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 Component options:
 103   --disable-doc            do not build documentation
 104   --disable-ffmpeg         disable ffmpeg build
 105   --disable-ffplay         disable ffplay build
 106   --disable-ffprobe        disable ffprobe build
 107   --disable-ffserver       disable ffserver build
 108   --disable-avdevice       disable libavdevice build
 109   --disable-avcodec        disable libavcodec build
 110   --disable-avformat       disable libavformat build
 111   --disable-swresample     disable libswresample build
 112   --disable-swscale        disable libswscale build
 113   --disable-postproc       disable libpostproc build
 114   --disable-avfilter       disable video filter support [no]
 115   --enable-avresample      enable libavresample build [no]
 116   --disable-pthreads       disable pthreads [auto]
 117   --disable-w32threads     disable Win32 threads [auto]
 118   --disable-os2threads     disable OS/2 threads [auto]
 119   --enable-x11grab         enable X11 grabbing [no]
 120   --disable-network        disable network support [no]
 121   --disable-dct            disable DCT code
 122   --disable-mdct           disable MDCT code
 123   --disable-rdft           disable RDFT code
 124   --disable-fft            disable FFT code
 125   --enable-dxva2           enable DXVA2 code
 126   --enable-vaapi           enable VAAPI code [autodetect]
 127   --enable-vda             enable VDA code   [autodetect]
 128   --enable-vdpau           enable VDPAU code [autodetect]
 129
 130 Individual component options:
 131   --disable-everything     disable all components listed below
 132   --disable-encoder=NAME   disable encoder NAME
 133   --enable-encoder=NAME    enable encoder NAME
 134   --disable-encoders       disable all encoders
 135   --disable-decoder=NAME   disable decoder NAME
 136   --enable-decoder=NAME    enable decoder NAME
 137   --disable-decoders       disable all decoders
 138   --disable-hwaccel=NAME   disable hwaccel NAME
 139   --enable-hwaccel=NAME    enable hwaccel NAME
 140   --disable-hwaccels       disable all hwaccels
 141   --disable-muxer=NAME     disable muxer NAME
 142   --enable-muxer=NAME      enable muxer NAME
 143   --disable-muxers         disable all muxers
 144   --disable-demuxer=NAME   disable demuxer NAME
 145   --enable-demuxer=NAME    enable demuxer NAME
 146   --disable-demuxers       disable all demuxers
 147   --enable-parser=NAME     enable parser NAME
 148   --disable-parser=NAME    disable parser NAME
 149   --disable-parsers        disable all parsers
 150   --enable-bsf=NAME        enable bitstream filter NAME
 151   --disable-bsf=NAME       disable bitstream filter NAME
 152   --disable-bsfs           disable all bitstream filters
 153   --enable-protocol=NAME   enable protocol NAME
 154   --disable-protocol=NAME  disable protocol NAME
 155   --disable-protocols      disable all protocols
 156   --enable-indev=NAME      enable input device NAME
 157   --disable-indev=NAME     disable input device NAME
 158   --disable-indevs         disable input devices
 159   --enable-outdev=NAME     enable output device NAME
 160   --disable-outdev=NAME    disable output device NAME
 161   --disable-outdevs        disable output devices
 162   --disable-devices        disable all devices
 163   --enable-filter=NAME     enable filter NAME
 164   --disable-filter=NAME    disable filter NAME
 165   --disable-filters        disable all filters
 166
 167 External library support:
 168   --enable-avisynth        enable reading of AVISynth script files [no]
 169   --enable-bzlib           enable bzlib [autodetect]
 170   --enable-fontconfig      enable fontconfig
 171   --enable-frei0r          enable frei0r video filtering
 172   --enable-gnutls          enable gnutls [no]
 173   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 174   --enable-libass          enable libass subtitles rendering [no]
 175   --enable-libbluray       enable BluRay reading using libbluray [no]
 176   --enable-libcelt         enable CELT decoding via libcelt [no]
 177   --enable-libcdio         enable audio CD grabbing with libcdio
 178   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 179                            and libraw1394 [no]
 180   --enable-libfaac         enable FAAC support via libfaac [no]
 181   --enable-libfreetype     enable libfreetype [no]
 182   --enable-libgsm          enable GSM support via libgsm [no]
 183   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 184   --enable-libmodplug      enable ModPlug via libmodplug [no]
 185   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 186   --enable-libnut          enable NUT (de)muxing via libnut,
 187                            native (de)muxer exists [no]
 188   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 189   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 190   --enable-libopencv       enable video filtering via libopencv [no]
 191   --enable-libopenjpeg     enable JPEG 2000 encoding/decoding via OpenJPEG [no]
 192   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 193   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 194   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 195   --enable-libspeex        enable Speex support via libspeex [no]
 196   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 197   --enable-libtheora       enable Theora encoding via libtheora [no]
 198   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 199   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 200   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 201   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 202   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 203                            native implementation exists [no]
 204   --enable-libvpx          enable VP8 support via libvpx [no]
 205   --enable-libx264         enable H.264 encoding via x264 [no]
 206   --enable-libxavs         enable AVS encoding via xavs [no]
 207   --enable-libxvid         enable Xvid encoding via xvidcore,
 208                            native MPEG-4/Xvid encoder exists [no]
 209   --enable-openal          enable OpenAL 1.1 capture support [no]
 210   --enable-openssl         enable openssl [no]
 211   --enable-zlib            enable zlib [autodetect]
 212
 213 Advanced options (experts only):
 214   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 215   --enable-cross-compile   assume a cross-compiler is used
 216   --sysroot=PATH           root of cross-build tree
 217   --sysinclude=PATH        location of cross-build system headers
 218   --target-os=OS           compiler targets OS [$target_os]
 219   --target-exec=CMD        command to run executables on target
 220   --target-path=DIR        path to view of build directory on target
 221   --nm=NM                  use nm tool NM [$nm_default]
 222   --ar=AR                  use archive tool AR [$ar_default]
 223   --as=AS                  use assembler AS [$as_default]
 224   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 225   --cc=CC                  use C compiler CC [$cc_default]
 226   --cxx=CXX                use C compiler CXX [$cxx_default]
 227   --ld=LD                  use linker LD [$ld_default]
 228   --host-cc=HOSTCC         use host C compiler HOSTCC
 229   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 230   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 231   --host-libs=HLIBS        use libs HLIBS when linking for host
 232   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 233   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 234   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 235   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 236   --extra-version=STRING   version string suffix []
 237   --optflags               override optimization-related compiler flags
 238   --build-suffix=SUFFIX    library name suffix []
 239   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 240   --progs-suffix=SUFFIX    program name suffix []
 241   --arch=ARCH              select architecture [$arch]
 242   --cpu=CPU                select the minimum required CPU (affects
 243                            instruction selection, may crash on older CPUs)
 244   --enable-pic             build position-independent code
 245   --enable-sram            allow use of on-chip SRAM
 246   --disable-symver         disable symbol versioning
 247   --disable-fastdiv        disable table-based division
 248   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 249   --disable-safe-bitstream-reader
 250                            disable buffer boundary checking in bitreaders
 251                            (faster, but may crash)
 252   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 253
 254 Optimization options (experts only):
 255   --disable-asm            disable all assembler optimizations
 256   --disable-altivec        disable AltiVec optimizations
 257   --disable-amd3dnow       disable 3DNow! optimizations
 258   --disable-amd3dnowext    disable 3DNow! extended optimizations
 259   --disable-mmx            disable MMX optimizations
 260   --disable-mmx2           disable MMX2 optimizations
 261   --disable-sse            disable SSE optimizations
 262   --disable-ssse3          disable SSSE3 optimizations
 263   --disable-avx            disable AVX optimizations
 264   --disable-armv5te        disable armv5te optimizations
 265   --disable-armv6          disable armv6 optimizations
 266   --disable-armv6t2        disable armv6t2 optimizations
 267   --disable-armvfp         disable ARM VFP optimizations
 268   --disable-mmi            disable MMI optimizations
 269   --disable-neon           disable NEON optimizations
 270   --disable-vis            disable VIS optimizations
 271   --disable-yasm           disable use of yasm assembler
 272   --disable-mips32r2       disable MIPS32R2 optimizations
 273   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 274   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 275   --disable-mipsfpu        disable floating point MIPS optimizations
 276   --postproc-version=V     build libpostproc version V.
 277                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
 278
 279 Developer options (useful when working on FFmpeg itself):
 280   --enable-coverage        build with test coverage instrumentation
 281   --disable-debug          disable debugging symbols
 282   --enable-debug=LEVEL     set the debug level [$debuglevel]
 283   --disable-optimizations  disable compiler optimizations
 284   --enable-extra-warnings  enable more compiler warnings
 285   --disable-stripping      disable stripping of executables and shared libraries
 286   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 287                            2 causes a slowdown at runtime.
 288   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 289                            leaks and errors, using the specified valgrind binary.
 290                            Cannot be combined with --target-exec
 291   --samples=PATH           location of test samples for FATE, if not set use
 292                            \$FATE_SAMPLES at make invocation time.
 293   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 294                            should be used only for debugging purposes)
 295   --enable-random          randomly enable/disable components
 296   --disable-random
 297   --enable-random=LIST     randomly enable/disable specific components or
 298   --disable-random=LIST    component groups. LIST is a comma-separated list
 299                            of NAME[:PROB] entries where NAME is a component
 300                            (group) and PROB the probability associated with
 301                            NAME (default 0.5).
 302   --random-seed=VALUE      seed value for --enable/disable-random
 303
 304 NOTE: Object files are built at the place where configure is launched.
 305 EOF
 306   exit 0
 307 }
 308
 309 quotes='""'
 310
 311 log(){
 312     echo "$@" >> $logfile
 313 }
 314
 315 log_file(){
 316     log BEGIN $1
 317     pr -n -t $1 >> $logfile
 318     log END $1
 319 }
 320
 321 echolog(){
 322     log "$@"
 323     echo "$@"
 324 }
 325
 326 warn(){
 327     log "WARNING: $*"
 328     WARNINGS="${WARNINGS}WARNING: $*\n"
 329 }
 330
 331 die(){
 332     echolog "$@"
 333     cat <<EOF
 334
 335 If you think configure made a mistake, make sure you are using the latest
 336 version from Git.  If the latest version fails, report the problem to the
 337 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 338 EOF
 339     if disabled logging; then
 340         cat <<EOF
 341 Rerun configure with logging enabled (do not use --disable-logging), and
 342 include the log this produces with your report.
 343 EOF
 344     else
 345 cat <<EOF
 346 Include the log file "$logfile" produced by configure as this will help
 347 solving the problem.
 348 EOF
 349     fi
 350     exit 1
 351 }
 352
 353 # Avoid locale weirdness, besides we really just want to translate ASCII.
 354 toupper(){
 355     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 356 }
 357
 358 tolower(){
 359     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 360 }
 361
 362 c_escape(){
 363     echo "$*" | sed 's/["\\]/\\\0/g'
 364 }
 365
 366 sh_quote(){
 367     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 368     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 369     echo "$v"
 370 }
 371
 372 cleanws(){
 373     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 374 }
 375
 376 filter(){
 377     pat=$1
 378     shift
 379     for v; do
 380         eval "case $v in $pat) echo $v ;; esac"
 381     done
 382 }
 383
 384 filter_out(){
 385     pat=$1
 386     shift
 387     for v; do
 388         eval "case $v in $pat) ;; *) echo $v ;; esac"
 389     done
 390 }
 391
 392 map(){
 393     m=$1
 394     shift
 395     for v; do eval $m; done
 396 }
 397
 398 set_all(){
 399     value=$1
 400     shift
 401     for var in $*; do
 402         eval $var=$value
 403     done
 404 }
 405
 406 set_weak(){
 407     value=$1
 408     shift
 409     for var; do
 410         eval : \${$var:=$value}
 411     done
 412 }
 413
 414 set_safe(){
 415     var=$1
 416     shift
 417     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 418 }
 419
 420 get_safe(){
 421     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 422 }
 423
 424 pushvar(){
 425     for var in $*; do
 426         eval level=\${${var}_level:=0}
 427         eval ${var}_${level}="\$$var"
 428         eval ${var}_level=$(($level+1))
 429     done
 430 }
 431
 432 popvar(){
 433     for var in $*; do
 434         eval level=\${${var}_level:-0}
 435         test $level = 0 && continue
 436         eval level=$(($level-1))
 437         eval $var="\${${var}_${level}}"
 438         eval ${var}_level=$level
 439         eval unset ${var}_${level}
 440     done
 441 }
 442
 443 enable(){
 444     set_all yes $*
 445 }
 446
 447 disable(){
 448     set_all no $*
 449 }
 450
 451 enable_weak(){
 452     set_weak yes $*
 453 }
 454
 455 disable_weak(){
 456     set_weak no $*
 457 }
 458
 459 enable_safe(){
 460     for var; do
 461         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 462     done
 463 }
 464
 465 disable_safe(){
 466     for var; do
 467         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 468     done
 469 }
 470
 471 do_enable_deep(){
 472     for var; do
 473         enabled $var && continue
 474         eval sel="\$${var}_select"
 475         eval sgs="\$${var}_suggest"
 476         pushvar var sgs
 477         enable_deep $sel
 478         popvar sgs
 479         enable_deep_weak $sgs
 480         popvar var
 481     done
 482 }
 483
 484 enable_deep(){
 485     do_enable_deep $*
 486     enable $*
 487 }
 488
 489 enable_deep_weak(){
 490     do_enable_deep $*
 491     enable_weak $*
 492 }
 493
 494 enabled(){
 495     test "${1#!}" = "$1" && op== || op=!=
 496     eval test "x\$${1#!}" $op "xyes"
 497 }
 498
 499 disabled(){
 500     test "${1#!}" = "$1" && op== || op=!=
 501     eval test "x\$${1#!}" $op "xno"
 502 }
 503
 504 enabled_all(){
 505     for opt; do
 506         enabled $opt || return 1
 507     done
 508 }
 509
 510 disabled_all(){
 511     for opt; do
 512         disabled $opt || return 1
 513     done
 514 }
 515
 516 enabled_any(){
 517     for opt; do
 518         enabled $opt && return 0
 519     done
 520 }
 521
 522 disabled_any(){
 523     for opt; do
 524         disabled $opt && return 0
 525     done
 526     return 1
 527 }
 528
 529 set_default(){
 530     for opt; do
 531         eval : \${$opt:=\$${opt}_default}
 532     done
 533 }
 534
 535 is_in(){
 536     value=$1
 537     shift
 538     for var in $*; do
 539         [ $var = $value ] && return 0
 540     done
 541     return 1
 542 }
 543
 544 check_deps(){
 545     for cfg; do
 546         cfg="${cfg#!}"
 547         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 548         disabled ${cfg}_checking && continue
 549         enable ${cfg}_checking
 550
 551         eval dep_all="\$${cfg}_deps"
 552         eval dep_any="\$${cfg}_deps_any"
 553         eval dep_sel="\$${cfg}_select"
 554         eval dep_sgs="\$${cfg}_suggest"
 555         eval dep_ifa="\$${cfg}_if"
 556         eval dep_ifn="\$${cfg}_if_any"
 557
 558         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 559         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 560         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 561
 562         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 563         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 564         enabled_all  $dep_all || disable $cfg
 565         enabled_any  $dep_any || disable $cfg
 566         disabled_any $dep_sel && disable $cfg
 567
 568         if enabled $cfg; then
 569             eval dep_extralibs="\$${cfg}_extralibs"
 570             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 571             enable_deep $dep_sel
 572             enable_deep_weak $dep_sgs
 573         fi
 574
 575         disable ${cfg}_checking
 576     done
 577 }
 578
 579 print_config_h(){
 580     enabled $1 && v=1 || v=0
 581     echo "#define $2 $v"
 582 }
 583
 584 print_config_mak(){
 585     enabled $1 && v= || v=!
 586     echo "$v$2=yes"
 587 }
 588
 589 print_config_asm(){
 590     enabled $1 && v=1 || v=0
 591     echo "%define $2 $v"
 592 }
 593
 594 print_config(){
 595     pfx=$1
 596     files=$2
 597     shift 2
 598     for cfg; do
 599         ucname="$(toupper $cfg)"
 600         for f in $files; do
 601             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 602         done
 603     done
 604 }
 605
 606 print_enabled(){
 607     test "$1" = -n && end=" " && shift || end="\n"
 608     suf=$1
 609     shift
 610     for v; do
 611         enabled $v && printf "%s$end" ${v%$suf};
 612     done
 613 }
 614
 615 append(){
 616     var=$1
 617     shift
 618     eval "$var=\"\$$var $*\""
 619 }
 620
 621 prepend(){
 622     var=$1
 623     shift
 624     eval "$var=\"$* \$$var\""
 625 }
 626
 627 add_cppflags(){
 628     append CPPFLAGS $($filter_cppflags "$@")
 629 }
 630
 631 add_cflags(){
 632     append CFLAGS $($filter_cflags "$@")
 633 }
 634
 635 add_cxxflags(){
 636     append CXXFLAGS $($filter_cflags "$@")
 637 }
 638
 639 add_asflags(){
 640     append ASFLAGS $($filter_asflags "$@")
 641 }
 642
 643 add_ldflags(){
 644     append LDFLAGS "$@"
 645 }
 646
 647 add_extralibs(){
 648     prepend extralibs "$@"
 649 }
 650
 651 check_cmd(){
 652     log "$@"
 653     "$@" >> $logfile 2>&1
 654 }
 655
 656 check_cc(){
 657     log check_cc "$@"
 658     cat > $TMPC
 659     log_file $TMPC
 660     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 661 }
 662
 663 check_cxx(){
 664     log check_cxx "$@"
 665     cat > $TMPCPP
 666     log_file $TMPCPP
 667     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
 668 }
 669
 670 check_cpp(){
 671     log check_cpp "$@"
 672     cat > $TMPC
 673     log_file $TMPC
 674     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 675 }
 676
 677 check_as(){
 678     log check_as "$@"
 679     cat > $TMPC
 680     log_file $TMPC
 681     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 682 }
 683
 684 check_asm(){
 685     log check_asm "$@"
 686     name="$1"
 687     code="$2"
 688     shift 2
 689     disable $name
 690     check_as "$@" <<EOF && enable $name
 691 void foo(void){ __asm__ volatile($code); }
 692 EOF
 693 }
 694
 695 check_yasm(){
 696     log check_yasm "$@"
 697     echo "$1" > $TMPS
 698     log_file $TMPS
 699     shift 1
 700     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 701 }
 702
 703 check_ld(){
 704     log check_ld "$@"
 705     type=$1
 706     shift 1
 707     flags=''
 708     libs=''
 709     for f; do
 710         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 711     done
 712     check_$type $($filter_cflags $flags) || return
 713     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 714 }
 715
 716 check_cppflags(){
 717     log check_cppflags "$@"
 718     set -- $($filter_cppflags "$@")
 719     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 720 int x;
 721 EOF
 722 }
 723
 724 check_cflags(){
 725     log check_cflags "$@"
 726     set -- $($filter_cflags "$@")
 727     check_cc "$@" <<EOF && append CFLAGS "$@"
 728 int x;
 729 EOF
 730 }
 731
 732 check_cxxflags(){
 733     log check_cxxflags "$@"
 734     set -- $($filter_cflags "$@")
 735     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 736 int x;
 737 EOF
 738 }
 739
 740 test_ldflags(){
 741     log test_ldflags "$@"
 742     check_ld "cc" "$@" <<EOF
 743 int main(void){ return 0; }
 744 EOF
 745 }
 746
 747 check_ldflags(){
 748     log check_ldflags "$@"
 749     test_ldflags "$@" && add_ldflags "$@"
 750 }
 751
 752 check_header(){
 753     log check_header "$@"
 754     header=$1
 755     shift
 756     disable_safe $header
 757     check_cpp "$@" <<EOF && enable_safe $header
 758 #include <$header>
 759 int x;
 760 EOF
 761 }
 762
 763 check_func(){
 764     log check_func "$@"
 765     func=$1
 766     shift
 767     disable $func
 768     check_ld "cc" "$@" <<EOF && enable $func
 769 extern int $func();
 770 int main(void){ $func(); }
 771 EOF
 772 }
 773
 774 check_mathfunc(){
 775     log check_mathfunc "$@"
 776     func=$1
 777     shift
 778     disable $func
 779     check_ld "cc" "$@" <<EOF && enable $func
 780 #include <math.h>
 781 float foo(float f) { return $func(f); }
 782 int main(void){ return (int) foo; }
 783 EOF
 784 }
 785
 786 check_func_headers(){
 787     log check_func_headers "$@"
 788     headers=$1
 789     funcs=$2
 790     shift 2
 791     {
 792         for hdr in $headers; do
 793             echo "#include <$hdr>"
 794         done
 795         for func in $funcs; do
 796             echo "long check_$func(void) { return (long) $func; }"
 797         done
 798         echo "int main(void) { return 0; }"
 799     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 800 }
 801
 802 check_class_headers_cpp(){
 803     log check_class_headers_cpp "$@"
 804     headers=$1
 805     classes=$2
 806     shift 2
 807     {
 808         for hdr in $headers; do
 809             echo "#include <$hdr>"
 810         done
 811         echo "int main(void) { "
 812         i=1
 813         for class in $classes; do
 814             echo "$class obj$i;"
 815             i=$(expr $i + 1)
 816         done
 817         echo "return 0; }"
 818     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 819 }
 820
 821 check_cpp_condition(){
 822     log check_cpp_condition "$@"
 823     header=$1
 824     condition=$2
 825     shift 2
 826     check_cpp $($filter_cppflags "$@") <<EOF
 827 #include <$header>
 828 #if !($condition)
 829 #error "unsatisfied condition: $condition"
 830 #endif
 831 EOF
 832 }
 833
 834 check_lib(){
 835     log check_lib "$@"
 836     header="$1"
 837     func="$2"
 838     shift 2
 839     check_header $header && check_func $func "$@" && add_extralibs "$@"
 840 }
 841
 842 check_lib2(){
 843     log check_lib2 "$@"
 844     headers="$1"
 845     funcs="$2"
 846     shift 2
 847     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 848 }
 849
 850 check_lib_cpp(){
 851     log check_lib_cpp "$@"
 852     headers="$1"
 853     classes="$2"
 854     shift 2
 855     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 856 }
 857
 858 check_pkg_config(){
 859     log check_pkg_config "$@"
 860     pkg="$1"
 861     headers="$2"
 862     funcs="$3"
 863     shift 3
 864     $pkg_config --exists $pkg 2>/dev/null || return
 865     pkg_cflags=$($pkg_config --cflags $pkg)
 866     pkg_libs=$($pkg_config --libs $pkg)
 867     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 868         set_safe ${pkg}_cflags $pkg_cflags   &&
 869         set_safe ${pkg}_libs   $pkg_libs
 870 }
 871
 872 check_exec(){
 873     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 874 }
 875
 876 check_exec_crash(){
 877     code=$(cat)
 878
 879     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 880     # are safe but may not be available everywhere.  Thus we use
 881     # raise(SIGTERM) instead.  The check is run in a subshell so we
 882     # can redirect the "Terminated" message from the shell.  SIGBUS
 883     # is not defined by standard C so it is used conditionally.
 884
 885     (check_exec "$@") >> $logfile 2>&1 <<EOF
 886 #include <signal.h>
 887 static void sighandler(int sig){
 888     raise(SIGTERM);
 889 }
 890 int func(void){
 891     $code
 892 }
 893 int (*func_ptr)(void) = func;
 894 int main(void){
 895     signal(SIGILL, sighandler);
 896     signal(SIGFPE, sighandler);
 897     signal(SIGSEGV, sighandler);
 898 #ifdef SIGBUS
 899     signal(SIGBUS, sighandler);
 900 #endif
 901     return func_ptr();
 902 }
 903 EOF
 904 }
 905
 906 check_type(){
 907     log check_type "$@"
 908     headers=$1
 909     type=$2
 910     shift 2
 911     disable_safe "$type"
 912     incs=""
 913     for hdr in $headers; do
 914         incs="$incs
 915 #include <$hdr>"
 916     done
 917     check_cc "$@" <<EOF && enable_safe "$type"
 918 $incs
 919 $type v;
 920 EOF
 921 }
 922
 923 check_struct(){
 924     log check_type "$@"
 925     headers=$1
 926     struct=$2
 927     member=$3
 928     shift 3
 929     disable_safe "${struct}_${member}"
 930     incs=""
 931     for hdr in $headers; do
 932         incs="$incs
 933 #include <$hdr>"
 934     done
 935     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 936 $incs
 937 const void *p = &(($struct *)0)->$member;
 938 EOF
 939 }
 940
 941 require(){
 942     name="$1"
 943     header="$2"
 944     func="$3"
 945     shift 3
 946     check_lib $header $func "$@" || die "ERROR: $name not found"
 947 }
 948
 949 require2(){
 950     name="$1"
 951     headers="$2"
 952     func="$3"
 953     shift 3
 954     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 955 }
 956
 957 require_cpp(){
 958     name="$1"
 959     headers="$2"
 960     classes="$3"
 961     shift 3
 962     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
 963 }
 964
 965 require_pkg_config(){
 966     pkg="$1"
 967     check_pkg_config "$@" || die "ERROR: $pkg not found"
 968     add_cflags    $(get_safe ${pkg}_cflags)
 969     add_extralibs $(get_safe ${pkg}_libs)
 970 }
 971
 972 check_host_cc(){
 973     log check_host_cc "$@"
 974     cat > $TMPC
 975     log_file $TMPC
 976     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 977 }
 978
 979 check_host_cflags(){
 980     log check_host_cflags "$@"
 981     check_host_cc "$@" <<EOF && append host_cflags "$@"
 982 int x;
 983 EOF
 984 }
 985
 986 apply(){
 987     file=$1
 988     shift
 989     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 990 }
 991
 992 cp_if_changed(){
 993     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 994     mkdir -p "$(dirname $2)"
 995     cp -f "$1" "$2"
 996 }
 997
 998 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 999 # system-dependent things.
1000
1001 COMPONENT_LIST="
1002     bsfs
1003     decoders
1004     demuxers
1005     encoders
1006     filters
1007     hwaccels
1008     indevs
1009     muxers
1010     outdevs
1011     parsers
1012     protocols
1013 "
1014
1015 PROGRAM_LIST="
1016     ffplay
1017     ffprobe
1018     ffserver
1019     ffmpeg
1020 "
1021
1022 CONFIG_LIST="
1023     $COMPONENT_LIST
1024     $PROGRAM_LIST
1025     ac3dsp
1026     avcodec
1027     avdevice
1028     avfilter
1029     avformat
1030     avresample
1031     avisynth
1032     bzlib
1033     crystalhd
1034     dct
1035     doc
1036     dwt
1037     dxva2
1038     fastdiv
1039     fft
1040     fontconfig
1041     frei0r
1042     gnutls
1043     gpl
1044     gray
1045     hardcoded_tables
1046     libaacplus
1047     libass
1048     libbluray
1049     libcdio
1050     libcelt
1051     libdc1394
1052     libfaac
1053     libfreetype
1054     libgsm
1055     libilbc
1056     libmodplug
1057     libmp3lame
1058     libnut
1059     libopencore_amrnb
1060     libopencore_amrwb
1061     libopencv
1062     libopenjpeg
1063     libpulse
1064     librtmp
1065     libschroedinger
1066     libspeex
1067     libstagefright_h264
1068     libtheora
1069     libutvideo
1070     libv4l2
1071     libvo_aacenc
1072     libvo_amrwbenc
1073     libvorbis
1074     libvpx
1075     libx264
1076     libxavs
1077     libxvid
1078     lsp
1079     mdct
1080     memalign_hack
1081     mpegaudiodsp
1082     network
1083     nonfree
1084     openal
1085     openssl
1086     pic
1087     postproc
1088     rdft
1089     rtpdec
1090     runtime_cpudetect
1091     safe_bitstream_reader
1092     shared
1093     sinewin
1094     small
1095     sram
1096     static
1097     swresample
1098     swscale
1099     swscale_alpha
1100     thumb
1101     vaapi
1102     vda
1103     vdpau
1104     version3
1105     xmm_clobber_test
1106     x11grab
1107     zlib
1108 "
1109
1110 THREADS_LIST='
1111     pthreads
1112     w32threads
1113     os2threads
1114 '
1115
1116 ARCH_LIST='
1117     alpha
1118     arm
1119     avr32
1120     avr32_ap
1121     avr32_uc
1122     bfin
1123     ia64
1124     m68k
1125     mips
1126     mips64
1127     parisc
1128     ppc
1129     ppc64
1130     s390
1131     sh4
1132     sparc
1133     sparc64
1134     tomi
1135     x86
1136     x86_32
1137     x86_64
1138 '
1139
1140 ARCH_EXT_LIST='
1141     altivec
1142     amd3dnow
1143     amd3dnowext
1144     armv5te
1145     armv6
1146     armv6t2
1147     armvfp
1148     avx
1149     mmi
1150     mmx
1151     mmx2
1152     neon
1153     ppc4xx
1154     sse
1155     ssse3
1156     vfpv3
1157     vis
1158     mipsfpu
1159     mips32r2
1160     mipsdspr1
1161     mipsdspr2
1162 '
1163
1164 HAVE_LIST_PUB='
1165     bigendian
1166     fast_unaligned
1167 '
1168
1169 HAVE_LIST="
1170     $ARCH_EXT_LIST
1171     $HAVE_LIST_PUB
1172     $THREADS_LIST
1173     aligned_malloc
1174     aligned_stack
1175     alsa_asoundlib_h
1176     altivec_h
1177     arpa_inet_h
1178     asm_mod_y
1179     asm_types_h
1180     attribute_may_alias
1181     attribute_packed
1182     cbrtf
1183     clock_gettime
1184     closesocket
1185     cmov
1186     dcbzl
1187     dev_bktr_ioctl_bt848_h
1188     dev_bktr_ioctl_meteor_h
1189     dev_ic_bt8xx_h
1190     dev_video_bktr_ioctl_bt848_h
1191     dev_video_meteor_ioctl_meteor_h
1192     dlfcn_h
1193     dlopen
1194     dos_paths
1195     ebp_available
1196     ebx_available
1197     exp2
1198     exp2f
1199     fast_64bit
1200     fast_clz
1201     fast_cmov
1202     fcntl
1203     fork
1204     getaddrinfo
1205     gethrtime
1206     GetProcessAffinityMask
1207     GetProcessMemoryInfo
1208     GetProcessTimes
1209     getrusage
1210     glob
1211     gnu_as
1212     ibm_asm
1213     inet_aton
1214     inline_asm
1215     isatty
1216     jack_port_get_latency_range
1217     kbhit
1218     ldbrx
1219     libdc1394_1
1220     libdc1394_2
1221     llrint
1222     llrintf
1223     local_aligned_16
1224     local_aligned_8
1225     localtime_r
1226     log2
1227     log2f
1228     loongson
1229     lrint
1230     lrintf
1231     lzo1x_999_compress
1232     machine_ioctl_bt848_h
1233     machine_ioctl_meteor_h
1234     makeinfo
1235     malloc_h
1236     MapViewOfFile
1237     memalign
1238     mkstemp
1239     mmap
1240     netinet_sctp_h
1241     PeekNamedPipe
1242     poll_h
1243     posix_memalign
1244     pthread_cancel
1245     round
1246     roundf
1247     sched_getaffinity
1248     sdl
1249     sdl_video_size
1250     setmode
1251     setrlimit
1252     sndio_h
1253     socklen_t
1254     soundcard_h
1255     strerror_r
1256     strptime
1257     struct_addrinfo
1258     struct_ipv6_mreq
1259     struct_rusage_ru_maxrss
1260     struct_sockaddr_in6
1261     struct_sockaddr_sa_len
1262     struct_sockaddr_storage
1263     struct_v4l2_frmivalenum_discrete
1264     symver
1265     symver_asm_label
1266     symver_gnu_asm
1267     sysconf
1268     sysctl
1269     sys_mman_h
1270     sys_param_h
1271     sys_resource_h
1272     sys_select_h
1273     sys_soundcard_h
1274     sys_videoio_h
1275     termios_h
1276     threads
1277     trunc
1278     truncf
1279     vfp_args
1280     VirtualAlloc
1281     winsock2_h
1282     xform_asm
1283     xmm_clobbers
1284     yasm
1285 "
1286
1287 # options emitted with CONFIG_ prefix but not available on command line
1288 CONFIG_EXTRA="
1289     aandct
1290     avutil
1291     golomb
1292     gplv3
1293     h264chroma
1294     h264dsp
1295     h264pred
1296     h264qpel
1297     huffman
1298     lgplv3
1299     lpc
1300 "
1301
1302 CMDLINE_SELECT="
1303     $ARCH_EXT_LIST
1304     $CONFIG_LIST
1305     $THREADS_LIST
1306     asm
1307     coverage
1308     cross_compile
1309     debug
1310     extra_warnings
1311     logging
1312     optimizations
1313     stripping
1314     symver
1315     yasm
1316 "
1317
1318 PATHS_LIST='
1319     bindir
1320     datadir
1321     incdir
1322     libdir
1323     mandir
1324     prefix
1325     shlibdir
1326 '
1327
1328 CMDLINE_SET="
1329     $PATHS_LIST
1330     ar
1331     arch
1332     as
1333     assert_level
1334     build_suffix
1335     cc
1336     cpu
1337     cross_prefix
1338     cxx
1339     dep_cc
1340     extra_version
1341     host_cc
1342     host_cflags
1343     host_ldflags
1344     host_libs
1345     host_os
1346     install
1347     ld
1348     logfile
1349     malloc_prefix
1350     nm
1351     optflags
1352     pkg_config
1353     postproc_version
1354     progs_suffix
1355     random_seed
1356     samples
1357     strip
1358     sysinclude
1359     sysroot
1360     target_exec
1361     target_os
1362     target_path
1363     valgrind
1364     yasmexe
1365 "
1366
1367 CMDLINE_APPEND="
1368     extra_cflags
1369     extra_cxxflags
1370 "
1371
1372 # code dependency declarations
1373
1374 # architecture extensions
1375
1376 armv5te_deps="arm"
1377 armv6_deps="arm"
1378 armv6t2_deps="arm"
1379 armvfp_deps="arm"
1380 neon_deps="arm"
1381 vfpv3_deps="armvfp"
1382
1383 mipsfpu_deps="mips"
1384 mips32r2_deps="mips"
1385 mipsdspr1_deps="mips"
1386 mipsdspr2_deps="mips"
1387 mmi_deps="mips"
1388
1389 altivec_deps="ppc"
1390 ppc4xx_deps="ppc"
1391
1392 vis_deps="sparc"
1393
1394 x86_64_suggest="cmov fast_cmov"
1395 amd3dnow_deps="mmx"
1396 amd3dnowext_deps="amd3dnow"
1397 mmx_deps="x86"
1398 mmx2_deps="mmx"
1399 sse_deps="mmx"
1400 ssse3_deps="sse"
1401 avx_deps="ssse3"
1402
1403 aligned_stack_if_any="ppc x86"
1404 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1405 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1406 fast_unaligned_if_any="armv6 ppc x86"
1407
1408 inline_asm_deps="!tms470"
1409 need_memalign="altivec neon sse"
1410
1411 symver_if_any="symver_asm_label symver_gnu_asm"
1412
1413 # subsystems
1414 dct_select="rdft"
1415 mdct_select="fft"
1416 rdft_select="fft"
1417 mpegaudiodsp_select="dct"
1418
1419 # decoders / encoders / hardware accelerators
1420 aac_decoder_select="mdct sinewin"
1421 aac_encoder_select="mdct sinewin"
1422 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1423 ac3_decoder_select="mdct ac3dsp ac3_parser"
1424 ac3_encoder_select="mdct ac3dsp"
1425 ac3_fixed_encoder_select="mdct ac3dsp"
1426 alac_encoder_select="lpc"
1427 amrnb_decoder_select="lsp"
1428 amrwb_decoder_select="lsp"
1429 amv_encoder_select="aandct"
1430 atrac1_decoder_select="mdct sinewin"
1431 atrac3_decoder_select="mdct"
1432 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1433 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1434 cavs_decoder_select="golomb"
1435 cook_decoder_select="mdct sinewin"
1436 cscd_decoder_suggest="zlib"
1437 dca_decoder_select="mdct"
1438 dirac_decoder_select="dwt golomb"
1439 dnxhd_encoder_select="aandct"
1440 dxa_decoder_select="zlib"
1441 eac3_decoder_select="ac3_decoder"
1442 eac3_encoder_select="mdct ac3dsp"
1443 eamad_decoder_select="aandct"
1444 eatgq_decoder_select="aandct"
1445 eatqi_decoder_select="aandct"
1446 ffv1_decoder_select="golomb"
1447 flac_decoder_select="golomb"
1448 flac_encoder_select="golomb lpc"
1449 flashsv_decoder_select="zlib"
1450 flashsv_encoder_select="zlib"
1451 flashsv2_encoder_select="zlib"
1452 flashsv2_decoder_select="zlib"
1453 flv_decoder_select="h263_decoder"
1454 flv_encoder_select="h263_encoder"
1455 fraps_decoder_select="huffman"
1456 h261_encoder_select="aandct"
1457 h263_decoder_select="h263_parser"
1458 h263_encoder_select="aandct"
1459 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1460 h263i_decoder_select="h263_decoder"
1461 h263p_encoder_select="h263_encoder"
1462 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1463 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1464 h264_dxva2_hwaccel_deps="dxva2api_h"
1465 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1466 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1467 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1468 h264_vda_hwaccel_select="vda h264_decoder"
1469 h264_vdpau_decoder_select="vdpau h264_decoder"
1470 iac_decoder_select="fft mdct sinewin"
1471 imc_decoder_select="fft mdct sinewin"
1472 jpegls_decoder_select="golomb"
1473 jpegls_encoder_select="golomb"
1474 ljpeg_encoder_select="aandct"
1475 loco_decoder_select="golomb"
1476 mjpeg_encoder_select="aandct"
1477 mlp_decoder_select="mlp_parser"
1478 mp1_decoder_select="mpegaudiodsp"
1479 mp1float_decoder_select="mpegaudiodsp"
1480 mp2_decoder_select="mpegaudiodsp"
1481 mp2float_decoder_select="mpegaudiodsp"
1482 mp3_decoder_select="mpegaudiodsp"
1483 mp3adu_decoder_select="mpegaudiodsp"
1484 mp3adufloat_decoder_select="mpegaudiodsp"
1485 mp3float_decoder_select="mpegaudiodsp"
1486 mp3on4_decoder_select="mpegaudiodsp"
1487 mp3on4float_decoder_select="mpegaudiodsp"
1488 mpc7_decoder_select="mpegaudiodsp"
1489 mpc8_decoder_select="mpegaudiodsp"
1490 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1491 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1492 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1493 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1494 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1495 mpeg1video_encoder_select="aandct"
1496 mpeg2_crystalhd_decoder_select="crystalhd"
1497 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1498 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1499 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1500 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1501 mpeg2video_encoder_select="aandct"
1502 mpeg4_crystalhd_decoder_select="crystalhd"
1503 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1504 mpeg4_encoder_select="h263_encoder"
1505 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1506 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1507 msmpeg4_crystalhd_decoder_select="crystalhd"
1508 msmpeg4v1_decoder_select="h263_decoder"
1509 msmpeg4v1_encoder_select="h263_encoder"
1510 msmpeg4v2_decoder_select="h263_decoder"
1511 msmpeg4v2_encoder_select="h263_encoder"
1512 msmpeg4v3_decoder_select="h263_decoder"
1513 msmpeg4v3_encoder_select="h263_encoder"
1514 nellymoser_decoder_select="mdct sinewin"
1515 nellymoser_encoder_select="mdct sinewin"
1516 png_decoder_select="zlib"
1517 png_encoder_select="zlib"
1518 qcelp_decoder_select="lsp"
1519 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1520 ra_144_encoder_select="lpc"
1521 ralf_decoder_select="golomb"
1522 rv10_decoder_select="h263_decoder"
1523 rv10_encoder_select="h263_encoder"
1524 rv20_decoder_select="h263_decoder"
1525 rv20_encoder_select="h263_encoder"
1526 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1527 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1528 shorten_decoder_select="golomb"
1529 sipr_decoder_select="lsp"
1530 snow_decoder_select="dwt"
1531 snow_encoder_select="aandct dwt"
1532 sonic_decoder_select="golomb"
1533 sonic_encoder_select="golomb"
1534 sonic_ls_encoder_select="golomb"
1535 svq1_encoder_select="aandct"
1536 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1537 svq3_decoder_suggest="zlib"
1538 theora_decoder_select="vp3_decoder"
1539 tiff_decoder_suggest="zlib"
1540 tiff_encoder_suggest="zlib"
1541 tscc_decoder_select="zlib"
1542 twinvq_decoder_select="mdct lsp sinewin"
1543 vc1_crystalhd_decoder_select="crystalhd"
1544 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1545 vc1_dxva2_hwaccel_deps="dxva2api_h"
1546 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1547 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1548 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1549 vc1image_decoder_select="vc1_decoder"
1550 vorbis_decoder_select="mdct"
1551 vorbis_encoder_select="mdct"
1552 vp6_decoder_select="huffman"
1553 vp6a_decoder_select="vp6_decoder"
1554 vp6f_decoder_select="vp6_decoder"
1555 vp8_decoder_select="h264pred h264qpel"
1556 wmapro_decoder_select="mdct sinewin"
1557 wmav1_decoder_select="mdct sinewin"
1558 wmav1_encoder_select="mdct sinewin"
1559 wmav2_decoder_select="mdct sinewin"
1560 wmav2_encoder_select="mdct sinewin"
1561 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1562 wmv1_decoder_select="h263_decoder"
1563 wmv1_encoder_select="h263_encoder"
1564 wmv2_decoder_select="h263_decoder"
1565 wmv2_encoder_select="h263_encoder"
1566 wmv3_decoder_select="vc1_decoder"
1567 wmv3_crystalhd_decoder_select="crystalhd"
1568 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1569 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1570 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1571 wmv3image_decoder_select="wmv3_decoder"
1572 zerocodec_decoder_select="zlib"
1573 zlib_decoder_select="zlib"
1574 zlib_encoder_select="zlib"
1575 zmbv_decoder_select="zlib"
1576 zmbv_encoder_select="zlib"
1577
1578 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1579 vaapi_deps="va_va_h"
1580 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1581 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1582
1583 # parsers
1584 h264_parser_select="golomb h264dsp h264pred"
1585
1586 # external libraries
1587 libaacplus_encoder_deps="libaacplus"
1588 libcelt_decoder_deps="libcelt"
1589 libfaac_encoder_deps="libfaac"
1590 libgsm_decoder_deps="libgsm"
1591 libgsm_encoder_deps="libgsm"
1592 libgsm_ms_decoder_deps="libgsm"
1593 libgsm_ms_encoder_deps="libgsm"
1594 libilbc_decoder_deps="libilbc"
1595 libilbc_encoder_deps="libilbc"
1596 libmodplug_demuxer_deps="libmodplug"
1597 libmp3lame_encoder_deps="libmp3lame"
1598 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1599 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1600 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1601 libopenjpeg_decoder_deps="libopenjpeg"
1602 libopenjpeg_encoder_deps="libopenjpeg"
1603 libschroedinger_decoder_deps="libschroedinger"
1604 libschroedinger_encoder_deps="libschroedinger"
1605 libspeex_decoder_deps="libspeex"
1606 libspeex_encoder_deps="libspeex"
1607 libstagefright_h264_decoder_deps="libstagefright_h264"
1608 libtheora_encoder_deps="libtheora"
1609 libvo_aacenc_encoder_deps="libvo_aacenc"
1610 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1611 libvorbis_decoder_deps="libvorbis"
1612 libvorbis_encoder_deps="libvorbis"
1613 libvpx_decoder_deps="libvpx"
1614 libvpx_encoder_deps="libvpx"
1615 libx264_encoder_deps="libx264"
1616 libx264rgb_encoder_deps="libx264"
1617 libxavs_encoder_deps="libxavs"
1618 libxvid_encoder_deps="libxvid"
1619 libutvideo_decoder_deps="libutvideo"
1620 libutvideo_encoder_deps="libutvideo"
1621
1622 # demuxers / muxers
1623 ac3_demuxer_select="ac3_parser"
1624 asf_stream_muxer_select="asf_muxer"
1625 avisynth_demuxer_deps="avisynth"
1626 dirac_demuxer_select="dirac_parser"
1627 eac3_demuxer_select="ac3_parser"
1628 flac_demuxer_select="flac_parser"
1629 ipod_muxer_select="mov_muxer"
1630 libnut_demuxer_deps="libnut"
1631 libnut_muxer_deps="libnut"
1632 matroska_audio_muxer_select="matroska_muxer"
1633 matroska_demuxer_suggest="zlib bzlib"
1634 mov_demuxer_suggest="zlib"
1635 mp3_demuxer_select="mpegaudio_parser"
1636 mp4_muxer_select="mov_muxer"
1637 mpegts_muxer_select="adts_muxer latm_muxer"
1638 mpegtsraw_demuxer_select="mpegts_demuxer"
1639 mxf_d10_muxer_select="mxf_muxer"
1640 ogg_demuxer_select="golomb"
1641 psp_muxer_select="mov_muxer"
1642 rtp_demuxer_select="sdp_demuxer"
1643 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1644 rtsp_demuxer_select="http_protocol rtpdec"
1645 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1646 sap_demuxer_select="sdp_demuxer"
1647 sap_muxer_select="rtp_muxer rtp_protocol"
1648 sdp_demuxer_select="rtpdec"
1649 spdif_muxer_select="aac_parser"
1650 tg2_muxer_select="mov_muxer"
1651 tgp_muxer_select="mov_muxer"
1652 w64_demuxer_deps="wav_demuxer"
1653
1654 # indevs / outdevs
1655 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1656 alsa_outdev_deps="alsa_asoundlib_h"
1657 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1658 dshow_indev_deps="IBaseFilter"
1659 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1660 dv1394_indev_deps="dv1394 dv_demuxer"
1661 fbdev_indev_deps="linux_fb_h"
1662 jack_indev_deps="jack_jack_h sem_timedwait"
1663 lavfi_indev_deps="avfilter"
1664 libcdio_indev_deps="libcdio"
1665 libdc1394_indev_deps="libdc1394"
1666 libv4l2_indev_deps="libv4l2"
1667 openal_indev_deps="openal"
1668 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1669 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1670 pulse_indev_deps="libpulse"
1671 sdl_outdev_deps="sdl"
1672 sndio_indev_deps="sndio_h"
1673 sndio_outdev_deps="sndio_h"
1674 v4l_indev_deps="linux_videodev_h"
1675 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1676 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1677 vfwcap_indev_extralibs="-lavicap32"
1678 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1679
1680 # protocols
1681 bluray_protocol_deps="libbluray"
1682 gopher_protocol_deps="network"
1683 httpproxy_protocol_deps="network"
1684 httpproxy_protocol_select="tcp_protocol"
1685 http_protocol_deps="network"
1686 http_protocol_select="tcp_protocol"
1687 https_protocol_select="tls_protocol"
1688 librtmp_protocol_deps="librtmp"
1689 librtmpe_protocol_deps="librtmp"
1690 librtmps_protocol_deps="librtmp"
1691 librtmpt_protocol_deps="librtmp"
1692 librtmpte_protocol_deps="librtmp"
1693 mmsh_protocol_select="http_protocol"
1694 mmst_protocol_deps="network"
1695 rtmp_protocol_deps="!librtmp_protocol"
1696 rtmp_protocol_select="tcp_protocol"
1697 rtmphttp_protocol_deps="!librtmp_protocol"
1698 rtmphttp_protocol_select="http_protocol"
1699 rtmpt_protocol_deps="!librtmp_protocol"
1700 rtmpt_protocol_select="rtmphttp_protocol"
1701 rtp_protocol_select="udp_protocol"
1702 sctp_protocol_deps="network netinet_sctp_h"
1703 tcp_protocol_deps="network"
1704 tls_protocol_deps_any="openssl gnutls"
1705 tls_protocol_select="tcp_protocol"
1706 udp_protocol_deps="network"
1707
1708 # filters
1709 aconvert_filter_deps="swresample"
1710 amovie_filter_deps="avcodec avformat"
1711 aresample_filter_deps="swresample"
1712 ass_filter_deps="libass"
1713 asyncts_filter_deps="avresample"
1714 atempo_filter_deps="avcodec rdft"
1715 blackframe_filter_deps="gpl"
1716 boxblur_filter_deps="gpl"
1717 colormatrix_filter_deps="gpl"
1718 cropdetect_filter_deps="gpl"
1719 delogo_filter_deps="gpl"
1720 deshake_filter_deps="avcodec"
1721 drawtext_filter_deps="libfreetype"
1722 frei0r_filter_deps="frei0r dlopen"
1723 frei0r_filter_extralibs='$ldl'
1724 frei0r_src_filter_deps="frei0r dlopen"
1725 frei0r_src_filter_extralibs='$ldl'
1726 hqdn3d_filter_deps="gpl"
1727 movie_filter_deps="avcodec avformat"
1728 mp_filter_deps="gpl avcodec swscale postproc"
1729 mptestsrc_filter_deps="gpl"
1730 negate_filter_deps="lut_filter"
1731 resample_filter_deps="avresample"
1732 ocv_filter_deps="libopencv"
1733 pan_filter_deps="swresample"
1734 removelogo_filter_deps="avcodec avformat swscale"
1735 scale_filter_deps="swscale"
1736 select_filter_deps="avcodec"
1737 super2xsai_filter_deps="gpl"
1738 tinterlace_filter_deps="gpl"
1739 yadif_filter_deps="gpl"
1740
1741 # libraries
1742 avdevice_deps="avcodec avformat"
1743 avformat_deps="avcodec"
1744 postproc_deps="gpl"
1745
1746 # programs
1747 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1748 ffmpeg_select="buffersink_filter format_filter aformat_filter
1749                setpts_filter null_filter anull_filter"
1750 ffplay_deps="avcodec avformat swscale swresample sdl"
1751 ffplay_select="buffersink_filter rdft"
1752 ffprobe_deps="avcodec avformat"
1753 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1754 ffserver_extralibs='$ldl'
1755
1756 doc_deps="texi2html"
1757
1758 # tests
1759
1760 test_deps(){
1761     suf1=$1
1762     suf2=$2
1763     shift 2
1764     for v; do
1765         dep=${v%=*}
1766         tests=${v#*=}
1767         for name in ${tests}; do
1768             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1769         done
1770     done
1771 }
1772
1773 mxf_d10_test_deps="avfilter"
1774 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1775
1776 test_deps _muxer _demuxer                                               \
1777     aiff                                                                \
1778     pcm_alaw=alaw                                                       \
1779     asf                                                                 \
1780     au                                                                  \
1781     avi                                                                 \
1782     dv=dv_fmt                                                           \
1783     ffm                                                                 \
1784     flv=flv_fmt                                                         \
1785     gxf                                                                 \
1786     matroska=mkv                                                        \
1787     mmf                                                                 \
1788     mov="mov ismv"                                                      \
1789     pcm_mulaw=mulaw                                                     \
1790     mxf="mxf mxf_d10"                                                   \
1791     nut                                                                 \
1792     ogg="ogg ogg_vp3"                                                   \
1793     rawvideo=pixfmt                                                     \
1794     rm                                                                  \
1795     swf                                                                 \
1796     mpegts=ts                                                           \
1797     voc                                                                 \
1798     wav                                                                 \
1799     yuv4mpegpipe=yuv4mpeg                                               \
1800
1801 colormatrix1_test_deps="colormatrix_filter"
1802 colormatrix2_test_deps="colormatrix_filter"
1803 flashsv2_test_deps="zlib"
1804 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1805 mpng_test_deps="zlib"
1806 pp_test_deps="mp_filter"
1807 pp2_test_deps="mp_filter"
1808 pp3_test_deps="mp_filter"
1809 pp4_test_deps="mp_filter"
1810 pp5_test_deps="mp_filter"
1811 pp6_test_deps="mp_filter"
1812 zlib_test_deps="zlib"
1813 zmbv_test_deps="zlib"
1814
1815 # default parameters
1816
1817 logfile="config.log"
1818
1819 # installation paths
1820 prefix_default="/usr/local"
1821 bindir_default='${prefix}/bin'
1822 datadir_default='${prefix}/share/ffmpeg'
1823 incdir_default='${prefix}/include'
1824 libdir_default='${prefix}/lib'
1825 mandir_default='${prefix}/share/man'
1826 shlibdir_default="$libdir_default"
1827 postproc_version_default="current"
1828
1829 # toolchain
1830 ar_default="ar"
1831 cc_default="gcc"
1832 cxx_default="g++"
1833 cc_version=\"unknown\"
1834 host_cc_default="gcc"
1835 install="install"
1836 ln_s="ln -sf"
1837 nm_default="nm"
1838 objformat="elf"
1839 pkg_config_default=pkg-config
1840 ranlib="ranlib"
1841 strip_default="strip"
1842 yasmexe_default="yasm"
1843
1844 nm_opts='-g'
1845 nogas=":"
1846
1847 # machine
1848 arch_default=$(uname -m)
1849 cpu="generic"
1850
1851 # OS
1852 target_os_default=$(tolower $(uname -s))
1853 host_os=$target_os_default
1854
1855 # alternative libpostproc version
1856 ALT_PP_VER_MAJOR=51
1857 ALT_PP_VER_MINOR=2
1858 ALT_PP_VER_MICRO=101
1859 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1860
1861 # configurable options
1862 enable $PROGRAM_LIST
1863
1864 enable avcodec
1865 enable avdevice
1866 enable avfilter
1867 enable avformat
1868 enable avutil
1869 enable postproc
1870 enable stripping
1871 enable swresample
1872 enable swscale
1873
1874 enable asm
1875 enable debug
1876 enable doc
1877 enable fastdiv
1878 enable network
1879 enable optimizations
1880 enable safe_bitstream_reader
1881 enable static
1882 enable swscale_alpha
1883
1884 # build settings
1885 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1886 FFSERVERLDFLAGS=-Wl,-E
1887 LIBPREF="lib"
1888 LIBSUF=".a"
1889 FULLNAME='$(NAME)$(BUILDSUF)'
1890 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1891 SLIBPREF="lib"
1892 SLIBSUF=".so"
1893 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1894 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1895 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1896 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1897 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1898 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1899
1900 AS_O='-o $@'
1901 CC_O='-o $@'
1902 CXX_O='-o $@'
1903
1904 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1905 host_libs='-lm'
1906
1907 target_path='$(CURDIR)'
1908
1909 # since the object filename is not given with the -MM flag, the compiler
1910 # is only able to print the basename, and we must add the path ourselves
1911 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1912 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1913
1914 # find source path
1915 if test -f configure; then
1916     source_path=.
1917 else
1918     source_path=$(cd $(dirname "$0"); pwd)
1919     echo "$source_path" | grep -q '[[:blank:]]' &&
1920         die "Out of tree builds are impossible with whitespace in source path."
1921     test -e "$source_path/config.h" &&
1922         die "Out of tree builds are impossible with config.h in source dir."
1923 fi
1924
1925 for v in "$@"; do
1926     r=${v#*=}
1927     l=${v%"$r"}
1928     r=$(sh_quote "$r")
1929     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1930 done
1931
1932 find_things(){
1933     thing=$1
1934     pattern=$2
1935     file=$source_path/$3
1936     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1937 }
1938
1939 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1940 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1941 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1942 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1943 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1944 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1945 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1946 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1947 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1948 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1949 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1950
1951 ALL_COMPONENTS="
1952     $BSF_LIST
1953     $DECODER_LIST
1954     $DEMUXER_LIST
1955     $ENCODER_LIST
1956     $FILTER_LIST
1957     $HWACCEL_LIST
1958     $INDEV_LIST
1959     $MUXER_LIST
1960     $OUTDEV_LIST
1961     $PARSER_LIST
1962     $PROTOCOL_LIST
1963 "
1964
1965 find_tests(){
1966     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1967 }
1968
1969 LAVF_FATE_TESTS=$(find_tests lavf-fate)
1970 LAVF_TESTS=$(find_tests lavf)
1971 LAVFI_TESTS=$(find_tests lavfi)
1972 SEEK_TESTS=$(find_tests seek seek_)
1973
1974 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1975
1976 for n in $COMPONENT_LIST; do
1977     v=$(toupper ${n%s})_LIST
1978     eval enable \$$v
1979     eval ${n}_if_any="\$$v"
1980 done
1981
1982 enable $ARCH_EXT_LIST $ALL_TESTS
1983
1984 die_unknown(){
1985     echo "Unknown option \"$1\"."
1986     echo "See $0 --help for available options."
1987     exit 1
1988 }
1989
1990 show_list() {
1991     suffix=_$1
1992     shift
1993     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1994     exit 0
1995 }
1996
1997 rand_list(){
1998     IFS=', '
1999     set -- $*
2000     unset IFS
2001     for thing; do
2002         comp=${thing%:*}
2003         prob=${thing#$comp}
2004         prob=${prob#:}
2005         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2006         echo "prob ${prob:-0.5}"
2007         printf '%s\n' $comp
2008     done
2009 }
2010
2011 do_random(){
2012     action=$1
2013     shift
2014     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2015     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2016 }
2017
2018 for opt do
2019     optval="${opt#*=}"
2020     case "$opt" in
2021     --extra-ldflags=*) add_ldflags $optval
2022     ;;
2023     --extra-libs=*) add_extralibs $optval
2024     ;;
2025     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2026     ;;
2027     --enable-debug=*) debuglevel="$optval"
2028     ;;
2029     --disable-everything)
2030     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2031     ;;
2032     --enable-random|--disable-random)
2033     action=${opt%%-random}
2034     do_random ${action#--} $COMPONENT_LIST
2035     ;;
2036     --enable-random=*|--disable-random=*)
2037     action=${opt%%-random=*}
2038     do_random ${action#--} $optval
2039     ;;
2040     --enable-*=*|--disable-*=*)
2041     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2042     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2043     eval list=\$$(toupper $thing)_LIST
2044     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2045     $action $(filter "$name" $list)
2046     ;;
2047     --enable-?*|--disable-?*)
2048     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2049     if is_in $option $COMPONENT_LIST; then
2050         test $action = disable && action=unset
2051         eval $action \$$(toupper ${option%s})_LIST
2052     elif is_in $option $CMDLINE_SELECT; then
2053         $action $option
2054     else
2055         die_unknown $opt
2056     fi
2057     ;;
2058     --list-*)
2059         NAME="${opt#--list-}"
2060         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2061         NAME=${NAME%s}
2062         eval show_list $NAME \$$(toupper $NAME)_LIST
2063     ;;
2064     --help|-h) show_help
2065     ;;
2066     *)
2067     optname="${opt%%=*}"
2068     optname="${optname#--}"
2069     optname=$(echo "$optname" | sed 's/-/_/g')
2070     if is_in $optname $CMDLINE_SET; then
2071         eval $optname='$optval'
2072     elif is_in $optname $CMDLINE_APPEND; then
2073         append $optname "$optval"
2074     else
2075          die_unknown $opt
2076     fi
2077     ;;
2078     esac
2079 done
2080
2081 disabled logging && logfile=/dev/null
2082
2083 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2084 set >> $logfile
2085
2086 test -n "$cross_prefix" && enable cross_compile
2087
2088 if enabled cross_compile; then
2089     test -n "$arch" && test -n "$target_os" ||
2090         die "Must specify target arch and OS when cross-compiling"
2091 fi
2092
2093 set_default arch target_os postproc_version
2094
2095 # Check if we should build alternative libpostproc version instead of current
2096 if   test "$postproc_version" = $ALT_PP_VER; then
2097   LIBPOSTPROC_VERSION=$ALT_PP_VER
2098   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2099   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2100   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2101 elif test "$postproc_version" != current; then
2102   die "Invalid argument to --postproc-version. See --help output."
2103 fi
2104
2105 ar_default="${cross_prefix}${ar_default}"
2106 cc_default="${cross_prefix}${cc_default}"
2107 cxx_default="${cross_prefix}${cxx_default}"
2108 nm_default="${cross_prefix}${nm_default}"
2109 pkg_config_default="${cross_prefix}${pkg_config_default}"
2110 ranlib="${cross_prefix}${ranlib}"
2111 strip_default="${cross_prefix}${strip_default}"
2112
2113 sysinclude_default="${sysroot}/usr/include"
2114
2115 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2116 enabled cross_compile || host_cc_default=$cc
2117 set_default host_cc
2118
2119 if ! $pkg_config --version >/dev/null 2>&1; then
2120     warn "$pkg_config not found, library detection may fail."
2121     pkg_config=false
2122 fi
2123
2124 exesuf() {
2125     case $1 in
2126         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2127     esac
2128 }
2129
2130 EXESUF=$(exesuf $target_os)
2131 HOSTEXESUF=$(exesuf $host_os)
2132
2133 # set temporary file name
2134 : ${TMPDIR:=$TEMPDIR}
2135 : ${TMPDIR:=$TMP}
2136 : ${TMPDIR:=/tmp}
2137
2138 if ! check_cmd mktemp -u XXXXXX; then
2139     # simple replacement for missing mktemp
2140     # NOT SAFE FOR GENERAL USE
2141     mktemp(){
2142         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2143     }
2144 fi
2145
2146 tmpfile(){
2147     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2148         (set -C; exec > $tmp) 2>/dev/null ||
2149         die "Unable to create temporary file in $TMPDIR."
2150     append TMPFILES $tmp
2151     eval $1=$tmp
2152 }
2153
2154 trap 'rm -f -- $TMPFILES' EXIT
2155
2156 tmpfile TMPASM .asm
2157 tmpfile TMPC   .c
2158 tmpfile TMPCPP .cpp
2159 tmpfile TMPE   $EXESUF
2160 tmpfile TMPH   .h
2161 tmpfile TMPO   .o
2162 tmpfile TMPS   .S
2163 tmpfile TMPSH  .sh
2164 tmpfile TMPV   .ver
2165
2166 unset -f mktemp
2167
2168 chmod +x $TMPE
2169
2170 # make sure we can execute files in $TMPDIR
2171 cat > $TMPSH 2>> $logfile <<EOF
2172 #! /bin/sh
2173 EOF
2174 chmod +x $TMPSH >> $logfile 2>&1
2175 if ! $TMPSH >> $logfile 2>&1; then
2176     cat <<EOF
2177 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2178 variable to another directory and make sure that it is not mounted noexec.
2179 EOF
2180     die "Sanity test failed."
2181 fi
2182
2183 filter_asflags=echo
2184 filter_cflags=echo
2185 filter_cppflags=echo
2186
2187 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2188     cc_type=llvm_gcc
2189     cc_version=__VERSION__
2190     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2191     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2192     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2193     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2194     speed_cflags='-O3'
2195     size_cflags='-Os'
2196 elif $cc -v 2>&1 | grep -qi ^gcc; then
2197     cc_type=gcc
2198     cc_version=__VERSION__
2199     gcc_version=$($cc --version | head -n1)
2200     gcc_basever=$($cc -dumpversion)
2201     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2202     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2203     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2204     if ! $cc -dumpversion | grep -q '^2\.'; then
2205         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2206         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2207     fi
2208     speed_cflags='-O3'
2209     size_cflags='-Os'
2210 elif $cc --version 2>/dev/null | grep -q Intel; then
2211     cc_type=icc
2212     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2213     cc_ident=$($cc --version | head -n1)
2214     icc_version=$($cc -dumpversion)
2215     CC_DEPFLAGS='-MMD'
2216     AS_DEPFLAGS='-MMD'
2217     speed_cflags='-O3'
2218     size_cflags='-Os'
2219     noopt_cflags='-O1'
2220 elif $cc -v 2>&1 | grep -q xlc; then
2221     cc_type=xlc
2222     cc_version="AV_STRINGIFY(__IBMC__)"
2223     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2224     speed_cflags='-O5'
2225     size_cflags='-O5 -qcompact'
2226 elif $cc -V 2>/dev/null | grep -q Compaq; then
2227     cc_type=ccc
2228     cc_version="AV_STRINGIFY(__DECC_VER)"
2229     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2230     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2231     debuglevel=3
2232     add_ldflags -Wl,-z,now # calls to libots crash without this
2233     speed_cflags='-fast'
2234     size_cflags='-O1'
2235 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2236     test -d "$sysroot" || die "No valid sysroot specified."
2237     cc_type=armcc
2238     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2239     cc_ident=$($cc --vsn | head -n1)
2240     armcc_conf="$PWD/armcc.conf"
2241     $cc --arm_linux_configure                 \
2242         --arm_linux_config_file="$armcc_conf" \
2243         --configure_sysroot="$sysroot"        \
2244         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2245         die "Error creating armcc configuration file."
2246     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2247     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2248     as_default="${cross_prefix}gcc"
2249     CC_DEPFLAGS='-MMD'
2250     AS_DEPFLAGS='-MMD'
2251     speed_cflags='-O3'
2252     size_cflags='-Os'
2253     filter_asflags="filter_out -W${armcc_opt}*"
2254 elif $cc -version 2>/dev/null | grep -q TMS470; then
2255     cc_type=tms470
2256     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2257     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2258     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2259     CC_O='-fr=$(@D)'
2260     as_default="${cross_prefix}gcc"
2261     ld_default="${cross_prefix}gcc"
2262     TMPO=$(basename $TMPC .c).o
2263     append TMPFILES $TMPO
2264     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2265     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2266     AS_DEPFLAGS='-MMD'
2267     speed_cflags='-O3 -mf=5'
2268     size_cflags='-O3 -mf=2'
2269     filter_cflags=tms470_flags
2270     tms470_flags(){
2271         for flag; do
2272             case $flag in
2273                 -march=*|-mcpu=*)
2274                     case "${flag#*=}" in
2275                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2276                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2277                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2278                         armv6*|arm11*)          echo -mv=6   ;;
2279                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2280                                                 echo -mv=5e  ;;
2281                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2282                     esac
2283                     ;;
2284                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2285                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2286                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2287                 -msoft-float)   echo --float_support=vfplib       ;;
2288                 -O[0-3]|-mf=*)  echo $flag                        ;;
2289                 -g)             echo -g -mn                       ;;
2290                 -pds=*)         echo $flag                        ;;
2291             esac
2292         done
2293     }
2294 elif $cc -v 2>&1 | grep -q clang; then
2295     cc_type=clang
2296     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2297         cc_version=__clang_version__ || cc_version=__VERSION__
2298     cc_ident=$($cc --version | head -n1)
2299     CC_DEPFLAGS='-MMD'
2300     AS_DEPFLAGS='-MMD'
2301     speed_cflags='-O3'
2302     size_cflags='-Os'
2303 elif $cc -V 2>&1 | grep -q Sun; then
2304     cc_type=suncc
2305     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2306     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2307     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2308     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2309     add_ldflags -xc99
2310     speed_cflags='-O5'
2311     size_cflags='-O5 -xspace'
2312     filter_cflags=suncc_flags
2313     suncc_flags(){
2314         for flag; do
2315             case $flag in
2316                 -march=*|-mcpu=*)
2317                     case "${flag#*=}" in
2318                         native)                   echo -xtarget=native       ;;
2319                         v9|niagara)               echo -xarch=sparc          ;;
2320                         ultrasparc)               echo -xarch=sparcvis       ;;
2321                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2322                         i586|pentium)             echo -xchip=pentium        ;;
2323                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2324                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2325                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2326                         pentium4*)          echo -xtarget=pentium4           ;;
2327                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2328                         *-sse3)             echo -xarch=sse3                 ;;
2329                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2330                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2331                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2332                         k8|opteron|athlon64|athlon-fx)
2333                                                   echo -xarch=sse2a          ;;
2334                         athlon*)                  echo -xarch=pentium_proa   ;;
2335                     esac
2336                     ;;
2337                 -std=c99)             echo -xc99              ;;
2338                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2339                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2340                 -W*,*)                echo $flag              ;;
2341                 -f*-*|-W*)                                    ;;
2342                 *)                    echo $flag              ;;
2343             esac
2344         done
2345     }
2346 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2347     cc_type=pathscale
2348     cc_version=__PATHSCALE__
2349     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2350     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2351     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2352     speed_cflags='-O2'
2353     size_cflags='-Os'
2354     filter_cflags='filter_out -Wdisabled-optimization'
2355 elif $cc -v 2>&1 | grep -q Open64; then
2356     cc_type=open64
2357     cc_version=__OPEN64__
2358     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2359     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2360     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2361     speed_cflags='-O2'
2362     size_cflags='-Os'
2363     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2364 elif $cc -V 2>&1 | grep -q Portland; then
2365     cc_type=pgi
2366     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2367     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2368     opt_common='-alias=ansi -Mlre -Mpre'
2369     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2370     size_cflags="-O2 -Munroll=c:1 $opt_common"
2371     noopt_cflags="-O1"
2372     filter_cflags=pgi_flags
2373     pgi_flags(){
2374         for flag; do
2375             case $flag in
2376                 -fomit-frame-pointer) echo -Mnoframe ;;
2377                 -g)                   echo -gopt ;;
2378                 *)                    echo $flag ;;
2379             esac
2380         done
2381     }
2382 fi
2383
2384 test -n "$cc_type" && enable $cc_type ||
2385     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2386
2387 : ${as_default:=$cc}
2388 : ${dep_cc_default:=$cc}
2389 : ${ld_default:=$cc}
2390 set_default ar as dep_cc ld
2391
2392 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2393 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2394 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2395
2396 add_cflags $extra_cflags
2397 add_cxxflags $extra_cxxflags
2398 add_asflags $extra_cflags
2399
2400 if test -n "$sysroot"; then
2401     case "$cc_type" in
2402         gcc|llvm_gcc|clang)
2403             add_cppflags --sysroot="$sysroot"
2404             add_ldflags --sysroot="$sysroot"
2405         ;;
2406         tms470)
2407             add_cppflags -I"$sysinclude"
2408             add_ldflags  --sysroot="$sysroot"
2409         ;;
2410     esac
2411 fi
2412
2413 if test "$cpu" = host; then
2414     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2415
2416     case "$cc_type" in
2417         gcc|llvm_gcc)
2418             check_native(){
2419                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2420                 sed -n "/cc1.*$1=/{
2421                             s/.*$1=\\([^ ]*\\).*/\\1/
2422                             p
2423                             q
2424                         }" $TMPE
2425             }
2426             cpu=$(check_native -march || check_native -mcpu)
2427         ;;
2428     esac
2429
2430     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2431 fi
2432
2433 # Deal with common $arch aliases
2434 case "$arch" in
2435     arm*|iPad*)
2436         arch="arm"
2437     ;;
2438     mips|mipsel|IP*)
2439         arch="mips"
2440     ;;
2441     mips64*)
2442         arch="mips"
2443         subarch="mips64"
2444     ;;
2445     parisc|hppa)
2446         arch="parisc"
2447     ;;
2448     parisc64|hppa64)
2449         arch="parisc"
2450         subarch="parisc64"
2451     ;;
2452     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2453         arch="ppc"
2454     ;;
2455     s390|s390x)
2456         arch="s390"
2457     ;;
2458     sh4|sh)
2459         arch="sh4"
2460     ;;
2461     sun4u|sparc64)
2462         arch="sparc"
2463         subarch="sparc64"
2464     ;;
2465     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2466         arch="x86"
2467     ;;
2468 esac
2469
2470 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2471 enable $arch
2472
2473 # Add processor-specific flags
2474 if test "$cpu" = generic; then
2475     : do nothing
2476 elif enabled ppc; then
2477
2478     case $(tolower $cpu) in
2479         601|ppc601|powerpc601)
2480             cpuflags="-mcpu=601"
2481             disable altivec
2482         ;;
2483         603*|ppc603*|powerpc603*)
2484             cpuflags="-mcpu=603"
2485             disable altivec
2486         ;;
2487         604*|ppc604*|powerpc604*)
2488             cpuflags="-mcpu=604"
2489             disable altivec
2490         ;;
2491         g3|75*|ppc75*|powerpc75*)
2492             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2493             disable altivec
2494         ;;
2495         g4|745*|ppc745*|powerpc745*)
2496             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2497         ;;
2498         74*|ppc74*|powerpc74*)
2499             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2500         ;;
2501         g5|970|ppc970|powerpc970)
2502             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2503         ;;
2504         power[3-7]*)
2505             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2506         ;;
2507         cell)
2508             cpuflags="-mcpu=cell"
2509             enable ldbrx
2510         ;;
2511         e500v2)
2512             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2513             disable altivec
2514         ;;
2515         e500)
2516             cpuflags="-mcpu=8540 -mhard-float"
2517             disable altivec
2518         ;;
2519     esac
2520
2521 elif enabled x86; then
2522
2523     case $cpu in
2524         i[345]86|pentium)
2525             cpuflags="-march=$cpu"
2526             disable mmx
2527         ;;
2528         # targets that do NOT support conditional mov (cmov)
2529         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2530             cpuflags="-march=$cpu"
2531             disable cmov
2532         ;;
2533         # targets that do support conditional mov (cmov)
2534         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2535             cpuflags="-march=$cpu"
2536             enable cmov
2537             enable fast_cmov
2538         ;;
2539         # targets that do support conditional mov but on which it's slow
2540         pentium4|pentium4m|prescott|nocona)
2541             cpuflags="-march=$cpu"
2542             enable cmov
2543             disable fast_cmov
2544         ;;
2545     esac
2546
2547 elif enabled sparc; then
2548
2549     case $cpu in
2550         niagara)
2551             cpuflags="-mcpu=$cpu"
2552             disable vis
2553         ;;
2554         sparc64)
2555             cpuflags="-mcpu=v9"
2556         ;;
2557     esac
2558
2559 elif enabled arm; then
2560
2561     case $cpu in
2562         armv*)
2563             cpuflags="-march=$cpu"
2564             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2565         ;;
2566         *)
2567             cpuflags="-mcpu=$cpu"
2568             case $cpu in
2569                 cortex-a*)                               subarch=armv7a  ;;
2570                 cortex-r*)                               subarch=armv7r  ;;
2571                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2572                 arm11*)                                  subarch=armv6   ;;
2573                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2574                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2575             esac
2576         ;;
2577     esac
2578
2579 elif enabled alpha; then
2580
2581     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2582
2583 elif enabled bfin; then
2584
2585     cpuflags="-mcpu=$cpu"
2586
2587 elif enabled mips; then
2588
2589     cpuflags="-march=$cpu"
2590
2591     case $cpu in
2592         24kc)
2593             disable mipsfpu
2594             disable mipsdspr1
2595             disable mipsdspr2
2596         ;;
2597         24kf*)
2598             disable mipsdspr1
2599             disable mipsdspr2
2600         ;;
2601         24kec|34kc|1004kc)
2602             disable mipsfpu
2603             disable mipsdspr2
2604         ;;
2605         24kef*|34kf*|1004kf*)
2606             disable mipsdspr2
2607         ;;
2608         74kc)
2609             disable mipsfpu
2610         ;;
2611     esac
2612
2613 elif enabled avr32; then
2614
2615     case $cpu in
2616         ap7[02]0[0-2])
2617             subarch="avr32_ap"
2618             cpuflags="-mpart=$cpu"
2619         ;;
2620         ap)
2621             subarch="avr32_ap"
2622             cpuflags="-march=$cpu"
2623         ;;
2624         uc3[ab]*)
2625             subarch="avr32_uc"
2626             cpuflags="-mcpu=$cpu"
2627         ;;
2628         uc)
2629             subarch="avr32_uc"
2630             cpuflags="-march=$cpu"
2631         ;;
2632     esac
2633
2634 fi
2635
2636 add_cflags $cpuflags
2637 add_asflags $cpuflags
2638
2639 # compiler sanity check
2640 check_exec <<EOF
2641 int main(void){ return 0; }
2642 EOF
2643 if test "$?" != 0; then
2644     echo "$cc is unable to create an executable file."
2645     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2646         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2647         echo "Only do this if you know what cross compiling means."
2648     fi
2649     die "C compiler test failed."
2650 fi
2651
2652 add_cppflags -D_ISOC99_SOURCE
2653 add_cxxflags -D__STDC_CONSTANT_MACROS
2654 check_cflags -std=c99
2655 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2656 #include <stdlib.h>
2657 EOF
2658 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2659 #include <stdlib.h>
2660 EOF
2661
2662 check_host_cflags -std=c99
2663 check_host_cflags -Wall
2664
2665 case "$arch" in
2666     alpha|ia64|mips|parisc|sparc)
2667         spic=$shared
2668     ;;
2669     x86)
2670         subarch="x86_32"
2671         check_cc <<EOF && subarch="x86_64"
2672         int test[(int)sizeof(char*) - 7];
2673 EOF
2674         if test "$subarch" = "x86_64"; then
2675             spic=$shared
2676         fi
2677     ;;
2678     ppc)
2679         check_cc <<EOF && subarch="ppc64"
2680         int test[(int)sizeof(char*) - 7];
2681 EOF
2682     ;;
2683 esac
2684
2685 enable $subarch
2686 enabled spic && enable pic
2687
2688 # OS specific
2689 case $target_os in
2690     haiku)
2691         prefix_default="/boot/common"
2692         network_extralibs="-lnetwork"
2693         host_libs=
2694         ;;
2695     sunos)
2696         FFSERVERLDFLAGS=""
2697         SHFLAGS='-shared -Wl,-h,$$(@F)'
2698         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2699         network_extralibs="-lsocket -lnsl"
2700         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2701         # When using suncc to build, the Solaris linker will mark
2702         # an executable with each instruction set encountered by
2703         # the Solaris assembler.  As our libraries contain their own
2704         # guards for processor-specific code, instead suppress
2705         # generation of the HWCAPS ELF section on Solaris x86 only.
2706         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2707         nm_opts='-P -g'
2708         ;;
2709     netbsd)
2710         disable symver
2711         oss_indev_extralibs="-lossaudio"
2712         oss_outdev_extralibs="-lossaudio"
2713         ;;
2714     openbsd|bitrig)
2715         # On OpenBSD 4.5. the compiler does not use PIC unless
2716         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2717         # however the generated executable will not do anything
2718         # (simply quits with exit-code 1, no crash, no output).
2719         # Thus explicitly enable PIC here.
2720         enable pic
2721         disable symver
2722         SHFLAGS='-shared'
2723         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2724         oss_indev_extralibs="-lossaudio"
2725         oss_outdev_extralibs="-lossaudio"
2726         ;;
2727     dragonfly)
2728         disable symver
2729         ;;
2730     freebsd)
2731         ;;
2732     bsd/os)
2733         add_extralibs -lpoll -lgnugetopt
2734         strip="strip -d"
2735         ;;
2736     darwin)
2737         gas="gas-preprocessor.pl $cc"
2738         enabled ppc && add_asflags -force_cpusubtype_ALL
2739         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2740         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2741         strip="${strip} -x"
2742         add_ldflags -Wl,-dynamic,-search_paths_first
2743         SLIBSUF=".dylib"
2744         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2745         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2746         FFSERVERLDFLAGS=-Wl,-bind_at_load
2747         objformat="macho"
2748         enabled x86_64 && objformat="macho64"
2749         enabled_any pic shared ||
2750             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2751         ;;
2752     mingw32*)
2753         if test $target_os = "mingw32ce"; then
2754             disable network
2755         else
2756             target_os=mingw32
2757         fi
2758         LIBTARGET=i386
2759         if enabled x86_64; then
2760             LIBTARGET=x64
2761         elif enabled arm; then
2762             LIBTARGET=arm-wince
2763         fi
2764         shlibdir_default="$bindir_default"
2765         SLIBPREF=""
2766         SLIBSUF=".dll"
2767         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2768         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2769         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2770         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2771         SLIB_INSTALL_LINKS=
2772         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2773         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2774         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'
2775         objformat="win32"
2776         enable dos_paths
2777         check_cflags -fno-common
2778         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2779                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2780                 die "ERROR: MinGW runtime version must be >= 3.15."
2781         add_cppflags -U__STRICT_ANSI__
2782         ;;
2783     cygwin*)
2784         target_os=cygwin
2785         shlibdir_default="$bindir_default"
2786         SLIBPREF="cyg"
2787         SLIBSUF=".dll"
2788         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2789         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2790         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2791         objformat="win32"
2792         enable dos_paths
2793         check_cflags -fno-common
2794         add_cppflags -U__STRICT_ANSI__
2795         ;;
2796     *-dos|freedos|opendos)
2797         network_extralibs="-lsocket"
2798         objformat="coff"
2799         enable dos_paths
2800         add_cppflags -U__STRICT_ANSI__
2801         ;;
2802     linux)
2803         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2804         enable dv1394
2805         ;;
2806     irix*)
2807         target_os=irix
2808         ranlib="echo ignoring ranlib"
2809         ;;
2810     os/2*)
2811         strip="lxlite -CS"
2812         ln_s="cp -f"
2813         objformat="aout"
2814         add_cppflags -D_GNU_SOURCE
2815         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2816         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2817         FFSERVERLDFLAGS=""
2818         LIBSUF="_s.a"
2819         SLIBPREF=""
2820         SLIBSUF=".dll"
2821         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2822         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2823         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2824           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2825           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2826           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2827           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2828           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2829         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2830           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2831         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2832         enable dos_paths
2833         enable_weak os2threads
2834         ;;
2835     gnu/kfreebsd)
2836         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2837         ;;
2838     gnu)
2839         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2840         ;;
2841     qnx)
2842         add_cppflags -D_QNX_SOURCE
2843         network_extralibs="-lsocket"
2844         ;;
2845     symbian)
2846         SLIBSUF=".dll"
2847         enable dos_paths
2848         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2849         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2850         add_ldflags -Wl,--target1-abs,--no-undefined \
2851                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2852                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2853         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2854                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2855                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2856         ;;
2857     none)
2858         ;;
2859     *)
2860         die "Unknown OS '$target_os'."
2861         ;;
2862 esac
2863
2864 esc(){
2865     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2866 }
2867
2868 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
2869
2870 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2871
2872 set_default $PATHS_LIST
2873
2874 # we need to build at least one lib type
2875 if ! enabled_any static shared; then
2876     cat <<EOF
2877 At least one library type must be built.
2878 Specify --enable-static to build the static libraries or --enable-shared to
2879 build the shared libraries as well. To only build the shared libraries specify
2880 --disable-static in addition to --enable-shared.
2881 EOF
2882     exit 1;
2883 fi
2884
2885 die_license_disabled() {
2886     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2887 }
2888
2889 die_license_disabled_gpl() {
2890     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
2891 }
2892
2893 die_license_disabled gpl libcdio
2894 die_license_disabled gpl libutvideo
2895 die_license_disabled gpl libx264
2896 die_license_disabled gpl libxavs
2897 die_license_disabled gpl libxvid
2898 die_license_disabled gpl x11grab
2899
2900 die_license_disabled nonfree libaacplus
2901 die_license_disabled nonfree libfaac
2902 enabled gpl && die_license_disabled_gpl nonfree openssl
2903
2904 die_license_disabled version3 libopencore_amrnb
2905 die_license_disabled version3 libopencore_amrwb
2906 die_license_disabled version3 libvo_aacenc
2907 die_license_disabled version3 libvo_amrwbenc
2908
2909 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2910
2911 disabled optimizations || check_cflags -fomit-frame-pointer
2912
2913 enable_pic() {
2914     enable pic
2915     add_cppflags -DPIC
2916     add_cflags   -fPIC
2917     add_asflags  -fPIC
2918 }
2919
2920 enabled pic && enable_pic
2921
2922 check_cc <<EOF || die "Symbol mangling check failed."
2923 int ff_extern;
2924 EOF
2925 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2926 extern_prefix=${sym%%ff_extern*}
2927
2928 check_cc <<EOF && enable inline_asm
2929 void foo(void) { __asm__ volatile ("" ::); }
2930 EOF
2931
2932 _restrict=
2933 for restrict_keyword in restrict __restrict__ __restrict; do
2934     check_cc <<EOF && _restrict=$restrict_keyword && break
2935 void foo(char * $restrict_keyword p);
2936 EOF
2937 done
2938
2939 check_cc <<EOF && enable attribute_packed
2940 struct { int x; } __attribute__((packed)) x;
2941 EOF
2942
2943 check_cc <<EOF && enable attribute_may_alias
2944 union { int x; } __attribute__((may_alias)) x;
2945 EOF
2946
2947 check_cc <<EOF || die "endian test failed"
2948 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2949 EOF
2950 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2951
2952 if enabled alpha; then
2953
2954     check_cflags -mieee
2955
2956 elif enabled arm; then
2957
2958     enabled thumb && check_cflags -mthumb || check_cflags -marm
2959     nogas=die
2960
2961     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2962         enable vfp_args
2963     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2964         case "${cross_prefix:-$cc}" in
2965             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2966             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2967 __asm__ (".eabi_attribute 28, 1");
2968 int main(void) { return 0; }
2969 EOF
2970         esac
2971         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2972     fi
2973
2974     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2975     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2976     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2977     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2978     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2979     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2980
2981     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2982
2983     enabled_all armv6t2 shared !pic && enable_pic
2984
2985 elif enabled mips; then
2986
2987     check_asm loongson '"dmult.g $1, $2, $3"'
2988     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2989     enabled mips32r2  && add_cflags "-mips32r2" &&
2990      check_asm mips32r2  '"rotr $t0, $t1, 1"'
2991     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
2992      check_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
2993     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
2994      check_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
2995     enabled mipsfpu   && add_cflags "-mhard-float" &&
2996      check_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
2997
2998
2999 elif enabled ppc; then
3000
3001     enable local_aligned_8 local_aligned_16
3002
3003     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3004     check_asm ibm_asm   '"add 0, 0, 0"'
3005     check_asm ppc4xx    '"maclhw r10, r11, r12"'
3006     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3007
3008     # AltiVec flags: The FSF version of GCC differs from the Apple version
3009     if enabled altivec; then
3010         nogas=warn
3011         check_cflags -maltivec -mabi=altivec &&
3012         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3013         check_cflags -faltivec
3014
3015         # check if our compiler supports Motorola AltiVec C API
3016         check_cc <<EOF || disable altivec
3017 $inc_altivec_h
3018 int main(void) {
3019     vector signed int v1, v2, v3;
3020     v1 = vec_add(v2,v3);
3021     return 0;
3022 }
3023 EOF
3024
3025         # check if our compiler supports braces for vector declarations
3026         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3027 $inc_altivec_h
3028 int main (void) { (vector int) {1}; return 0; }
3029 EOF
3030     fi
3031
3032 elif enabled sparc; then
3033
3034     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3035         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3036
3037 elif enabled x86; then
3038
3039     enable local_aligned_8 local_aligned_16
3040
3041     # check whether EBP is available on x86
3042     # As 'i' is stored on the stack, this program will crash
3043     # if the base pointer is used to access it because the
3044     # base pointer is cleared in the inline assembly code.
3045     check_exec_crash <<EOF && enable ebp_available
3046     volatile int i=0;
3047     __asm__ volatile (
3048         "xorl %%ebp, %%ebp"
3049     ::: "%ebp");
3050     return i;
3051 EOF
3052
3053     # check whether EBX is available on x86
3054     check_asm ebx_available '""::"b"(0)' &&
3055         check_asm ebx_available '"":::"%ebx"'
3056
3057     # check whether xmm clobbers are supported
3058     check_asm xmm_clobbers '"":::"%xmm0"'
3059
3060     # check whether binutils is new enough to compile SSSE3/MMX2
3061     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
3062     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
3063
3064     if ! disabled_any asm mmx yasm; then
3065         if check_cmd $yasmexe --version; then
3066             enabled x86_64 && yasm_extra="-m amd64"
3067             yasm_debug="-g dwarf2"
3068         elif check_cmd nasm -v; then
3069             yasmexe=nasm
3070             yasm_debug="-g -F dwarf"
3071             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3072         fi
3073
3074         YASMFLAGS="-f $objformat $yasm_extra"
3075         enabled pic               && append YASMFLAGS "-DPIC"
3076         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3077         case "$objformat" in
3078             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3079         esac
3080
3081         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3082             die "yasm not found, use --disable-yasm for a crippled build"
3083         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3084     fi
3085
3086     case "$cpu" in
3087         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3088             disable fast_clz
3089         ;;
3090     esac
3091
3092 fi
3093
3094 if enabled asm; then
3095     as=${gas:=$as}
3096     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3097         $nogas "GNU assembler not found, install gas-preprocessor"
3098 fi
3099
3100 check_ldflags -Wl,--as-needed
3101
3102 if check_func dlopen; then
3103     ldl=
3104 elif check_func dlopen -ldl; then
3105     ldl=-ldl
3106 fi
3107
3108 if enabled network; then
3109     check_type "sys/types.h sys/socket.h" socklen_t
3110     check_type netdb.h "struct addrinfo"
3111     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3112     check_type netinet/in.h "struct sockaddr_in6"
3113     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3114     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3115     check_header netinet/sctp.h
3116     # Prefer arpa/inet.h over winsock2
3117     if check_header arpa/inet.h ; then
3118         check_func closesocket
3119     elif check_header winsock2.h ; then
3120         check_func_headers winsock2.h closesocket -lws2 && \
3121             network_extralibs="-lws2" || \
3122         { check_func_headers winsock2.h closesocket -lws2_32 && \
3123             network_extralibs="-lws2_32"; }
3124         check_type ws2tcpip.h socklen_t
3125         check_type ws2tcpip.h "struct addrinfo"
3126         check_type ws2tcpip.h "struct ipv6_mreq"
3127         check_type ws2tcpip.h "struct sockaddr_in6"
3128         check_type ws2tcpip.h "struct sockaddr_storage"
3129         check_struct winsock2.h "struct sockaddr" sa_len
3130     else
3131         disable network
3132     fi
3133 fi
3134
3135 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3136 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3137
3138 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3139 check_func  fcntl
3140 check_func  fork
3141 check_func  getaddrinfo $network_extralibs
3142 check_func  gethrtime
3143 check_func  getrusage
3144 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3145 check_func  inet_aton $network_extralibs
3146 check_func  isatty
3147 check_func  localtime_r
3148 check_func  ${malloc_prefix}memalign            && enable memalign
3149 check_func  mkstemp
3150 check_func  mmap
3151 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3152 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3153 check_func  setrlimit
3154 check_func  strerror_r
3155 check_func  strptime
3156 check_func  sched_getaffinity
3157 check_func  sysconf
3158 check_func  sysctl
3159 check_func_headers conio.h kbhit
3160 check_func_headers windows.h PeekNamedPipe
3161 check_func_headers io.h setmode
3162 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3163 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3164 check_func_headers windows.h GetProcessAffinityMask
3165 check_func_headers windows.h GetProcessTimes
3166 check_func_headers windows.h MapViewOfFile
3167 check_func_headers windows.h VirtualAlloc
3168 check_func_headers glob.h glob
3169
3170 check_header dlfcn.h
3171 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3172 check_header libcrystalhd/libcrystalhd_if.h
3173 check_header malloc.h
3174 check_header poll.h
3175 check_header sys/mman.h
3176 check_header sys/param.h
3177 check_header sys/resource.h
3178 check_header sys/select.h
3179 check_header termios.h
3180 check_header vdpau/vdpau.h
3181 check_header vdpau/vdpau_x11.h
3182 check_header X11/extensions/XvMClib.h
3183 check_header asm/types.h
3184
3185 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3186 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3187
3188 # check for VDA header
3189 if ! disabled vda; then
3190     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3191         enable vda
3192         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3193     fi
3194 fi
3195
3196 if ! disabled w32threads && ! enabled pthreads; then
3197     check_func _beginthreadex && enable w32threads
3198 fi
3199
3200 # check for some common methods of building with pthread support
3201 # do this before the optional library checks as some of them require pthreads
3202 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3203     enable pthreads
3204     if check_func pthread_create; then
3205         :
3206     elif check_func pthread_create -pthread; then
3207         add_cflags -pthread
3208         add_extralibs -pthread
3209     elif check_func pthread_create -pthreads; then
3210         add_cflags -pthreads
3211         add_extralibs -pthreads
3212     elif check_func pthread_create -lpthreadGC2; then
3213         add_extralibs -lpthreadGC2
3214     elif ! check_lib pthread.h pthread_create -lpthread; then
3215         disable pthreads
3216     fi
3217 fi
3218
3219 for thread in $THREADS_LIST; do
3220     if enabled $thread; then
3221         test -n "$thread_type" &&
3222             die "ERROR: Only one thread type must be selected." ||
3223             thread_type="$thread"
3224     fi
3225 done
3226
3227 if enabled pthreads; then
3228   check_func pthread_cancel
3229 fi
3230
3231 check_lib math.h sin -lm && LIBM="-lm"
3232 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3233 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3234
3235 check_mathfunc cbrtf
3236 check_mathfunc exp2
3237 check_mathfunc exp2f
3238 check_mathfunc llrint
3239 check_mathfunc llrintf
3240 check_mathfunc log2
3241 check_mathfunc log2f
3242 check_mathfunc lrint
3243 check_mathfunc lrintf
3244 check_mathfunc round
3245 check_mathfunc roundf
3246 check_mathfunc trunc
3247 check_mathfunc truncf
3248
3249 # these are off by default, so fail if requested and not available
3250 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3251 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3252 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3253 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3254 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3255 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3256 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3257 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3258                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3259                         die "ERROR: libcelt version must be >= 0.11.0."; }
3260 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3261 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3262 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3263 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3264 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3265 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3266 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3267 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3268 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3269 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3270 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3271 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3272 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3273 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3274 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3275 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3276     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3277     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3278 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3279 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3280 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3281 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3282 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3283 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3284 enabled libvpx     && {
3285     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3286                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3287     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3288                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3289 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3290                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3291                         die "ERROR: libx264 version must be >= 0.118."; }
3292 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3293 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3294 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3295                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3296                         die "ERROR: openal not found"; } &&
3297                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3298                         die "ERROR: openal version must be 1.1 or compatible"; }
3299 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3300                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3301                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3302                         die "ERROR: openssl not found"; }
3303
3304 # libdc1394 check
3305 if enabled libdc1394; then
3306     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3307         enable libdc1394_2; } ||
3308     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3309         enable libdc1394_1; } ||
3310     die "ERROR: No version of libdc1394 found "
3311 fi
3312
3313 SDL_CONFIG="${cross_prefix}sdl-config"
3314 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3315     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3316     enable sdl &&
3317     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3318 else
3319   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3320     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3321     sdl_libs=$("${SDL_CONFIG}" --libs)
3322     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3323     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3324     enable sdl &&
3325     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3326   fi
3327 fi
3328 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3329
3330 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3331 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3332
3333 check_header linux/fb.h
3334 check_header linux/videodev.h
3335 check_header linux/videodev2.h
3336 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3337
3338 check_header sys/videoio.h
3339
3340 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3341 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3342 # w32api 3.12 had it defined wrong
3343 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3344
3345 check_type "dshow.h" IBaseFilter
3346
3347 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3348 { check_header dev/bktr/ioctl_meteor.h &&
3349   check_header dev/bktr/ioctl_bt848.h; } ||
3350 { check_header machine/ioctl_meteor.h &&
3351   check_header machine/ioctl_bt848.h; } ||
3352 { check_header dev/video/meteor/ioctl_meteor.h &&
3353   check_header dev/video/bktr/ioctl_bt848.h; } ||
3354 check_header dev/ic/bt8xx.h
3355
3356 check_header sndio.h
3357 if check_struct sys/soundcard.h audio_buf_info bytes; then
3358     enable_safe sys/soundcard.h
3359 else
3360     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3361     #include <sys/soundcard.h>
3362     audio_buf_info abc;
3363 EOF
3364 fi
3365 check_header soundcard.h
3366
3367 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3368
3369 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3370     check_func jack_port_get_latency_range -ljack
3371
3372 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3373
3374 enabled libcdio &&
3375     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3376
3377 enabled x11grab                                           &&
3378 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3379 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3380 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3381
3382 if ! disabled vaapi; then
3383     check_lib va/va.h vaInitialize -lva && {
3384         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3385         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3386     } || disable vaapi
3387 fi
3388
3389 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3390 check_cpp_condition \
3391     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3392     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3393       disable vdpau; }
3394 fi
3395
3396 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3397 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3398 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"
3399
3400 # add some useful compiler flags if supported
3401 check_cflags -Wdeclaration-after-statement
3402 check_cflags -Wall
3403 check_cflags -Wno-parentheses
3404 check_cflags -Wno-switch
3405 check_cflags -Wno-format-zero-length
3406 check_cflags -Wdisabled-optimization
3407 check_cflags -Wpointer-arith
3408 check_cflags -Wredundant-decls
3409 check_cflags -Wno-pointer-sign
3410 check_cflags -Wwrite-strings
3411 check_cflags -Wtype-limits
3412 check_cflags -Wundef
3413 check_cflags -Wmissing-prototypes
3414 check_cflags -Wno-pointer-to-int-cast
3415 check_cflags -Wstrict-prototypes
3416 enabled extra_warnings && check_cflags -Winline
3417
3418 # add some linker flags
3419 check_ldflags -Wl,--warn-common
3420 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3421 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3422
3423 enabled xmm_clobber_test &&                             \
3424     check_ldflags -Wl,--wrap,avcodec_open2              \
3425                   -Wl,--wrap,avcodec_decode_audio4      \
3426                   -Wl,--wrap,avcodec_decode_video2      \
3427                   -Wl,--wrap,avcodec_decode_subtitle2   \
3428                   -Wl,--wrap,avcodec_encode_audio2      \
3429                   -Wl,--wrap,avcodec_encode_video       \
3430                   -Wl,--wrap,avcodec_encode_subtitle    \
3431                   -Wl,--wrap,sws_scale ||               \
3432     disable xmm_clobber_test
3433
3434 echo "X{};" > $TMPV
3435 if test_ldflags -Wl,--version-script,$TMPV; then
3436     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3437     check_cc <<EOF && enable symver_asm_label
3438 void ff_foo(void) __asm__ ("av_foo@VERSION");
3439 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3440 EOF
3441     check_cc <<EOF && enable symver_gnu_asm
3442 __asm__(".symver ff_foo,av_foo@VERSION");
3443 void ff_foo(void) {}
3444 EOF
3445 fi
3446
3447 if [ -n "$optflags" ]; then
3448     add_cflags $optflags
3449 elif enabled small; then
3450     add_cflags $size_cflags
3451 elif enabled optimizations; then
3452     add_cflags $speed_cflags
3453 else
3454     add_cflags $noopt_cflags
3455 fi
3456 check_cflags -fno-math-errno
3457 check_cflags -fno-signed-zeros
3458 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3459 int x;
3460 EOF
3461
3462
3463 if enabled icc; then
3464     # Just warnings, no remarks
3465     check_cflags -w1
3466     # -wd: Disable following warnings
3467     # 144, 167, 556: -Wno-pointer-sign
3468     # 1292: attribute "foo" ignored
3469     # 1419: external declaration in primary source file
3470     # 10006: ignoring unknown option -fno-signed-zeros
3471     # 10148: ignoring unknown option -Wno-parentheses
3472     # 10156: ignoring option '-W'; no argument required
3473     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3474     # 11030: Warning unknown option --as-needed
3475     # 10156: ignoring option '-export'; no argument required
3476     check_ldflags -wd10156,11030
3477     # Allow to compile with optimizations
3478     check_ldflags -march=$cpu
3479     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3480     enable ebp_available
3481     if enabled x86_32; then
3482         test ${icc_version%%.*} -ge 11 && \
3483             check_cflags -falign-stack=maintain-16-byte || \
3484             disable aligned_stack
3485     fi
3486 elif enabled ccc; then
3487     # disable some annoying warnings
3488     add_cflags -msg_disable cvtu32to64
3489     add_cflags -msg_disable embedcomment
3490     add_cflags -msg_disable needconstext
3491     add_cflags -msg_disable nomainieee
3492     add_cflags -msg_disable ptrmismatch1
3493     add_cflags -msg_disable unreachcode
3494 elif enabled gcc; then
3495     check_cflags -fno-tree-vectorize
3496     check_cflags -Werror=implicit-function-declaration
3497     check_cflags -Werror=missing-prototypes
3498 elif enabled llvm_gcc; then
3499     check_cflags -mllvm -stack-alignment=16
3500 elif enabled clang; then
3501     check_cflags -mllvm -stack-alignment=16
3502     check_cflags -Qunused-arguments
3503 elif enabled armcc; then
3504     # 2523: use of inline assembler is deprecated
3505     add_cflags -W${armcc_opt},--diag_suppress=2523
3506     add_cflags -W${armcc_opt},--diag_suppress=1207
3507     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3508     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3509     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3510     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3511 elif enabled tms470; then
3512     add_cflags -pds=824 -pds=837
3513 elif enabled pathscale; then
3514     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3515 fi
3516
3517 enabled_any $THREADS_LIST      && enable threads
3518
3519 check_deps $CONFIG_LIST       \
3520            $CONFIG_EXTRA      \
3521            $HAVE_LIST         \
3522            $ALL_COMPONENTS    \
3523            $ALL_TESTS         \
3524
3525 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3526
3527 if test $target_os = "haiku"; then
3528     disable memalign
3529     disable posix_memalign
3530 fi
3531
3532 ! enabled_any memalign posix_memalign aligned_malloc &&
3533     enabled_any $need_memalign && enable memalign_hack
3534
3535 # add_dep lib dep
3536 # -> enable ${lib}_deps_${dep}
3537 # -> add $dep to ${lib}_deps only once
3538 add_dep() {
3539     lib=$1
3540     dep=$2
3541     enabled "${lib}_deps_${dep}" && return 0
3542     enable  "${lib}_deps_${dep}"
3543     prepend "${lib}_deps" $dep
3544 }
3545
3546 # merge deps lib components
3547 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3548 merge_deps() {
3549     lib=$1
3550     shift
3551     for comp in $*; do
3552         enabled $comp || continue
3553         eval "dep=\"\$${comp}_deps\""
3554         for d in $dep; do
3555             add_dep $lib $d
3556         done
3557     done
3558 }
3559
3560 merge_deps libavfilter $FILTER_LIST
3561
3562 echo "install prefix            $prefix"
3563 echo "source path               $source_path"
3564 echo "C compiler                $cc"
3565 echo "ARCH                      $arch ($cpu)"
3566 if test "$build_suffix" != ""; then
3567     echo "build suffix              $build_suffix"
3568 fi
3569 if test "$progs_suffix" != ""; then
3570     echo "progs suffix              $progs_suffix"
3571 fi
3572 if test "$extra_version" != ""; then
3573     echo "version string suffix     $extra_version"
3574 fi
3575 echo "big-endian                ${bigendian-no}"
3576 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3577 if enabled x86; then
3578     echo "${yasmexe}                      ${yasm-no}"
3579     echo "MMX enabled               ${mmx-no}"
3580     echo "MMX2 enabled              ${mmx2-no}"
3581     echo "3DNow! enabled            ${amd3dnow-no}"
3582     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3583     echo "SSE enabled               ${sse-no}"
3584     echo "SSSE3 enabled             ${ssse3-no}"
3585     echo "AVX enabled               ${avx-no}"
3586     echo "CMOV enabled              ${cmov-no}"
3587     echo "CMOV is fast              ${fast_cmov-no}"
3588     echo "EBX available             ${ebx_available-no}"
3589     echo "EBP available             ${ebp_available-no}"
3590 fi
3591 if enabled arm; then
3592     echo "ARMv5TE enabled           ${armv5te-no}"
3593     echo "ARMv6 enabled             ${armv6-no}"
3594     echo "ARMv6T2 enabled           ${armv6t2-no}"
3595     echo "ARM VFP enabled           ${armvfp-no}"
3596     echo "NEON enabled              ${neon-no}"
3597 fi
3598 if enabled mips; then
3599     echo "MMI enabled               ${mmi-no}"
3600     echo "MIPS FPU enabled          ${mipsfpu-no}"
3601     echo "MIPS32R2 enabled          ${mips32r2-no}"
3602     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3603     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3604 fi
3605 if enabled ppc; then
3606     echo "AltiVec enabled           ${altivec-no}"
3607     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3608     echo "dcbzl available           ${dcbzl-no}"
3609 fi
3610 if enabled sparc; then
3611     echo "VIS enabled               ${vis-no}"
3612 fi
3613 echo "debug symbols             ${debug-no}"
3614 echo "strip symbols             ${stripping-no}"
3615 echo "optimize for size         ${small-no}"
3616 echo "optimizations             ${optimizations-no}"
3617 echo "static                    ${static-no}"
3618 echo "shared                    ${shared-no}"
3619 echo "postprocessing support    ${postproc-no}"
3620 echo "new filter support        ${avfilter-no}"
3621 echo "network support           ${network-no}"
3622 echo "threading support         ${thread_type-no}"
3623 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3624 echo "SDL support               ${sdl-no}"
3625 echo "libdxva2 enabled          ${dxva2-no}"
3626 echo "libva enabled             ${vaapi-no}"
3627 echo "libvdpau enabled          ${vdpau-no}"
3628 echo "AVISynth enabled          ${avisynth-no}"
3629 echo "frei0r enabled            ${frei0r-no}"
3630 echo "gnutls enabled            ${gnutls-no}"
3631 echo "libaacplus enabled        ${libaacplus-no}"
3632 echo "libass enabled            ${libass-no}"
3633 echo "libcdio support           ${libcdio-no}"
3634 echo "libcelt enabled           ${libcelt-no}"
3635 echo "libdc1394 support         ${libdc1394-no}"
3636 echo "libfaac enabled           ${libfaac-no}"
3637 echo "libgsm enabled            ${libgsm-no}"
3638 echo "libilbc enabled           ${libilbc-no}"
3639 echo "libmodplug enabled        ${libmodplug-no}"
3640 echo "libmp3lame enabled        ${libmp3lame-no}"
3641 echo "libnut enabled            ${libnut-no}"
3642 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3643 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3644 echo "libopencv support         ${libopencv-no}"
3645 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3646 echo "libpulse enabled          ${libpulse-no}"
3647 echo "librtmp enabled           ${librtmp-no}"
3648 echo "libschroedinger enabled   ${libschroedinger-no}"
3649 echo "libspeex enabled          ${libspeex-no}"
3650 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3651 echo "libtheora enabled         ${libtheora-no}"
3652 echo "libutvideo enabled        ${libutvideo-no}"
3653 echo "libv4l2 enabled           ${libv4l2-no}"
3654 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3655 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3656 echo "libvorbis enabled         ${libvorbis-no}"
3657 echo "libvpx enabled            ${libvpx-no}"
3658 echo "libx264 enabled           ${libx264-no}"
3659 echo "libxavs enabled           ${libxavs-no}"
3660 echo "libxvid enabled           ${libxvid-no}"
3661 echo "openal enabled            ${openal-no}"
3662 echo "openssl enabled           ${openssl-no}"
3663 echo "zlib enabled              ${zlib-no}"
3664 echo "bzlib enabled             ${bzlib-no}"
3665 test -n "$random_seed" &&
3666     echo "random seed               ${random_seed}"
3667 echo
3668
3669 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3670     echo "Enabled ${type}s:"
3671     eval list=\$$(toupper $type)_LIST
3672     print_enabled '_*' $list | sort | pr -r -3 -t
3673     echo
3674 done
3675
3676 license="LGPL version 2.1 or later"
3677 if enabled nonfree; then
3678     license="nonfree and unredistributable"
3679 elif enabled gplv3; then
3680     license="GPL version 3 or later"
3681 elif enabled lgplv3; then
3682     license="LGPL version 3 or later"
3683 elif enabled gpl; then
3684     license="GPL version 2 or later"
3685 fi
3686
3687 echo "License: $license"
3688
3689 echo "Creating config.mak and config.h..."
3690
3691 test -e Makefile || $ln_s "$source_path/Makefile" .
3692
3693 enabled stripping || strip="echo skipping strip"
3694
3695 config_files="$TMPH config.mak"
3696
3697 cat > config.mak <<EOF
3698 # Automatically generated by configure - do not modify!
3699 ifndef FFMPEG_CONFIG_MAK
3700 FFMPEG_CONFIG_MAK=1
3701 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3702 prefix=$prefix
3703 LIBDIR=\$(DESTDIR)$libdir
3704 SHLIBDIR=\$(DESTDIR)$shlibdir
3705 INCDIR=\$(DESTDIR)$incdir
3706 BINDIR=\$(DESTDIR)$bindir
3707 DATADIR=\$(DESTDIR)$datadir
3708 MANDIR=\$(DESTDIR)$mandir
3709 SRC_PATH=$source_path
3710 ifndef MAIN_MAKEFILE
3711 SRC_PATH:=\$(SRC_PATH:.%=..%)
3712 endif
3713 CC_IDENT=$cc_ident
3714 ARCH=$arch
3715 CC=$cc
3716 CXX=$cxx
3717 AS=$as
3718 LD=$ld
3719 DEPCC=$dep_cc
3720 YASM=$yasmexe
3721 YASMDEP=$yasmexe
3722 AR=$ar
3723 RANLIB=$ranlib
3724 CP=cp -p
3725 LN_S=$ln_s
3726 STRIP=$strip
3727 CPPFLAGS=$CPPFLAGS
3728 CFLAGS=$CFLAGS
3729 CXXFLAGS=$CXXFLAGS
3730 ASFLAGS=$ASFLAGS
3731 AS_O=$CC_O
3732 CC_O=$CC_O
3733 CXX_O=$CXX_O
3734 LDFLAGS=$LDFLAGS
3735 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3736 SHFLAGS=$SHFLAGS
3737 YASMFLAGS=$YASMFLAGS
3738 BUILDSUF=$build_suffix
3739 PROGSSUF=$progs_suffix
3740 FULLNAME=$FULLNAME
3741 LIBPREF=$LIBPREF
3742 LIBSUF=$LIBSUF
3743 LIBNAME=$LIBNAME
3744 SLIBPREF=$SLIBPREF
3745 SLIBSUF=$SLIBSUF
3746 EXESUF=$EXESUF
3747 EXTRA_VERSION=$extra_version
3748 DEPFLAGS=$DEPFLAGS
3749 CCDEP=$CCDEP
3750 CXXDEP=$CXXDEP
3751 ASDEP=$ASDEP
3752 CC_DEPFLAGS=$CC_DEPFLAGS
3753 AS_DEPFLAGS=$AS_DEPFLAGS
3754 HOSTCC=$host_cc
3755 HOSTCFLAGS=$host_cflags
3756 HOSTEXESUF=$HOSTEXESUF
3757 HOSTLDFLAGS=$host_ldflags
3758 HOSTLIBS=$host_libs
3759 TARGET_EXEC=$target_exec
3760 TARGET_PATH=$target_path
3761 SDL_LIBS=$sdl_libs
3762 SDL_CFLAGS=$sdl_cflags
3763 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3764 EXTRALIBS=$extralibs
3765 INSTALL=$install
3766 LIBTARGET=${LIBTARGET}
3767 SLIBNAME=${SLIBNAME}
3768 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3769 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3770 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3771 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3772 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3773 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3774 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3775 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3776 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3777 NOREDZONE_FLAGS=$noredzone_flags
3778 EOF
3779
3780 get_version(){
3781     name=$1
3782     file=$source_path/$2
3783 # This condition will be removed when we stop supporting old libpostproc versions
3784 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3785     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3786     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3787 fi
3788     lcname=$(tolower $name)
3789     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3790     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3791 }
3792
3793 get_version LIBAVCODEC  libavcodec/version.h
3794 get_version LIBAVDEVICE libavdevice/avdevice.h
3795 get_version LIBAVFILTER libavfilter/version.h
3796 get_version LIBAVFORMAT libavformat/version.h
3797 get_version LIBAVRESAMPLE libavresample/version.h
3798 get_version LIBAVUTIL   libavutil/avutil.h
3799 get_version LIBPOSTPROC libpostproc/postprocess.h
3800 get_version LIBSWRESAMPLE libswresample/swresample.h
3801 get_version LIBSWSCALE  libswscale/swscale.h
3802
3803 cat > $TMPH <<EOF
3804 /* Automatically generated by configure - do not modify! */
3805 #ifndef FFMPEG_CONFIG_H
3806 #define FFMPEG_CONFIG_H
3807 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3808 #define FFMPEG_LICENSE "$(c_escape $license)"
3809 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3810 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3811 #define CC_TYPE "$cc_type"
3812 #define CC_VERSION $cc_version
3813 #define av_restrict $_restrict
3814 #define EXTERN_PREFIX "${extern_prefix}"
3815 #define EXTERN_ASM ${extern_prefix}
3816 #define SLIBSUF "$SLIBSUF"
3817 EOF
3818
3819 test -n "$assert_level" &&
3820     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
3821
3822 test -n "$malloc_prefix" &&
3823     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3824
3825 if enabled small || disabled optimizations; then
3826     echo "#undef  av_always_inline"  >> $TMPH
3827     if enabled small; then
3828         echo "#define av_always_inline inline"  >> $TMPH
3829     else
3830         echo "#define av_always_inline av_unused"  >> $TMPH
3831     fi
3832 fi
3833
3834 if enabled yasm; then
3835     append config_files $TMPASM
3836     printf '' >$TMPASM
3837 fi
3838
3839 print_config ARCH_   "$config_files" $ARCH_LIST
3840 print_config HAVE_   "$config_files" $HAVE_LIST
3841 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3842                                      $CONFIG_EXTRA      \
3843                                      $ALL_COMPONENTS    \
3844
3845 cat >>config.mak <<EOF
3846 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3847 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3848 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3849 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3850 EOF
3851
3852 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3853 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3854
3855 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3856 cp_if_changed $TMPH config.h
3857 touch .config
3858
3859 enabled yasm && cp_if_changed $TMPASM config.asm
3860
3861 cat > $TMPH <<EOF
3862 /* Generated by ffconf */
3863 #ifndef AVUTIL_AVCONFIG_H
3864 #define AVUTIL_AVCONFIG_H
3865 EOF
3866
3867 test "$postproc_version" != current && cat >> $TMPH <<EOF
3868 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3869 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3870 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3871 EOF
3872
3873 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3874
3875 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3876
3877 cp_if_changed $TMPH libavutil/avconfig.h
3878
3879 test -n "$WARNINGS" && printf "\n$WARNINGS"
3880
3881 # build pkg-config files
3882
3883 pkgconfig_generate(){
3884 name=$1
3885 shortname=${name#lib}${build_suffix}
3886 comment=$2
3887 version=$3
3888 libs=$4
3889 requires=$5
3890 enabled ${name#lib} || return 0
3891 mkdir -p $name
3892 cat <<EOF > $name/$name.pc
3893 prefix=$prefix
3894 exec_prefix=\${prefix}
3895 libdir=$libdir
3896 includedir=$incdir
3897
3898 Name: $name
3899 Description: $comment
3900 Version: $version
3901 Requires: $(enabled shared || echo $requires)
3902 Requires.private: $(enabled shared && echo $requires)
3903 Conflicts:
3904 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3905 Libs.private: $(enabled shared && echo $libs)
3906 Cflags: -I\${includedir}
3907 EOF
3908 cat <<EOF > $name/$name-uninstalled.pc
3909 prefix=
3910 exec_prefix=
3911 libdir=\${pcfiledir}
3912 includedir=${source_path}
3913
3914 Name: $name
3915 Description: $comment
3916 Version: $version
3917 Requires: $requires
3918 Conflicts:
3919 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3920 Cflags: -I\${includedir}
3921 EOF
3922 }
3923
3924 libavfilter_pc_deps=""
3925 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
3926 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
3927 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
3928 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
3929 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
3930 libavfilter_pc_deps=${libavfilter_pc_deps%, }
3931
3932 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
3933 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
3934
3935 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3936 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3937 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3938 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
3939 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
3940 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3941 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
3942 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
3943 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"