcc"
2457         _depflags='-ppa -ppd=$(@:.o=.d)'
2458         _cflags_speed='-O3 -mf=5'
2459         _cflags_size='-O3 -mf=2'
2460         _flags_filter=tms470_flags
2461     elif $_cc -v 2>&1 | grep -q clang; then
2462         _type=clang
2463         _ident=$($_cc --version | head -n1)
2464         _depflags='-MMD'
2465         _cflags_speed='-O3'
2466         _cflags_size='-Os'
2467     elif $_cc -V 2>&1 | grep -q Sun; then
2468         _type=suncc
2469         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2470         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2471         _DEPFLAGS='-xM1 -xc99'
2472         _ldflags='-std=c99'
2473         _cflags_speed='-O5'
2474         _cflags_size='-O5 -xspace'
2475         _flags_filter=suncc_flags
2476     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2477         _type=pathscale
2478         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2479         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2480         _cflags_speed='-O2'
2481         _cflags_size='-Os'
2482         _flags_filter='filter_out -Wdisabled-optimization'
2483     elif $_cc -v 2>&1 | grep -q Open64; then
2484         _type=open64
2485         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2486         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2487         _cflags_speed='-O2'
2488         _cflags_size='-Os'
2489         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2490     elif $_cc -V 2>&1 | grep -q Portland; then
2491         _type=pgi
2492         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2493         opt_common='-alias=ansi -Mlre -Mpre'
2494         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2495         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2496         _cflags_noopt="-O1"
2497         _flags_filter=pgi_flags
2498     fi
2499
2500     eval ${pfx}_type=\$_type
2501     eval ${pfx}_ident=\$_ident
2502 }
2503
2504 set_ccvars(){
2505     eval ${1}_C=\${_cc_c-\${${1}_C}}
2506     eval ${1}_E=\${_cc_e-\${${1}_E}}
2507     eval ${1}_O=\${_cc_o-\${${1}_O}}
2508
2509     if [ -n "$_depflags" ]; then
2510         eval ${1}_DEPFLAGS=\$_depflags
2511     else
2512         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2513         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2514         eval DEP${1}FLAGS=\$_flags
2515     fi
2516 }
2517
2518 probe_cc cc "$cc"
2519 cflags_filter=$_flags_filter
2520 cflags_speed=$_cflags_speed
2521 cflags_size=$_cflags_size
2522 cflags_noopt=$_cflags_noopt
2523 add_cflags $_flags $_cflags
2524 cc_ldflags=$_ldflags
2525 set_ccvars CC
2526
2527 probe_cc hostcc "$host_cc"
2528 host_cflags_filter=$_flags_filter
2529 host_ldflags_filter=$_flags_filter
2530 add_host_cflags  $_flags $_cflags
2531 add_host_ldflags $_flags $_ldflags
2532 set_ccvars HOSTCC
2533
2534 test -n "$cc_type" && enable $cc_type ||
2535     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2536
2537 : ${as_default:=$cc}
2538 : ${dep_cc_default:=$cc}
2539 : ${ld_default:=$cc}
2540 set_default ar as dep_cc ld
2541
2542 probe_cc as "$as"
2543 asflags_filter=$_flags_filter
2544 add_asflags $_flags $_cflags
2545 set_ccvars AS
2546
2547 probe_cc ld "$ld"
2548 ldflags_filter=$_flags_filter
2549 add_ldflags $_flags $_ldflags
2550 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2551 LD_O=${_cc_o-$LD_O}
2552
2553 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2554     probe_cc depcc "$dep_cc"
2555     CCDEP=${_DEPCMD:-$DEPCMD}
2556     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2557     DEPCCFLAGS=$_flags
2558 fi
2559
2560 add_cflags $extra_cflags
2561 add_cxxflags $extra_cxxflags
2562 add_asflags $extra_cflags
2563
2564 if test -n "$sysroot"; then
2565     case "$cc_type" in
2566         gcc|llvm_gcc|clang)
2567             add_cppflags --sysroot="$sysroot"
2568             add_ldflags --sysroot="$sysroot"
2569         ;;
2570         tms470)
2571             add_cppflags -I"$sysinclude"
2572             add_ldflags  --sysroot="$sysroot"
2573         ;;
2574     esac
2575 fi
2576
2577 if test "$cpu" = host; then
2578     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2579
2580     case "$cc_type" in
2581         gcc|llvm_gcc)
2582             check_native(){
2583                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2584                 sed -n "/cc1.*$1=/{
2585                             s/.*$1=\\([^ ]*\\).*/\\1/
2586                             p
2587                             q
2588                         }" $TMPE
2589             }
2590             cpu=$(check_native -march || check_native -mcpu)
2591         ;;
2592     esac
2593
2594     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2595 fi
2596
2597 # Deal with common $arch aliases
2598 case "$arch" in
2599     arm*|iPad*)
2600         arch="arm"
2601     ;;
2602     mips|mipsel|IP*)
2603         arch="mips"
2604     ;;
2605     mips64*)
2606         arch="mips"
2607         subarch="mips64"
2608     ;;
2609     parisc|hppa)
2610         arch="parisc"
2611     ;;
2612     parisc64|hppa64)
2613         arch="parisc"
2614         subarch="parisc64"
2615     ;;
2616     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2617         arch="ppc"
2618     ;;
2619     s390|s390x)
2620         arch="s390"
2621     ;;
2622     sh4|sh)
2623         arch="sh4"
2624     ;;
2625     sun4u|sparc64)
2626         arch="sparc"
2627         subarch="sparc64"
2628     ;;
2629     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2630         arch="x86"
2631     ;;
2632 esac
2633
2634 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2635 enable $arch
2636
2637 # Add processor-specific flags
2638 if test "$cpu" = generic; then
2639     : do nothing
2640 elif enabled ppc; then
2641
2642     case $(tolower $cpu) in
2643         601|ppc601|powerpc601)
2644             cpuflags="-mcpu=601"
2645             disable altivec
2646         ;;
2647         603*|ppc603*|powerpc603*)
2648             cpuflags="-mcpu=603"
2649             disable altivec
2650         ;;
2651         604*|ppc604*|powerpc604*)
2652             cpuflags="-mcpu=604"
2653             disable altivec
2654         ;;
2655         g3|75*|ppc75*|powerpc75*)
2656             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2657             disable altivec
2658         ;;
2659         g4|745*|ppc745*|powerpc745*)
2660             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2661         ;;
2662         74*|ppc74*|powerpc74*)
2663             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2664         ;;
2665         g5|970|ppc970|powerpc970)
2666             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2667         ;;
2668         power[3-7]*)
2669             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2670         ;;
2671         cell)
2672             cpuflags="-mcpu=cell"
2673             enable ldbrx
2674         ;;
2675         e500mc)
2676             cpuflags="-mcpu=e500mc"
2677             disable altivec
2678         ;;
2679         e500v2)
2680             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2681             disable altivec
2682         ;;
2683         e500)
2684             cpuflags="-mcpu=8540 -mhard-float"
2685             disable altivec
2686         ;;
2687     esac
2688
2689 elif enabled x86; then
2690
2691     case $cpu in
2692         i[345]86|pentium)
2693             cpuflags="-march=$cpu"
2694             disable mmx
2695         ;;
2696         # targets that do NOT support conditional mov (cmov)
2697         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2698             cpuflags="-march=$cpu"
2699             disable cmov
2700         ;;
2701         # targets that do support conditional mov (cmov)
2702         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2703             cpuflags="-march=$cpu"
2704             enable cmov
2705             enable fast_cmov
2706         ;;
2707         # targets that do support conditional mov but on which it's slow
2708         pentium4|pentium4m|prescott|nocona)
2709             cpuflags="-march=$cpu"
2710             enable cmov
2711             disable fast_cmov
2712         ;;
2713     esac
2714
2715 elif enabled sparc; then
2716
2717     case $cpu in
2718         niagara)
2719             cpuflags="-mcpu=$cpu"
2720             disable vis
2721         ;;
2722         sparc64)
2723             cpuflags="-mcpu=v9"
2724         ;;
2725     esac
2726
2727 elif enabled arm; then
2728
2729     case $cpu in
2730         armv*)
2731             cpuflags="-march=$cpu"
2732             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2733         ;;
2734         *)
2735             cpuflags="-mcpu=$cpu"
2736             case $cpu in
2737                 cortex-a*)                               subarch=armv7a  ;;
2738                 cortex-r*)                               subarch=armv7r  ;;
2739                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2740                 arm11*)                                  subarch=armv6   ;;
2741                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2742                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2743             esac
2744         ;;
2745     esac
2746
2747 elif enabled alpha; then
2748
2749     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2750
2751 elif enabled bfin; then
2752
2753     cpuflags="-mcpu=$cpu"
2754
2755 elif enabled mips; then
2756
2757     cpuflags="-march=$cpu"
2758
2759     case $cpu in
2760         24kc)
2761             disable mipsfpu
2762             disable mipsdspr1
2763             disable mipsdspr2
2764         ;;
2765         24kf*)
2766             disable mipsdspr1
2767             disable mipsdspr2
2768         ;;
2769         24kec|34kc|1004kc)
2770             disable mipsfpu
2771             disable mipsdspr2
2772         ;;
2773         24kef*|34kf*|1004kf*)
2774             disable mipsdspr2
2775         ;;
2776         74kc)
2777             disable mipsfpu
2778         ;;
2779     esac
2780
2781 elif enabled avr32; then
2782
2783     case $cpu in
2784         ap7[02]0[0-2])
2785             subarch="avr32_ap"
2786             cpuflags="-mpart=$cpu"
2787         ;;
2788         ap)
2789             subarch="avr32_ap"
2790             cpuflags="-march=$cpu"
2791         ;;
2792         uc3[ab]*)
2793             subarch="avr32_uc"
2794             cpuflags="-mcpu=$cpu"
2795         ;;
2796         uc)
2797             subarch="avr32_uc"
2798             cpuflags="-march=$cpu"
2799         ;;
2800     esac
2801
2802 fi
2803
2804 add_cflags $cpuflags
2805 add_asflags $cpuflags
2806
2807 # compiler sanity check
2808 check_exec <<EOF
2809 int main(void){ return 0; }
2810 EOF
2811 if test "$?" != 0; then
2812     echo "$cc is unable to create an executable file."
2813     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2814         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2815         echo "Only do this if you know what cross compiling means."
2816     fi
2817     die "C compiler test failed."
2818 fi
2819
2820 add_cppflags -D_ISOC99_SOURCE
2821 add_cxxflags -D__STDC_CONSTANT_MACROS
2822 check_cflags -std=c99
2823 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2824 #include <stdlib.h>
2825 EOF
2826 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2827 #include <stdlib.h>
2828 EOF
2829
2830 check_host_cflags -std=c99
2831 check_host_cflags -Wall
2832
2833 case "$arch" in
2834     alpha|ia64|mips|parisc|sparc)
2835         spic=$shared
2836     ;;
2837     x86)
2838         subarch="x86_32"
2839         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2840         if test "$subarch" = "x86_64"; then
2841             spic=$shared
2842         fi
2843     ;;
2844     ppc)
2845         check_cc <<EOF && subarch="ppc64"
2846         int test[(int)sizeof(char*) - 7];
2847 EOF
2848     ;;
2849 esac
2850
2851 enable $subarch
2852 enabled spic && enable pic
2853
2854 # OS specific
2855 case $target_os in
2856     haiku)
2857         prefix_default="/boot/common"
2858         network_extralibs="-lnetwork"
2859         host_libs=
2860         ;;
2861     sunos)
2862         FFSERVERLDFLAGS=""
2863         SHFLAGS='-shared -Wl,-h,$$(@F)'
2864         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2865         network_extralibs="-lsocket -lnsl"
2866         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2867         # When using suncc to build, the Solaris linker will mark
2868         # an executable with each instruction set encountered by
2869         # the Solaris assembler.  As our libraries contain their own
2870         # guards for processor-specific code, instead suppress
2871         # generation of the HWCAPS ELF section on Solaris x86 only.
2872         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2873         nm_opts='-P -g'
2874         ;;
2875     netbsd)
2876         disable symver
2877         oss_indev_extralibs="-lossaudio"
2878         oss_outdev_extralibs="-lossaudio"
2879         ;;
2880     openbsd|bitrig)
2881         # On OpenBSD 4.5. the compiler does not use PIC unless
2882         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2883         # however the generated executable will not do anything
2884         # (simply quits with exit-code 1, no crash, no output).
2885         # Thus explicitly enable PIC here.
2886         enable pic
2887         disable symver
2888         SHFLAGS='-shared'
2889         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2890         oss_indev_extralibs="-lossaudio"
2891         oss_outdev_extralibs="-lossaudio"
2892         ;;
2893     dragonfly)
2894         disable symver
2895         ;;
2896     freebsd)
2897         ;;
2898     bsd/os)
2899         add_extralibs -lpoll -lgnugetopt
2900         strip="strip -d"
2901         ;;
2902     darwin)
2903         gas="gas-preprocessor.pl $cc"
2904         enabled ppc && add_asflags -force_cpusubtype_ALL
2905         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2906         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2907         strip="${strip} -x"
2908         add_ldflags -Wl,-dynamic,-search_paths_first
2909         SLIBSUF=".dylib"
2910         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2911         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2912         FFSERVERLDFLAGS=-Wl,-bind_at_load
2913         objformat="macho"
2914         enabled x86_64 && objformat="macho64"
2915         enabled_any pic shared ||
2916             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2917         ;;
2918     mingw32*)
2919         if test $target_os = "mingw32ce"; then
2920             disable network
2921         else
2922             target_os=mingw32
2923         fi
2924         LIBTARGET=i386
2925         if enabled x86_64; then
2926             LIBTARGET="i386:x86-64"
2927         elif enabled arm; then
2928             LIBTARGET=arm-wince
2929         fi
2930         shlibdir_default="$bindir_default"
2931         SLIBPREF=""
2932         SLIBSUF=".dll"
2933         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2934         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2935         dlltool="${cross_prefix}dlltool"
2936         if check_cmd lib.exe -list; then
2937             SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2938             if enabled x86_64; then
2939                 LIBTARGET=x64
2940             fi
2941         elif check_cmd $dlltool --version; then
2942             SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2943         fi
2944         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2945         SLIB_INSTALL_LINKS=
2946         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2947         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2948         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2949         objformat="win32"
2950         enable dos_paths
2951         check_cflags -fno-common
2952         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2953                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2954                 die "ERROR: MinGW runtime version must be >= 3.15."
2955         add_cppflags -U__STRICT_ANSI__
2956         ;;
2957     cygwin*)
2958         target_os=cygwin
2959         shlibdir_default="$bindir_default"
2960         SLIBPREF="cyg"
2961         SLIBSUF=".dll"
2962         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2963         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2964         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2965         SLIB_INSTALL_LINKS=
2966         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
2967         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
2968         objformat="win32"
2969         enable dos_paths
2970         check_cflags -fno-common
2971         add_cppflags -U__STRICT_ANSI__
2972         ;;
2973     *-dos|freedos|opendos)
2974         network_extralibs="-lsocket"
2975         objformat="coff"
2976         enable dos_paths
2977         add_cppflags -U__STRICT_ANSI__
2978         ;;
2979     linux)
2980         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2981         enable dv1394
2982         ;;
2983     irix*)
2984         target_os=irix
2985         ranlib="echo ignoring ranlib"
2986         ;;
2987     os/2*)
2988         strip="lxlite -CS"
2989         ln_s="cp -f"
2990         objformat="aout"
2991         add_cppflags -D_GNU_SOURCE
2992         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2993         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2994         FFSERVERLDFLAGS=""
2995         LIBSUF="_s.a"
2996         SLIBPREF=""
2997         SLIBSUF=".dll"
2998         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2999         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3000         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3001           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3002           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3003           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3004           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3005           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3006         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3007           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3008         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3009         enable dos_paths
3010         enable_weak os2threads
3011         ;;
3012     gnu/kfreebsd)
3013         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
3014         ;;
3015     gnu)
3016         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3017         ;;
3018     qnx)
3019         add_cppflags -D_QNX_SOURCE
3020         network_extralibs="-lsocket"
3021         ;;
3022     symbian)
3023         SLIBSUF=".dll"
3024         enable dos_paths
3025         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3026         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3027         add_ldflags -Wl,--target1-abs,--no-undefined \
3028                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3029                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3030         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3031                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3032                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3033         ;;
3034     none)
3035         ;;
3036     *)
3037         die "Unknown OS '$target_os'."
3038         ;;
3039 esac
3040
3041 esc(){
3042     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3043 }
3044
3045 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3046
3047 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3048
3049 set_default $PATHS_LIST
3050
3051 # we need to build at least one lib type
3052 if ! enabled_any static shared; then
3053     cat <<EOF
3054 At least one library type must be built.
3055 Specify --enable-static to build the static libraries or --enable-shared to
3056 build the shared libraries as well. To only build the shared libraries specify
3057 --disable-static in addition to --enable-shared.
3058 EOF
3059     exit 1;
3060 fi
3061
3062 die_license_disabled() {
3063     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3064 }
3065
3066 die_license_disabled_gpl() {
3067     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3068 }
3069
3070 die_license_disabled gpl libcdio
3071 die_license_disabled gpl libutvideo
3072 die_license_disabled gpl libx264
3073 die_license_disabled gpl libxavs
3074 die_license_disabled gpl libxvid
3075 die_license_disabled gpl x11grab
3076
3077 die_license_disabled nonfree libaacplus
3078 die_license_disabled nonfree libfaac
3079 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3080 enabled gpl && die_license_disabled_gpl nonfree openssl
3081
3082 die_license_disabled version3 libopencore_amrnb
3083 die_license_disabled version3 libopencore_amrwb
3084 die_license_disabled version3 libvo_aacenc
3085 die_license_disabled version3 libvo_amrwbenc
3086
3087 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3088
3089 disabled optimizations || check_cflags -fomit-frame-pointer
3090
3091 enable_pic() {
3092     enable pic
3093     add_cppflags -DPIC
3094     add_cflags   -fPIC
3095     add_asflags  -fPIC
3096 }
3097
3098 enabled pic && enable_pic
3099
3100 check_cc <<EOF || die "Symbol mangling check failed."
3101 int ff_extern;
3102 EOF
3103 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3104 extern_prefix=${sym%%ff_extern*}
3105
3106 check_cc <<EOF && enable inline_asm
3107 void foo(void) { __asm__ volatile ("" ::); }
3108 EOF
3109
3110 _restrict=
3111 for restrict_keyword in restrict __restrict__ __restrict; do
3112     check_cc <<EOF && _restrict=$restrict_keyword && break
3113 void foo(char * $restrict_keyword p);
3114 EOF
3115 done
3116
3117 check_cc <<EOF && enable attribute_packed
3118 struct { int x; } __attribute__((packed)) x;
3119 EOF
3120
3121 check_cc <<EOF && enable attribute_may_alias
3122 union { int x; } __attribute__((may_alias)) x;
3123 EOF
3124
3125 check_cc <<EOF || die "endian test failed"
3126 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3127 EOF
3128 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3129
3130 if enabled alpha; then
3131
3132     check_cflags -mieee
3133
3134 elif enabled arm; then
3135
3136     enabled thumb && check_cflags -mthumb || check_cflags -marm
3137     nogas=die
3138
3139     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3140         enable vfp_args
3141     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3142         case "${cross_prefix:-$cc}" in
3143             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3144             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3145 __asm__ (".eabi_attribute 28, 1");
3146 int main(void) { return 0; }
3147 EOF
3148         esac
3149         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3150     fi
3151
3152     enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3153     enabled armv6   && check_inline_asm armv6   '"sadd16 r0, r0, r0"'
3154     enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3155     enabled armvfp  && check_inline_asm armvfp  '"fadds s0, s0, s0"'
3156     enabled neon    && check_inline_asm neon    '"vadd.i16 q0, q0, q0"'
3157     enabled vfpv3   && check_inline_asm vfpv3   '"vmov.f32 s0, #1.0"'
3158
3159     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3160     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3161
3162     enabled_all armv6t2 shared !pic && enable_pic
3163
3164 elif enabled mips; then
3165
3166     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3167     enabled mmi && check_inline_asm mmi '"lq $2, 0($2)"'
3168     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3169      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3170     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3171      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3172     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3173      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3174     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3175      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3176
3177 elif enabled ppc; then
3178
3179     enable local_aligned_8 local_aligned_16
3180
3181     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3182     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3183     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3184     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3185
3186     # AltiVec flags: The FSF version of GCC differs from the Apple version
3187     if enabled altivec; then
3188         nogas=warn
3189         check_cflags -maltivec -mabi=altivec &&
3190         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3191         check_cflags -faltivec
3192
3193         # check if our compiler supports Motorola AltiVec C API
3194         check_cc <<EOF || disable altivec
3195 $inc_altivec_h
3196 int main(void) {
3197     vector signed int v1 = (vector signed int) { 0 };
3198     vector signed int v2 = (vector signed int) { 1 };
3199     v1 = vec_add(v1, v2);
3200     return 0;
3201 }
3202 EOF
3203
3204         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3205     fi
3206
3207 elif enabled sparc; then
3208
3209     enabled vis &&
3210         check_inline_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3211         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3212
3213 elif enabled x86; then
3214
3215     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3216     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3217     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3218     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3219
3220     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3221
3222     enable local_aligned_8 local_aligned_16
3223
3224     # check whether EBP is available on x86
3225     # As 'i' is stored on the stack, this program will crash
3226     # if the base pointer is used to access it because the
3227     # base pointer is cleared in the inline assembly code.
3228     check_exec_crash <<EOF && enable ebp_available
3229     volatile int i=0;
3230     __asm__ volatile (
3231         "xorl %%ebp, %%ebp"
3232     ::: "%ebp");
3233     return i;
3234 EOF
3235
3236     # check whether EBX is available on x86
3237     check_inline_asm ebx_available '""::"b"(0)' &&
3238         check_inline_asm ebx_available '"":::"%ebx"'
3239
3240     # check whether xmm clobbers are supported
3241     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3242
3243     # check whether binutils is new enough to compile SSSE3/MMXEXT
3244     enabled ssse3  && check_inline_asm ssse3  '"pabsw %xmm0, %xmm0"'
3245     enabled mmxext && check_inline_asm mmxext '"pmaxub %mm0, %mm1"'
3246
3247     if ! disabled_any asm mmx yasm; then
3248         if check_cmd $yasmexe --version; then
3249             enabled x86_64 && yasm_extra="-m amd64"
3250             yasm_debug="-g dwarf2"
3251         elif check_cmd nasm -v; then
3252             yasmexe=nasm
3253             yasm_debug="-g -F dwarf"
3254             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3255         fi
3256
3257         YASMFLAGS="-f $objformat $yasm_extra"
3258         enabled pic               && append YASMFLAGS "-DPIC"
3259         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3260         case "$objformat" in
3261             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3262         esac
3263
3264         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3265             die "yasm not found, use --disable-yasm for a crippled build"
3266         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3267         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4
3268         check_yasm "CPU amdnop" && enable cpunop
3269     fi
3270
3271     case "$cpu" in
3272         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3273             disable fast_clz
3274         ;;
3275     esac
3276
3277 fi
3278
3279 if enabled asm; then
3280     as=${gas:=$as}
3281     check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3282         $nogas "GNU assembler not found, install gas-preprocessor"
3283 fi
3284
3285 check_ldflags -Wl,--as-needed
3286
3287 if check_func dlopen; then
3288     ldl=
3289 elif check_func dlopen -ldl; then
3290     ldl=-ldl
3291 fi
3292
3293 if enabled network; then
3294     check_type "sys/types.h sys/socket.h" socklen_t
3295     check_type netdb.h "struct addrinfo"
3296     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3297     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3298     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3299     check_type netinet/in.h "struct sockaddr_in6"
3300     check_type poll.h "struct pollfd"
3301     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3302     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3303     check_type netinet/sctp.h "struct sctp_event_subscribe"
3304     check_func getaddrinfo $network_extralibs
3305     # Prefer arpa/inet.h over winsock2
3306     if check_header arpa/inet.h ; then
3307         check_func closesocket
3308     elif check_header winsock2.h ; then
3309         check_func_headers winsock2.h closesocket -lws2 &&
3310             network_extralibs="-lws2" ||
3311         { check_func_headers winsock2.h closesocket -lws2_32 &&
3312             network_extralibs="-lws2_32"; }
3313         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3314         check_type ws2tcpip.h socklen_t
3315         check_type ws2tcpip.h "struct addrinfo"
3316         check_type ws2tcpip.h "struct group_source_req"
3317         check_type ws2tcpip.h "struct ip_mreq_source"
3318         check_type ws2tcpip.h "struct ipv6_mreq"
3319         check_type winsock2.h "struct pollfd"
3320         check_type ws2tcpip.h "struct sockaddr_in6"
3321         check_type ws2tcpip.h "struct sockaddr_storage"
3322         check_struct winsock2.h "struct sockaddr" sa_len
3323     else
3324         disable network
3325     fi
3326 fi
3327
3328 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3329 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3330
3331 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3332 check_func  fcntl
3333 check_func  fork
3334 check_func  gethrtime
3335 check_func  getopt
3336 check_func  getrusage
3337 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3338 check_func  gettimeofday
3339 check_func  inet_aton $network_extralibs
3340 check_func  isatty
3341 check_func  localtime_r
3342 check_func  ${malloc_prefix}memalign            && enable memalign
3343 check_func  mkstemp
3344 check_func  mmap
3345 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3346 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3347 check_func  setrlimit
3348 check_func  strerror_r
3349 check_func  strptime
3350 check_func  sched_getaffinity
3351 check_func  sysconf
3352 check_func  sysctl
3353 check_func  usleep
3354 check_func_headers conio.h kbhit
3355 check_func_headers windows.h PeekNamedPipe
3356 check_func_headers io.h setmode
3357 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3358 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3359 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3360 check_func_headers windows.h GetProcessAffinityMask
3361 check_func_headers windows.h GetProcessTimes
3362 check_func_headers windows.h GetSystemTimeAsFileTime
3363 check_func_headers windows.h MapViewOfFile
3364 check_func_headers windows.h Sleep
3365 check_func_headers windows.h VirtualAlloc
3366 check_func_headers glob.h glob
3367
3368 check_header dlfcn.h
3369 check_header dxva.h
3370 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3371 check_header libcrystalhd/libcrystalhd_if.h
3372 check_header malloc.h
3373 check_header poll.h
3374 check_header sys/mman.h
3375 check_header sys/param.h
3376 check_header sys/resource.h
3377 check_header sys/select.h
3378 check_header sys/time.h
3379 check_header termios.h
3380 check_header unistd.h
3381 check_header vdpau/vdpau.h
3382 check_header vdpau/vdpau_x11.h
3383 check_header windows.h
3384 check_header X11/extensions/XvMClib.h
3385 check_header asm/types.h
3386
3387 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3388 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3389
3390 # check for VDA header
3391 if ! disabled vda; then
3392     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3393         enable vda
3394         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3395     fi
3396 fi
3397
3398 if ! disabled w32threads && ! enabled pthreads; then
3399     check_func _beginthreadex && enable w32threads
3400 fi
3401
3402 # check for some common methods of building with pthread support
3403 # do this before the optional library checks as some of them require pthreads
3404 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3405     enable pthreads
3406     if check_func pthread_create; then
3407         :
3408     elif check_func pthread_create -pthread; then
3409         add_cflags -pthread
3410         add_extralibs -pthread
3411     elif check_func pthread_create -pthreads; then
3412         add_cflags -pthreads
3413         add_extralibs -pthreads
3414     elif check_func pthread_create -lpthreadGC2; then
3415         add_extralibs -lpthreadGC2
3416     elif ! check_lib pthread.h pthread_create -lpthread; then
3417         disable pthreads
3418     fi
3419 fi
3420
3421 for thread in $THREADS_LIST; do
3422     if enabled $thread; then
3423         test -n "$thread_type" &&
3424             die "ERROR: Only one thread type must be selected." ||
3425             thread_type="$thread"
3426     fi
3427 done
3428
3429 if enabled pthreads; then
3430   check_func pthread_cancel
3431 fi
3432
3433 check_lib math.h sin -lm && LIBM="-lm"
3434 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3435 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3436
3437 check_mathfunc cbrtf
3438 check_mathfunc exp2
3439 check_mathfunc exp2f
3440 check_mathfunc isinf
3441 check_mathfunc isnan
3442 check_mathfunc llrint
3443 check_mathfunc llrintf
3444 check_mathfunc log2
3445 check_mathfunc log2f
3446 check_mathfunc lrint
3447 check_mathfunc lrintf
3448 check_mathfunc rint
3449 check_mathfunc round
3450 check_mathfunc roundf
3451 check_mathfunc trunc
3452 check_mathfunc truncf
3453
3454 # these are off by default, so fail if requested and not available
3455 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3456 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3457 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3458 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3459 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3460 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3461 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3462 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3463 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3464                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3465                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3466 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3467 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3468 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3469 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"
3470 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3471 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3472 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3473 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3474 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3475 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3476 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3477 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3478 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3479 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3480 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3481 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3482 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3483 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3484 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3485 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3486 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3487     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3488     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3489 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3490 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3491                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3492                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3493 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3494 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3495 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3496 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3497 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3498 enabled libvpx     && {
3499     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3500                                 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3501     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3502                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3503 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3504                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3505                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3506 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3507 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3508 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3509                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3510                         die "ERROR: openal not found"; } &&
3511                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3512                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3513 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3514                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3515                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3516                         die "ERROR: openssl not found"; }
3517
3518 if enabled gnutls; then
3519     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3520     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3521 fi
3522
3523 # libdc1394 check
3524 if enabled libdc1394; then
3525     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3526         enable libdc1394_2; } ||
3527     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3528         enable libdc1394_1; } ||
3529     die "ERROR: No version of libdc1394 found "
3530 fi
3531
3532 SDL_CONFIG="${cross_prefix}sdl-config"
3533 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3534     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3535     enable sdl &&
3536     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3537 else
3538   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3539     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3540     sdl_libs=$("${SDL_CONFIG}" --libs)
3541     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3542     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3543     enable sdl &&
3544     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3545   fi
3546 fi
3547 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3548
3549 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3550 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3551 perl --version > /dev/null 2>&1 && enable perl || disable perl
3552 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3553
3554 check_header linux/fb.h
3555 check_header linux/videodev.h
3556 check_header linux/videodev2.h
3557 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3558
3559 check_header sys/videoio.h
3560
3561 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3562 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3563 # w32api 3.12 had it defined wrong
3564 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3565
3566 check_type "dshow.h" IBaseFilter
3567
3568 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3569 { check_header dev/bktr/ioctl_meteor.h &&
3570   check_header dev/bktr/ioctl_bt848.h; } ||
3571 { check_header machine/ioctl_meteor.h &&
3572   check_header machine/ioctl_bt848.h; } ||
3573 { check_header dev/video/meteor/ioctl_meteor.h &&
3574   check_header dev/video/bktr/ioctl_bt848.h; } ||
3575 check_header dev/ic/bt8xx.h
3576
3577 check_header sndio.h
3578 if check_struct sys/soundcard.h audio_buf_info bytes; then
3579     enable_safe sys/soundcard.h
3580 else
3581     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3582     #include <sys/soundcard.h>
3583     audio_buf_info abc;
3584 EOF
3585 fi
3586 check_header soundcard.h
3587
3588 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3589
3590 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3591     check_func jack_port_get_latency_range -ljack
3592
3593 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3594
3595 enabled libcdio &&
3596     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3597
3598 enabled x11grab                                           &&
3599 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3600 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3601 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3602
3603 if ! disabled vaapi; then
3604     check_lib va/va.h vaInitialize -lva && {
3605         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3606         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3607     } || disable vaapi
3608 fi
3609
3610 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3611 check_cpp_condition \
3612     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3613     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3614       disable vdpau; }
3615 fi
3616
3617 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3618 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3619 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"
3620
3621 # add some useful compiler flags if supported
3622 check_cflags -Wdeclaration-after-statement
3623 check_cflags -Wall
3624 check_cflags -Wno-parentheses
3625 check_cflags -Wno-switch
3626 check_cflags -Wno-format-zero-length
3627 check_cflags -Wdisabled-optimization
3628 check_cflags -Wpointer-arith
3629 check_cflags -Wredundant-decls
3630 check_cflags -Wno-pointer-sign
3631 check_cflags -Wwrite-strings
3632 check_cflags -Wtype-limits
3633 check_cflags -Wundef
3634 check_cflags -Wmissing-prototypes
3635 check_cflags -Wno-pointer-to-int-cast
3636 check_cflags -Wstrict-prototypes
3637 enabled extra_warnings && check_cflags -Winline
3638
3639 # add some linker flags
3640 check_ldflags -Wl,--warn-common
3641 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3642 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3643
3644 enabled xmm_clobber_test &&
3645     check_ldflags -Wl,--wrap,avcodec_open2              \
3646                   -Wl,--wrap,avcodec_decode_audio4      \
3647                   -Wl,--wrap,avcodec_decode_video2      \
3648                   -Wl,--wrap,avcodec_decode_subtitle2   \
3649                   -Wl,--wrap,avcodec_encode_audio2      \
3650                   -Wl,--wrap,avcodec_encode_video       \
3651                   -Wl,--wrap,avcodec_encode_subtitle    \
3652                   -Wl,--wrap,sws_scale ||
3653     disable xmm_clobber_test
3654
3655 echo "X{};" > $TMPV
3656 if test_ldflags -Wl,--version-script,$TMPV; then
3657     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3658     check_cc <<EOF && enable symver_asm_label
3659 void ff_foo(void) __asm__ ("av_foo@VERSION");
3660 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3661 EOF
3662     check_cc <<EOF && enable symver_gnu_asm
3663 __asm__(".symver ff_foo,av_foo@VERSION");
3664 void ff_foo(void) {}
3665 EOF
3666 fi
3667
3668 if [ -n "$optflags" ]; then
3669     add_cflags $optflags
3670 elif enabled small; then
3671     add_cflags $cflags_size
3672 elif enabled optimizations; then
3673     add_cflags $cflags_speed
3674 else
3675     add_cflags $cflags_noopt
3676 fi
3677 check_cflags -fno-math-errno
3678 check_cflags -fno-signed-zeros
3679 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3680 int x;
3681 EOF
3682
3683
3684 if enabled icc; then
3685     # Just warnings, no remarks
3686     check_cflags -w1
3687     # -wd: Disable following warnings
3688     # 144, 167, 556: -Wno-pointer-sign
3689     # 1292: attribute "foo" ignored
3690     # 1419: external declaration in primary source file
3691     # 10006: ignoring unknown option -fno-signed-zeros
3692     # 10148: ignoring unknown option -Wno-parentheses
3693     # 10156: ignoring option '-W'; no argument required
3694     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3695     # 11030: Warning unknown option --as-needed
3696     # 10156: ignoring option '-export'; no argument required
3697     check_ldflags -wd10156,11030
3698     # Allow to compile with optimizations
3699     check_ldflags -march=$cpu
3700     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3701     enable ebp_available
3702     if enabled x86_32; then
3703         icc_version=$($cc -dumpversion)
3704         test ${icc_version%%.*} -ge 11 &&
3705             check_cflags -falign-stack=maintain-16-byte ||
3706             disable aligned_stack
3707     fi
3708 elif enabled ccc; then
3709     # disable some annoying warnings
3710     add_cflags -msg_disable cvtu32to64
3711     add_cflags -msg_disable embedcomment
3712     add_cflags -msg_disable needconstext
3713     add_cflags -msg_disable nomainieee
3714     add_cflags -msg_disable ptrmismatch1
3715     add_cflags -msg_disable unreachcode
3716 elif enabled gcc; then
3717     check_cflags -fno-tree-vectorize
3718     check_cflags -Werror=implicit-function-declaration
3719     check_cflags -Werror=missing-prototypes
3720 elif enabled llvm_gcc; then
3721     check_cflags -mllvm -stack-alignment=16
3722 elif enabled clang; then
3723     check_cflags -mllvm -stack-alignment=16
3724     check_cflags -Qunused-arguments
3725 elif enabled armcc; then
3726     # 2523: use of inline assembler is deprecated
3727     add_cflags -W${armcc_opt},--diag_suppress=2523
3728     add_cflags -W${armcc_opt},--diag_suppress=1207
3729     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3730     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3731     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3732     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3733 elif enabled tms470; then
3734     add_cflags -pds=824 -pds=837
3735 elif enabled pathscale; then
3736     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3737 fi
3738
3739 enabled_any $THREADS_LIST      && enable threads
3740
3741 check_deps $CONFIG_LIST       \
3742            $CONFIG_EXTRA      \
3743            $HAVE_LIST         \
3744            $ALL_COMPONENTS    \
3745            $ALL_TESTS         \
3746
3747 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3748
3749 if test $target_os = "haiku"; then
3750     disable memalign
3751     disable posix_memalign
3752 fi
3753
3754 ! enabled_any memalign posix_memalign aligned_malloc &&
3755     enabled_any $need_memalign && enable memalign_hack
3756
3757 # add_dep lib dep
3758 # -> enable ${lib}_deps_${dep}
3759 # -> add $dep to ${lib}_deps only once
3760 add_dep() {
3761     lib=$1
3762     dep=$2
3763     enabled "${lib}_deps_${dep}" && return 0
3764     enable  "${lib}_deps_${dep}"
3765     prepend "${lib}_deps" $dep
3766 }
3767
3768 # merge deps lib components
3769 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3770 merge_deps() {
3771     lib=$1
3772     shift
3773     for comp in $*; do
3774         enabled $comp || continue
3775         eval "dep=\"\$${comp}_deps\""
3776         for d in $dep; do
3777             add_dep $lib $d
3778         done
3779     done
3780 }
3781
3782 merge_deps libavfilter $FILTER_LIST
3783
3784 echo "install prefix            $prefix"
3785 echo "source path               $source_path"
3786 echo "C compiler                $cc"
3787 echo "ARCH                      $arch ($cpu)"
3788 if test "$build_suffix" != ""; then
3789     echo "build suffix              $build_suffix"
3790 fi
3791 if test "$progs_suffix" != ""; then
3792     echo "progs suffix              $progs_suffix"
3793 fi
3794 if test "$extra_version" != ""; then
3795     echo "version string suffix     $extra_version"
3796 fi
3797 echo "big-endian                ${bigendian-no}"
3798 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3799 if enabled x86; then
3800     echo "${yasmexe}                      ${yasm-no}"
3801     echo "MMX enabled               ${mmx-no}"
3802     echo "MMXEXT enabled            ${mmxext-no}"
3803     echo "3DNow! enabled            ${amd3dnow-no}"
3804     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3805     echo "SSE enabled               ${sse-no}"
3806     echo "SSSE3 enabled             ${ssse3-no}"
3807     echo "AVX enabled               ${avx-no}"
3808     echo "FMA4 enabled              ${fma4-no}"
3809     echo "CMOV enabled              ${cmov-no}"
3810     echo "CMOV is fast              ${fast_cmov-no}"
3811     echo "EBX available             ${ebx_available-no}"
3812     echo "EBP available             ${ebp_available-no}"
3813 fi
3814 if enabled arm; then
3815     echo "ARMv5TE enabled           ${armv5te-no}"
3816     echo "ARMv6 enabled             ${armv6-no}"
3817     echo "ARMv6T2 enabled           ${armv6t2-no}"
3818     echo "ARM VFP enabled           ${armvfp-no}"
3819     echo "NEON enabled              ${neon-no}"
3820 fi
3821 if enabled mips; then
3822     echo "MMI enabled               ${mmi-no}"
3823     echo "MIPS FPU enabled          ${mipsfpu-no}"
3824     echo "MIPS32R2 enabled          ${mips32r2-no}"
3825     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3826     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3827 fi
3828 if enabled ppc; then
3829     echo "AltiVec enabled           ${altivec-no}"
3830     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3831     echo "dcbzl available           ${dcbzl-no}"
3832 fi
3833 if enabled sparc; then
3834     echo "VIS enabled               ${vis-no}"
3835 fi
3836 echo "debug symbols             ${debug-no}"
3837 echo "strip symbols             ${stripping-no}"
3838 echo "optimize for size         ${small-no}"
3839 echo "optimizations             ${optimizations-no}"
3840 echo "static                    ${static-no}"
3841 echo "shared                    ${shared-no}"
3842 echo "postprocessing support    ${postproc-no}"
3843 echo "new filter support        ${avfilter-no}"
3844 echo "network support           ${network-no}"
3845 echo "threading support         ${thread_type-no}"
3846 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3847 echo "SDL support               ${sdl-no}"
3848 echo "libdxva2 enabled          ${dxva2-no}"
3849 echo "libva enabled             ${vaapi-no}"
3850 echo "libvdpau enabled          ${vdpau-no}"
3851 echo "AVISynth enabled          ${avisynth-no}"
3852 echo "frei0r enabled            ${frei0r-no}"
3853 echo "gnutls enabled            ${gnutls-no}"
3854 echo "libaacplus enabled        ${libaacplus-no}"
3855 echo "libass enabled            ${libass-no}"
3856 echo "libcaca enabled           ${libcaca-no}"
3857 echo "libcdio support           ${libcdio-no}"
3858 echo "libcelt enabled           ${libcelt-no}"
3859 echo "libdc1394 support         ${libdc1394-no}"
3860 echo "libfaac enabled           ${libfaac-no}"
3861 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3862 echo "libgsm enabled            ${libgsm-no}"
3863 echo "libiec61883 support       ${libiec61883-no}"
3864 echo "libilbc enabled           ${libilbc-no}"
3865 echo "libmodplug enabled        ${libmodplug-no}"
3866 echo "libmp3lame enabled        ${libmp3lame-no}"
3867 echo "libnut enabled            ${libnut-no}"
3868 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3869 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3870 echo "libopencv support         ${libopencv-no}"
3871 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3872 echo "libopus enabled           ${libopus-no}"
3873 echo "libpulse enabled          ${libpulse-no}"
3874 echo "librtmp enabled           ${librtmp-no}"
3875 echo "libschroedinger enabled   ${libschroedinger-no}"
3876 echo "libspeex enabled          ${libspeex-no}"
3877 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3878 echo "libtheora enabled         ${libtheora-no}"
3879 echo "libtwolame enabled        ${libtwolame-no}"
3880 echo "libutvideo enabled        ${libutvideo-no}"
3881 echo "libv4l2 enabled           ${libv4l2-no}"
3882 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3883 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3884 echo "libvorbis enabled         ${libvorbis-no}"
3885 echo "libvpx enabled            ${libvpx-no}"
3886 echo "libx264 enabled           ${libx264-no}"
3887 echo "libxavs enabled           ${libxavs-no}"
3888 echo "libxvid enabled           ${libxvid-no}"
3889 echo "openal enabled            ${openal-no}"
3890 echo "openssl enabled           ${openssl-no}"
3891 echo "zlib enabled              ${zlib-no}"
3892 echo "bzlib enabled             ${bzlib-no}"
3893 echo "texi2html enabled         ${texi2html-no}"
3894 echo "perl enabled              ${perl-no}"
3895 echo "pod2man enabled           ${pod2man-no}"
3896 echo "makeinfo enabled          ${makeinfo-no}"
3897 test -n "$random_seed" &&
3898     echo "random seed               ${random_seed}"
3899 echo
3900
3901 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3902     echo "Enabled ${type}s:"
3903     eval list=\$$(toupper $type)_LIST
3904     print_enabled '_*' $list | sort | pr -r -3 -t
3905     echo
3906 done
3907
3908 license="LGPL version 2.1 or later"
3909 if enabled nonfree; then
3910     license="nonfree and unredistributable"
3911 elif enabled gplv3; then
3912     license="GPL version 3 or later"
3913 elif enabled lgplv3; then
3914     license="LGPL version 3 or later"
3915 elif enabled gpl; then
3916     license="GPL version 2 or later"
3917 fi
3918
3919 echo "License: $license"
3920
3921 echo "Creating config.mak and config.h..."
3922
3923 test -e Makefile || $ln_s "$source_path/Makefile" .
3924
3925 enabled stripping || strip="echo skipping strip"
3926
3927 config_files="$TMPH config.mak"
3928
3929 cat > config.mak <<EOF
3930 # Automatically generated by configure - do not modify!
3931 ifndef FFMPEG_CONFIG_MAK
3932 FFMPEG_CONFIG_MAK=1
3933 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3934 prefix=$prefix
3935 LIBDIR=\$(DESTDIR)$libdir
3936 SHLIBDIR=\$(DESTDIR)$shlibdir
3937 INCDIR=\$(DESTDIR)$incdir
3938 BINDIR=\$(DESTDIR)$bindir
3939 DATADIR=\$(DESTDIR)$datadir
3940 MANDIR=\$(DESTDIR)$mandir
3941 SRC_PATH=$source_path
3942 ifndef MAIN_MAKEFILE
3943 SRC_PATH:=\$(SRC_PATH:.%=..%)
3944 endif
3945 CC_IDENT=$cc_ident
3946 ARCH=$arch
3947 CC=$cc
3948 CXX=$cxx
3949 AS=$as
3950 LD=$ld
3951 DEPCC=$dep_cc
3952 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
3953 DEPAS=$as
3954 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
3955 YASM=$yasmexe
3956 DEPYASM=$yasmexe
3957 AR=$ar
3958 RANLIB=$ranlib
3959 CP=cp -p
3960 LN_S=$ln_s
3961 STRIP=$strip
3962 CPPFLAGS=$CPPFLAGS
3963 CFLAGS=$CFLAGS
3964 CXXFLAGS=$CXXFLAGS
3965 ASFLAGS=$ASFLAGS
3966 AS_C=$AS_C
3967 AS_O=$AS_O
3968 CC_C=$CC_C
3969 CC_O=$CC_O
3970 CXX_C=$CXX_C
3971 CXX_O=$CXX_O
3972 LD_O=$LD_O
3973 DLLTOOL=$dlltool
3974 LDFLAGS=$LDFLAGS
3975 LDFLAGS-ffserver=$FFSERVERLDFLAGS
3976 SHFLAGS=$SHFLAGS
3977 YASMFLAGS=$YASMFLAGS
3978 BUILDSUF=$build_suffix
3979 PROGSSUF=$progs_suffix
3980 FULLNAME=$FULLNAME
3981 LIBPREF=$LIBPREF
3982 LIBSUF=$LIBSUF
3983 LIBNAME=$LIBNAME
3984 SLIBPREF=$SLIBPREF
3985 SLIBSUF=$SLIBSUF
3986 EXESUF=$EXESUF
3987 EXTRA_VERSION=$extra_version
3988 CCDEP=$CCDEP
3989 CXXDEP=$CXXDEP
3990 CCDEP_FLAGS=$CCDEP_FLAGS
3991 ASDEP=$ASDEP
3992 ASDEP_FLAGS=$ASDEP_FLAGS
3993 CC_DEPFLAGS=$CC_DEPFLAGS
3994 AS_DEPFLAGS=$AS_DEPFLAGS
3995 HOSTCC=$host_cc
3996 HOSTCFLAGS=$host_cflags
3997 HOSTEXESUF=$HOSTEXESUF
3998 HOSTLDFLAGS=$host_ldflags
3999 HOSTLIBS=$host_libs
4000 DEPHOSTCC=$host_cc
4001 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4002 HOSTCCDEP=$HOSTCCDEP
4003 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4004 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4005 HOSTCC_C=$HOSTCC_C
4006 HOSTCC_O=$HOSTCC_O
4007 TARGET_EXEC=$target_exec
4008 TARGET_PATH=$target_path
4009 LIBS-ffplay=$sdl_libs
4010 CFLAGS-ffplay=$sdl_cflags
4011 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4012 EXTRALIBS=$extralibs
4013 INSTALL=$install
4014 LIBTARGET=${LIBTARGET}
4015 SLIBNAME=${SLIBNAME}
4016 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4017 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4018 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4019 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4020 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4021 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4022 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4023 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4024 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4025 NOREDZONE_FLAGS=$noredzone_flags
4026 EOF
4027
4028 get_version(){
4029     lcname=$1
4030     name=$(toupper $lcname)
4031     file=$source_path/$lcname/version.h
4032     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4033     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4034     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4035     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4036 }
4037
4038 get_version_old(){
4039     name=$1
4040     file=$source_path/$2
4041 # This condition will be removed when we stop supporting old libpostproc versions
4042 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4043     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4044     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4045 fi
4046     lcname=$(tolower $name)
4047     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4048     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4049 }
4050
4051 get_version_old LIBPOSTPROC libpostproc/postprocess.h
4052 get_version_old LIBSWRESAMPLE libswresample/swresample.h
4053
4054 get_version libavcodec
4055 get_version libavdevice
4056 get_version libavfilter
4057 get_version libavformat
4058 get_version libavresample
4059 get_version libavutil
4060 get_version libswscale
4061
4062 cat > $TMPH <<EOF
4063 /* Automatically generated by configure - do not modify! */
4064 #ifndef FFMPEG_CONFIG_H
4065 #define FFMPEG_CONFIG_H
4066 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4067 #define FFMPEG_LICENSE "$(c_escape $license)"
4068 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4069 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4070 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4071 #define av_restrict $_restrict
4072 #define EXTERN_PREFIX "${extern_prefix}"
4073 #define EXTERN_ASM ${extern_prefix}
4074 #define SLIBSUF "$SLIBSUF"
4075 #define HAVE_MMX2 HAVE_MMXEXT
4076 EOF
4077
4078 test -n "$assert_level" &&
4079     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4080
4081 test -n "$malloc_prefix" &&
4082     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4083
4084 if enabled yasm; then
4085     append config_files $TMPASM
4086     printf '' >$TMPASM
4087 fi
4088
4089 print_config ARCH_   "$config_files" $ARCH_LIST
4090 print_config HAVE_   "$config_files" $HAVE_LIST
4091 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4092                                      $CONFIG_EXTRA      \
4093                                      $ALL_COMPONENTS    \
4094
4095 cat >>config.mak <<EOF
4096 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
4097 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
4098 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
4099 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
4100 EOF
4101
4102 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4103 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4104
4105 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4106 cp_if_changed $TMPH config.h
4107 touch .config
4108
4109 enabled yasm && cp_if_changed $TMPASM config.asm
4110
4111 cat > $TMPH <<EOF
4112 /* Generated by ffconf */
4113 #ifndef AVUTIL_AVCONFIG_H
4114 #define AVUTIL_AVCONFIG_H
4115 EOF
4116
4117 test "$postproc_version" != current && cat >> $TMPH <<EOF
4118 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4119 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4120 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4121 EOF
4122
4123 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4124
4125 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4126
4127 cp_if_changed $TMPH libavutil/avconfig.h
4128
4129 test -n "$WARNINGS" && printf "\n$WARNINGS"
4130
4131 # build pkg-config files
4132
4133 pkgconfig_generate(){
4134 name=$1
4135 shortname=${name#lib}${build_suffix}
4136 comment=$2
4137 version=$3
4138 libs=$4
4139 requires=$5
4140 enabled ${name#lib} || return 0
4141 mkdir -p $name
4142 cat <<EOF > $name/$name.pc
4143 prefix=$prefix
4144 exec_prefix=\${prefix}
4145 libdir=$libdir
4146 includedir=$incdir
4147
4148 Name: $name
4149 Description: $comment
4150 Version: $version
4151 Requires: $(enabled shared || echo $requires)
4152 Requires.private: $(enabled shared && echo $requires)
4153 Conflicts:
4154 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4155 Libs.private: $(enabled shared && echo $libs)
4156 Cflags: -I\${includedir}
4157 EOF
4158
4159 mkdir -p doc/examples/pc-uninstalled
4160 includedir=${source_path}
4161 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4162 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4163 prefix=
4164 exec_prefix=
4165 libdir=\${pcfiledir}/../../../$name
4166 includedir=${includedir}
4167
4168 Name: $name
4169 Description: $comment
4170 Version: $version
4171 Requires: $requires
4172 Conflicts:
4173 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4174 Cflags: -I\${includedir}
4175 EOF
4176 }
4177
4178 libavfilter_pc_deps=""
4179 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4180 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4181 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4182 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4183 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4184 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4185
4186 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4187 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4188
4189 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4190 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4191 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4192 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4193 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4194 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4195 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4196 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4197 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"