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     GetSystemTimeAsFileTime
1210     getrusage
1211     gettimeofday
1212     glob
1213     gnu_as
1214     ibm_asm
1215     inet_aton
1216     inline_asm
1217     isatty
1218     jack_port_get_latency_range
1219     kbhit
1220     ldbrx
1221     libdc1394_1
1222     libdc1394_2
1223     llrint
1224     llrintf
1225     local_aligned_16
1226     local_aligned_8
1227     localtime_r
1228     log2
1229     log2f
1230     loongson
1231     lrint
1232     lrintf
1233     lzo1x_999_compress
1234     machine_ioctl_bt848_h
1235     machine_ioctl_meteor_h
1236     makeinfo
1237     malloc_h
1238     MapViewOfFile
1239     memalign
1240     mkstemp
1241     mmap
1242     nanosleep
1243     netinet_sctp_h
1244     PeekNamedPipe
1245     poll_h
1246     posix_memalign
1247     pthread_cancel
1248     round
1249     roundf
1250     sched_getaffinity
1251     sdl
1252     sdl_video_size
1253     setmode
1254     setrlimit
1255     Sleep
1256     sndio_h
1257     socklen_t
1258     soundcard_h
1259     strerror_r
1260     strptime
1261     struct_addrinfo
1262     struct_ipv6_mreq
1263     struct_rusage_ru_maxrss
1264     struct_sockaddr_in6
1265     struct_sockaddr_sa_len
1266     struct_sockaddr_storage
1267     struct_v4l2_frmivalenum_discrete
1268     symver
1269     symver_asm_label
1270     symver_gnu_asm
1271     sysconf
1272     sysctl
1273     sys_mman_h
1274     sys_param_h
1275     sys_resource_h
1276     sys_select_h
1277     sys_soundcard_h
1278     sys_videoio_h
1279     termios_h
1280     threads
1281     trunc
1282     truncf
1283     unistd_h
1284     usleep
1285     vfp_args
1286     VirtualAlloc
1287     windows_h
1288     winsock2_h
1289     xform_asm
1290     xmm_clobbers
1291     yasm
1292 "
1293
1294 # options emitted with CONFIG_ prefix but not available on command line
1295 CONFIG_EXTRA="
1296     aandct
1297     avutil
1298     golomb
1299     gplv3
1300     h264chroma
1301     h264dsp
1302     h264pred
1303     h264qpel
1304     huffman
1305     lgplv3
1306     lpc
1307 "
1308
1309 CMDLINE_SELECT="
1310     $ARCH_EXT_LIST
1311     $CONFIG_LIST
1312     $THREADS_LIST
1313     asm
1314     coverage
1315     cross_compile
1316     debug
1317     extra_warnings
1318     logging
1319     optimizations
1320     stripping
1321     symver
1322     yasm
1323 "
1324
1325 PATHS_LIST='
1326     bindir
1327     datadir
1328     incdir
1329     libdir
1330     mandir
1331     prefix
1332     shlibdir
1333 '
1334
1335 CMDLINE_SET="
1336     $PATHS_LIST
1337     ar
1338     arch
1339     as
1340     assert_level
1341     build_suffix
1342     cc
1343     cpu
1344     cross_prefix
1345     cxx
1346     dep_cc
1347     extra_version
1348     host_cc
1349     host_cflags
1350     host_ldflags
1351     host_libs
1352     host_os
1353     install
1354     ld
1355     logfile
1356     malloc_prefix
1357     nm
1358     optflags
1359     pkg_config
1360     postproc_version
1361     progs_suffix
1362     random_seed
1363     samples
1364     strip
1365     sysinclude
1366     sysroot
1367     target_exec
1368     target_os
1369     target_path
1370     valgrind
1371     yasmexe
1372 "
1373
1374 CMDLINE_APPEND="
1375     extra_cflags
1376     extra_cxxflags
1377 "
1378
1379 # code dependency declarations
1380
1381 # architecture extensions
1382
1383 armv5te_deps="arm"
1384 armv6_deps="arm"
1385 armv6t2_deps="arm"
1386 armvfp_deps="arm"
1387 neon_deps="arm"
1388 vfpv3_deps="armvfp"
1389
1390 mipsfpu_deps="mips"
1391 mips32r2_deps="mips"
1392 mipsdspr1_deps="mips"
1393 mipsdspr2_deps="mips"
1394 mmi_deps="mips"
1395
1396 altivec_deps="ppc"
1397 ppc4xx_deps="ppc"
1398
1399 vis_deps="sparc"
1400
1401 x86_64_suggest="cmov fast_cmov"
1402 amd3dnow_deps="mmx"
1403 amd3dnowext_deps="amd3dnow"
1404 mmx_deps="x86"
1405 mmx2_deps="mmx"
1406 sse_deps="mmx"
1407 ssse3_deps="sse"
1408 avx_deps="ssse3"
1409
1410 aligned_stack_if_any="ppc x86"
1411 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1412 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1413 fast_unaligned_if_any="armv6 ppc x86"
1414
1415 inline_asm_deps="!tms470"
1416 need_memalign="altivec neon sse"
1417
1418 symver_if_any="symver_asm_label symver_gnu_asm"
1419
1420 # subsystems
1421 dct_select="rdft"
1422 mdct_select="fft"
1423 rdft_select="fft"
1424 mpegaudiodsp_select="dct"
1425
1426 # decoders / encoders / hardware accelerators
1427 aac_decoder_select="mdct sinewin"
1428 aac_encoder_select="mdct sinewin"
1429 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1430 ac3_decoder_select="mdct ac3dsp ac3_parser"
1431 ac3_encoder_select="mdct ac3dsp"
1432 ac3_fixed_encoder_select="mdct ac3dsp"
1433 alac_encoder_select="lpc"
1434 amrnb_decoder_select="lsp"
1435 amrwb_decoder_select="lsp"
1436 amv_encoder_select="aandct"
1437 atrac1_decoder_select="mdct sinewin"
1438 atrac3_decoder_select="mdct"
1439 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1440 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1441 cavs_decoder_select="golomb"
1442 cook_decoder_select="mdct sinewin"
1443 cscd_decoder_suggest="zlib"
1444 dca_decoder_select="mdct"
1445 dirac_decoder_select="dwt golomb"
1446 dnxhd_encoder_select="aandct"
1447 dxa_decoder_select="zlib"
1448 eac3_decoder_select="ac3_decoder"
1449 eac3_encoder_select="mdct ac3dsp"
1450 eamad_decoder_select="aandct"
1451 eatgq_decoder_select="aandct"
1452 eatqi_decoder_select="aandct"
1453 ffv1_decoder_select="golomb"
1454 flac_decoder_select="golomb"
1455 flac_encoder_select="golomb lpc"
1456 flashsv_decoder_select="zlib"
1457 flashsv_encoder_select="zlib"
1458 flashsv2_encoder_select="zlib"
1459 flashsv2_decoder_select="zlib"
1460 flv_decoder_select="h263_decoder"
1461 flv_encoder_select="h263_encoder"
1462 fraps_decoder_select="huffman"
1463 h261_encoder_select="aandct"
1464 h263_decoder_select="h263_parser"
1465 h263_encoder_select="aandct"
1466 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1467 h263i_decoder_select="h263_decoder"
1468 h263p_encoder_select="h263_encoder"
1469 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1470 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1471 h264_dxva2_hwaccel_deps="dxva2api_h"
1472 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1473 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1474 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1475 h264_vda_hwaccel_select="vda h264_decoder"
1476 h264_vdpau_decoder_select="vdpau h264_decoder"
1477 iac_decoder_select="fft mdct sinewin"
1478 imc_decoder_select="fft mdct sinewin"
1479 jpegls_decoder_select="golomb"
1480 jpegls_encoder_select="golomb"
1481 ljpeg_encoder_select="aandct"
1482 loco_decoder_select="golomb"
1483 mjpeg_encoder_select="aandct"
1484 mlp_decoder_select="mlp_parser"
1485 mp1_decoder_select="mpegaudiodsp"
1486 mp1float_decoder_select="mpegaudiodsp"
1487 mp2_decoder_select="mpegaudiodsp"
1488 mp2float_decoder_select="mpegaudiodsp"
1489 mp3_decoder_select="mpegaudiodsp"
1490 mp3adu_decoder_select="mpegaudiodsp"
1491 mp3adufloat_decoder_select="mpegaudiodsp"
1492 mp3float_decoder_select="mpegaudiodsp"
1493 mp3on4_decoder_select="mpegaudiodsp"
1494 mp3on4float_decoder_select="mpegaudiodsp"
1495 mpc7_decoder_select="mpegaudiodsp"
1496 mpc8_decoder_select="mpegaudiodsp"
1497 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1498 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1499 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1500 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1501 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1502 mpeg1video_encoder_select="aandct"
1503 mpeg2_crystalhd_decoder_select="crystalhd"
1504 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1505 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1506 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1507 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1508 mpeg2video_encoder_select="aandct"
1509 mpeg4_crystalhd_decoder_select="crystalhd"
1510 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1511 mpeg4_encoder_select="h263_encoder"
1512 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1513 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1514 msmpeg4_crystalhd_decoder_select="crystalhd"
1515 msmpeg4v1_decoder_select="h263_decoder"
1516 msmpeg4v1_encoder_select="h263_encoder"
1517 msmpeg4v2_decoder_select="h263_decoder"
1518 msmpeg4v2_encoder_select="h263_encoder"
1519 msmpeg4v3_decoder_select="h263_decoder"
1520 msmpeg4v3_encoder_select="h263_encoder"
1521 nellymoser_decoder_select="mdct sinewin"
1522 nellymoser_encoder_select="mdct sinewin"
1523 png_decoder_select="zlib"
1524 png_encoder_select="zlib"
1525 qcelp_decoder_select="lsp"
1526 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1527 ra_144_encoder_select="lpc"
1528 ralf_decoder_select="golomb"
1529 rv10_decoder_select="h263_decoder"
1530 rv10_encoder_select="h263_encoder"
1531 rv20_decoder_select="h263_decoder"
1532 rv20_encoder_select="h263_encoder"
1533 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1534 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1535 shorten_decoder_select="golomb"
1536 sipr_decoder_select="lsp"
1537 snow_decoder_select="dwt"
1538 snow_encoder_select="aandct dwt"
1539 sonic_decoder_select="golomb"
1540 sonic_encoder_select="golomb"
1541 sonic_ls_encoder_select="golomb"
1542 svq1_encoder_select="aandct"
1543 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1544 svq3_decoder_suggest="zlib"
1545 theora_decoder_select="vp3_decoder"
1546 tiff_decoder_suggest="zlib"
1547 tiff_encoder_suggest="zlib"
1548 tscc_decoder_select="zlib"
1549 twinvq_decoder_select="mdct lsp sinewin"
1550 vc1_crystalhd_decoder_select="crystalhd"
1551 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1552 vc1_dxva2_hwaccel_deps="dxva2api_h"
1553 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1554 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1555 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1556 vc1image_decoder_select="vc1_decoder"
1557 vorbis_decoder_select="mdct"
1558 vorbis_encoder_select="mdct"
1559 vp6_decoder_select="huffman"
1560 vp6a_decoder_select="vp6_decoder"
1561 vp6f_decoder_select="vp6_decoder"
1562 vp8_decoder_select="h264pred h264qpel"
1563 wmapro_decoder_select="mdct sinewin"
1564 wmav1_decoder_select="mdct sinewin"
1565 wmav1_encoder_select="mdct sinewin"
1566 wmav2_decoder_select="mdct sinewin"
1567 wmav2_encoder_select="mdct sinewin"
1568 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1569 wmv1_decoder_select="h263_decoder"
1570 wmv1_encoder_select="h263_encoder"
1571 wmv2_decoder_select="h263_decoder"
1572 wmv2_encoder_select="h263_encoder"
1573 wmv3_decoder_select="vc1_decoder"
1574 wmv3_crystalhd_decoder_select="crystalhd"
1575 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1576 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1577 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1578 wmv3image_decoder_select="wmv3_decoder"
1579 zerocodec_decoder_select="zlib"
1580 zlib_decoder_select="zlib"
1581 zlib_encoder_select="zlib"
1582 zmbv_decoder_select="zlib"
1583 zmbv_encoder_select="zlib"
1584
1585 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1586 vaapi_deps="va_va_h"
1587 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1588 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1589
1590 # parsers
1591 h264_parser_select="golomb h264dsp h264pred"
1592
1593 # external libraries
1594 libaacplus_encoder_deps="libaacplus"
1595 libcelt_decoder_deps="libcelt"
1596 libfaac_encoder_deps="libfaac"
1597 libgsm_decoder_deps="libgsm"
1598 libgsm_encoder_deps="libgsm"
1599 libgsm_ms_decoder_deps="libgsm"
1600 libgsm_ms_encoder_deps="libgsm"
1601 libilbc_decoder_deps="libilbc"
1602 libilbc_encoder_deps="libilbc"
1603 libmodplug_demuxer_deps="libmodplug"
1604 libmp3lame_encoder_deps="libmp3lame"
1605 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1606 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1607 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1608 libopenjpeg_decoder_deps="libopenjpeg"
1609 libopenjpeg_encoder_deps="libopenjpeg"
1610 libschroedinger_decoder_deps="libschroedinger"
1611 libschroedinger_encoder_deps="libschroedinger"
1612 libspeex_decoder_deps="libspeex"
1613 libspeex_encoder_deps="libspeex"
1614 libstagefright_h264_decoder_deps="libstagefright_h264"
1615 libtheora_encoder_deps="libtheora"
1616 libvo_aacenc_encoder_deps="libvo_aacenc"
1617 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1618 libvorbis_decoder_deps="libvorbis"
1619 libvorbis_encoder_deps="libvorbis"
1620 libvpx_decoder_deps="libvpx"
1621 libvpx_encoder_deps="libvpx"
1622 libx264_encoder_deps="libx264"
1623 libx264rgb_encoder_deps="libx264"
1624 libxavs_encoder_deps="libxavs"
1625 libxvid_encoder_deps="libxvid"
1626 libutvideo_decoder_deps="libutvideo"
1627 libutvideo_encoder_deps="libutvideo"
1628
1629 # demuxers / muxers
1630 ac3_demuxer_select="ac3_parser"
1631 asf_stream_muxer_select="asf_muxer"
1632 avisynth_demuxer_deps="avisynth"
1633 dirac_demuxer_select="dirac_parser"
1634 eac3_demuxer_select="ac3_parser"
1635 flac_demuxer_select="flac_parser"
1636 ipod_muxer_select="mov_muxer"
1637 libnut_demuxer_deps="libnut"
1638 libnut_muxer_deps="libnut"
1639 matroska_audio_muxer_select="matroska_muxer"
1640 matroska_demuxer_suggest="zlib bzlib"
1641 mov_demuxer_suggest="zlib"
1642 mp3_demuxer_select="mpegaudio_parser"
1643 mp4_muxer_select="mov_muxer"
1644 mpegts_muxer_select="adts_muxer latm_muxer"
1645 mpegtsraw_demuxer_select="mpegts_demuxer"
1646 mxf_d10_muxer_select="mxf_muxer"
1647 ogg_demuxer_select="golomb"
1648 psp_muxer_select="mov_muxer"
1649 rtp_demuxer_select="sdp_demuxer"
1650 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1651 rtsp_demuxer_select="http_protocol rtpdec"
1652 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1653 sap_demuxer_select="sdp_demuxer"
1654 sap_muxer_select="rtp_muxer rtp_protocol"
1655 sdp_demuxer_select="rtpdec"
1656 spdif_muxer_select="aac_parser"
1657 tg2_muxer_select="mov_muxer"
1658 tgp_muxer_select="mov_muxer"
1659 w64_demuxer_deps="wav_demuxer"
1660
1661 # indevs / outdevs
1662 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1663 alsa_outdev_deps="alsa_asoundlib_h"
1664 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1665 dshow_indev_deps="IBaseFilter"
1666 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1667 dv1394_indev_deps="dv1394 dv_demuxer"
1668 fbdev_indev_deps="linux_fb_h"
1669 jack_indev_deps="jack_jack_h sem_timedwait"
1670 lavfi_indev_deps="avfilter"
1671 libcdio_indev_deps="libcdio"
1672 libdc1394_indev_deps="libdc1394"
1673 libv4l2_indev_deps="libv4l2"
1674 openal_indev_deps="openal"
1675 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1676 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1677 pulse_indev_deps="libpulse"
1678 sdl_outdev_deps="sdl"
1679 sndio_indev_deps="sndio_h"
1680 sndio_outdev_deps="sndio_h"
1681 v4l_indev_deps="linux_videodev_h"
1682 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1683 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1684 vfwcap_indev_extralibs="-lavicap32"
1685 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1686
1687 # protocols
1688 bluray_protocol_deps="libbluray"
1689 gopher_protocol_deps="network"
1690 httpproxy_protocol_deps="network"
1691 httpproxy_protocol_select="tcp_protocol"
1692 http_protocol_deps="network"
1693 http_protocol_select="tcp_protocol"
1694 https_protocol_select="tls_protocol"
1695 librtmp_protocol_deps="librtmp"
1696 librtmpe_protocol_deps="librtmp"
1697 librtmps_protocol_deps="librtmp"
1698 librtmpt_protocol_deps="librtmp"
1699 librtmpte_protocol_deps="librtmp"
1700 mmsh_protocol_select="http_protocol"
1701 mmst_protocol_deps="network"
1702 rtmp_protocol_deps="!librtmp_protocol"
1703 rtmp_protocol_select="tcp_protocol"
1704 rtmphttp_protocol_deps="!librtmp_protocol"
1705 rtmphttp_protocol_select="http_protocol"
1706 rtmpt_protocol_deps="!librtmp_protocol"
1707 rtmpt_protocol_select="rtmphttp_protocol"
1708 rtp_protocol_select="udp_protocol"
1709 sctp_protocol_deps="network netinet_sctp_h"
1710 tcp_protocol_deps="network"
1711 tls_protocol_deps_any="openssl gnutls"
1712 tls_protocol_select="tcp_protocol"
1713 udp_protocol_deps="network"
1714
1715 # filters
1716 aconvert_filter_deps="swresample"
1717 amovie_filter_deps="avcodec avformat"
1718 aresample_filter_deps="swresample"
1719 ass_filter_deps="libass"
1720 asyncts_filter_deps="avresample"
1721 atempo_filter_deps="avcodec rdft"
1722 blackframe_filter_deps="gpl"
1723 boxblur_filter_deps="gpl"
1724 colormatrix_filter_deps="gpl"
1725 cropdetect_filter_deps="gpl"
1726 delogo_filter_deps="gpl"
1727 deshake_filter_deps="avcodec"
1728 drawtext_filter_deps="libfreetype"
1729 frei0r_filter_deps="frei0r dlopen"
1730 frei0r_filter_extralibs='$ldl'
1731 frei0r_src_filter_deps="frei0r dlopen"
1732 frei0r_src_filter_extralibs='$ldl'
1733 hqdn3d_filter_deps="gpl"
1734 movie_filter_deps="avcodec avformat"
1735 mp_filter_deps="gpl avcodec swscale postproc"
1736 mptestsrc_filter_deps="gpl"
1737 negate_filter_deps="lut_filter"
1738 resample_filter_deps="avresample"
1739 ocv_filter_deps="libopencv"
1740 pan_filter_deps="swresample"
1741 removelogo_filter_deps="avcodec avformat swscale"
1742 scale_filter_deps="swscale"
1743 select_filter_deps="avcodec"
1744 super2xsai_filter_deps="gpl"
1745 tinterlace_filter_deps="gpl"
1746 yadif_filter_deps="gpl"
1747
1748 # libraries
1749 avdevice_deps="avcodec avformat"
1750 avformat_deps="avcodec"
1751 postproc_deps="gpl"
1752
1753 # programs
1754 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1755 ffmpeg_select="buffersink_filter format_filter aformat_filter
1756                setpts_filter null_filter anull_filter"
1757 ffplay_deps="avcodec avformat swscale swresample sdl"
1758 ffplay_select="buffersink_filter rdft"
1759 ffprobe_deps="avcodec avformat"
1760 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1761 ffserver_extralibs='$ldl'
1762
1763 doc_deps="texi2html"
1764
1765 # tests
1766
1767 test_deps(){
1768     suf1=$1
1769     suf2=$2
1770     shift 2
1771     for v; do
1772         dep=${v%=*}
1773         tests=${v#*=}
1774         for name in ${tests}; do
1775             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1776         done
1777     done
1778 }
1779
1780 mxf_d10_test_deps="avfilter"
1781 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1782
1783 test_deps _muxer _demuxer                                               \
1784     aiff                                                                \
1785     pcm_alaw=alaw                                                       \
1786     asf                                                                 \
1787     au                                                                  \
1788     avi                                                                 \
1789     dv=dv_fmt                                                           \
1790     ffm                                                                 \
1791     flv=flv_fmt                                                         \
1792     gxf                                                                 \
1793     matroska=mkv                                                        \
1794     mmf                                                                 \
1795     mov="mov ismv"                                                      \
1796     pcm_mulaw=mulaw                                                     \
1797     mxf="mxf mxf_d10"                                                   \
1798     nut                                                                 \
1799     ogg="ogg ogg_vp3"                                                   \
1800     rawvideo=pixfmt                                                     \
1801     rm                                                                  \
1802     swf                                                                 \
1803     mpegts=ts                                                           \
1804     voc                                                                 \
1805     wav                                                                 \
1806     yuv4mpegpipe=yuv4mpeg                                               \
1807
1808 colormatrix1_test_deps="colormatrix_filter"
1809 colormatrix2_test_deps="colormatrix_filter"
1810 flashsv2_test_deps="zlib"
1811 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1812 mpng_test_deps="zlib"
1813 pp_test_deps="mp_filter"
1814 pp2_test_deps="mp_filter"
1815 pp3_test_deps="mp_filter"
1816 pp4_test_deps="mp_filter"
1817 pp5_test_deps="mp_filter"
1818 pp6_test_deps="mp_filter"
1819 zlib_test_deps="zlib"
1820 zmbv_test_deps="zlib"
1821
1822 # default parameters
1823
1824 logfile="config.log"
1825
1826 # installation paths
1827 prefix_default="/usr/local"
1828 bindir_default='${prefix}/bin'
1829 datadir_default='${prefix}/share/ffmpeg'
1830 incdir_default='${prefix}/include'
1831 libdir_default='${prefix}/lib'
1832 mandir_default='${prefix}/share/man'
1833 shlibdir_default="$libdir_default"
1834 postproc_version_default="current"
1835
1836 # toolchain
1837 ar_default="ar"
1838 cc_default="gcc"
1839 cxx_default="g++"
1840 cc_version=\"unknown\"
1841 host_cc_default="gcc"
1842 install="install"
1843 ln_s="ln -sf"
1844 nm_default="nm"
1845 objformat="elf"
1846 pkg_config_default=pkg-config
1847 ranlib="ranlib"
1848 strip_default="strip"
1849 yasmexe_default="yasm"
1850
1851 nm_opts='-g'
1852 nogas=":"
1853
1854 # machine
1855 arch_default=$(uname -m)
1856 cpu="generic"
1857
1858 # OS
1859 target_os_default=$(tolower $(uname -s))
1860 host_os=$target_os_default
1861
1862 # alternative libpostproc version
1863 ALT_PP_VER_MAJOR=51
1864 ALT_PP_VER_MINOR=2
1865 ALT_PP_VER_MICRO=101
1866 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1867
1868 # configurable options
1869 enable $PROGRAM_LIST
1870
1871 enable avcodec
1872 enable avdevice
1873 enable avfilter
1874 enable avformat
1875 enable avutil
1876 enable postproc
1877 enable stripping
1878 enable swresample
1879 enable swscale
1880
1881 enable asm
1882 enable debug
1883 enable doc
1884 enable fastdiv
1885 enable network
1886 enable optimizations
1887 enable safe_bitstream_reader
1888 enable static
1889 enable swscale_alpha
1890
1891 # build settings
1892 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1893 FFSERVERLDFLAGS=-Wl,-E
1894 LIBPREF="lib"
1895 LIBSUF=".a"
1896 FULLNAME='$(NAME)$(BUILDSUF)'
1897 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1898 SLIBPREF="lib"
1899 SLIBSUF=".so"
1900 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1901 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1902 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1903 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1904 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1905 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1906
1907 AS_O='-o $@'
1908 CC_O='-o $@'
1909 CXX_O='-o $@'
1910
1911 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1912 host_libs='-lm'
1913
1914 target_path='$(CURDIR)'
1915
1916 # since the object filename is not given with the -MM flag, the compiler
1917 # is only able to print the basename, and we must add the path ourselves
1918 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1919 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1920
1921 # find source path
1922 if test -f configure; then
1923     source_path=.
1924 else
1925     source_path=$(cd $(dirname "$0"); pwd)
1926     echo "$source_path" | grep -q '[[:blank:]]' &&
1927         die "Out of tree builds are impossible with whitespace in source path."
1928     test -e "$source_path/config.h" &&
1929         die "Out of tree builds are impossible with config.h in source dir."
1930 fi
1931
1932 for v in "$@"; do
1933     r=${v#*=}
1934     l=${v%"$r"}
1935     r=$(sh_quote "$r")
1936     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1937 done
1938
1939 find_things(){
1940     thing=$1
1941     pattern=$2
1942     file=$source_path/$3
1943     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1944 }
1945
1946 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1947 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1948 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1949 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1950 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1951 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1952 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1953 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1954 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1955 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1956 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1957
1958 ALL_COMPONENTS="
1959     $BSF_LIST
1960     $DECODER_LIST
1961     $DEMUXER_LIST
1962     $ENCODER_LIST
1963     $FILTER_LIST
1964     $HWACCEL_LIST
1965     $INDEV_LIST
1966     $MUXER_LIST
1967     $OUTDEV_LIST
1968     $PARSER_LIST
1969     $PROTOCOL_LIST
1970 "
1971
1972 find_tests(){
1973     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1974 }
1975
1976 LAVF_FATE_TESTS=$(find_tests lavf-fate)
1977 LAVF_TESTS=$(find_tests lavf)
1978 LAVFI_TESTS=$(find_tests lavfi)
1979 SEEK_TESTS=$(find_tests seek seek_)
1980
1981 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1982
1983 for n in $COMPONENT_LIST; do
1984     v=$(toupper ${n%s})_LIST
1985     eval enable \$$v
1986     eval ${n}_if_any="\$$v"
1987 done
1988
1989 enable $ARCH_EXT_LIST $ALL_TESTS
1990
1991 die_unknown(){
1992     echo "Unknown option \"$1\"."
1993     echo "See $0 --help for available options."
1994     exit 1
1995 }
1996
1997 show_list() {
1998     suffix=_$1
1999     shift
2000     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2001     exit 0
2002 }
2003
2004 rand_list(){
2005     IFS=', '
2006     set -- $*
2007     unset IFS
2008     for thing; do
2009         comp=${thing%:*}
2010         prob=${thing#$comp}
2011         prob=${prob#:}
2012         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2013         echo "prob ${prob:-0.5}"
2014         printf '%s\n' $comp
2015     done
2016 }
2017
2018 do_random(){
2019     action=$1
2020     shift
2021     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2022     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2023 }
2024
2025 for opt do
2026     optval="${opt#*=}"
2027     case "$opt" in
2028     --extra-ldflags=*) add_ldflags $optval
2029     ;;
2030     --extra-libs=*) add_extralibs $optval
2031     ;;
2032     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2033     ;;
2034     --enable-debug=*) debuglevel="$optval"
2035     ;;
2036     --disable-everything)
2037     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2038     ;;
2039     --enable-random|--disable-random)
2040     action=${opt%%-random}
2041     do_random ${action#--} $COMPONENT_LIST
2042     ;;
2043     --enable-random=*|--disable-random=*)
2044     action=${opt%%-random=*}
2045     do_random ${action#--} $optval
2046     ;;
2047     --enable-*=*|--disable-*=*)
2048     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2049     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2050     eval list=\$$(toupper $thing)_LIST
2051     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2052     $action $(filter "$name" $list)
2053     ;;
2054     --enable-?*|--disable-?*)
2055     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2056     if is_in $option $COMPONENT_LIST; then
2057         test $action = disable && action=unset
2058         eval $action \$$(toupper ${option%s})_LIST
2059     elif is_in $option $CMDLINE_SELECT; then
2060         $action $option
2061     else
2062         die_unknown $opt
2063     fi
2064     ;;
2065     --list-*)
2066         NAME="${opt#--list-}"
2067         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2068         NAME=${NAME%s}
2069         eval show_list $NAME \$$(toupper $NAME)_LIST
2070     ;;
2071     --help|-h) show_help
2072     ;;
2073     *)
2074     optname="${opt%%=*}"
2075     optname="${optname#--}"
2076     optname=$(echo "$optname" | sed 's/-/_/g')
2077     if is_in $optname $CMDLINE_SET; then
2078         eval $optname='$optval'
2079     elif is_in $optname $CMDLINE_APPEND; then
2080         append $optname "$optval"
2081     else
2082          die_unknown $opt
2083     fi
2084     ;;
2085     esac
2086 done
2087
2088 disabled logging && logfile=/dev/null
2089
2090 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2091 set >> $logfile
2092
2093 test -n "$cross_prefix" && enable cross_compile
2094
2095 if enabled cross_compile; then
2096     test -n "$arch" && test -n "$target_os" ||
2097         die "Must specify target arch and OS when cross-compiling"
2098 fi
2099
2100 set_default arch target_os postproc_version
2101
2102 # Check if we should build alternative libpostproc version instead of current
2103 if   test "$postproc_version" = $ALT_PP_VER; then
2104   LIBPOSTPROC_VERSION=$ALT_PP_VER
2105   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2106   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2107   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2108 elif test "$postproc_version" != current; then
2109   die "Invalid argument to --postproc-version. See --help output."
2110 fi
2111
2112 ar_default="${cross_prefix}${ar_default}"
2113 cc_default="${cross_prefix}${cc_default}"
2114 cxx_default="${cross_prefix}${cxx_default}"
2115 nm_default="${cross_prefix}${nm_default}"
2116 pkg_config_default="${cross_prefix}${pkg_config_default}"
2117 ranlib="${cross_prefix}${ranlib}"
2118 strip_default="${cross_prefix}${strip_default}"
2119
2120 sysinclude_default="${sysroot}/usr/include"
2121
2122 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2123 enabled cross_compile || host_cc_default=$cc
2124 set_default host_cc
2125
2126 if ! $pkg_config --version >/dev/null 2>&1; then
2127     warn "$pkg_config not found, library detection may fail."
2128     pkg_config=false
2129 fi
2130
2131 exesuf() {
2132     case $1 in
2133         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2134     esac
2135 }
2136
2137 EXESUF=$(exesuf $target_os)
2138 HOSTEXESUF=$(exesuf $host_os)
2139
2140 # set temporary file name
2141 : ${TMPDIR:=$TEMPDIR}
2142 : ${TMPDIR:=$TMP}
2143 : ${TMPDIR:=/tmp}
2144
2145 if ! check_cmd mktemp -u XXXXXX; then
2146     # simple replacement for missing mktemp
2147     # NOT SAFE FOR GENERAL USE
2148     mktemp(){
2149         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2150     }
2151 fi
2152
2153 tmpfile(){
2154     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2155         (set -C; exec > $tmp) 2>/dev/null ||
2156         die "Unable to create temporary file in $TMPDIR."
2157     append TMPFILES $tmp
2158     eval $1=$tmp
2159 }
2160
2161 trap 'rm -f -- $TMPFILES' EXIT
2162
2163 tmpfile TMPASM .asm
2164 tmpfile TMPC   .c
2165 tmpfile TMPCPP .cpp
2166 tmpfile TMPE   $EXESUF
2167 tmpfile TMPH   .h
2168 tmpfile TMPO   .o
2169 tmpfile TMPS   .S
2170 tmpfile TMPSH  .sh
2171 tmpfile TMPV   .ver
2172
2173 unset -f mktemp
2174
2175 chmod +x $TMPE
2176
2177 # make sure we can execute files in $TMPDIR
2178 cat > $TMPSH 2>> $logfile <<EOF
2179 #! /bin/sh
2180 EOF
2181 chmod +x $TMPSH >> $logfile 2>&1
2182 if ! $TMPSH >> $logfile 2>&1; then
2183     cat <<EOF
2184 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2185 variable to another directory and make sure that it is not mounted noexec.
2186 EOF
2187     die "Sanity test failed."
2188 fi
2189
2190 filter_asflags=echo
2191 filter_cflags=echo
2192 filter_cppflags=echo
2193
2194 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2195     cc_type=llvm_gcc
2196     cc_version=__VERSION__
2197     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2198     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2199     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2200     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2201     speed_cflags='-O3'
2202     size_cflags='-Os'
2203 elif $cc -v 2>&1 | grep -qi ^gcc; then
2204     cc_type=gcc
2205     cc_version=__VERSION__
2206     gcc_version=$($cc --version | head -n1)
2207     gcc_basever=$($cc -dumpversion)
2208     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2209     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2210     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2211     if ! $cc -dumpversion | grep -q '^2\.'; then
2212         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2213         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2214     fi
2215     speed_cflags='-O3'
2216     size_cflags='-Os'
2217 elif $cc --version 2>/dev/null | grep -q Intel; then
2218     cc_type=icc
2219     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2220     cc_ident=$($cc --version | head -n1)
2221     icc_version=$($cc -dumpversion)
2222     CC_DEPFLAGS='-MMD'
2223     AS_DEPFLAGS='-MMD'
2224     speed_cflags='-O3'
2225     size_cflags='-Os'
2226     noopt_cflags='-O1'
2227 elif $cc -v 2>&1 | grep -q xlc; then
2228     cc_type=xlc
2229     cc_version="AV_STRINGIFY(__IBMC__)"
2230     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2231     speed_cflags='-O5'
2232     size_cflags='-O5 -qcompact'
2233 elif $cc -V 2>/dev/null | grep -q Compaq; then
2234     cc_type=ccc
2235     cc_version="AV_STRINGIFY(__DECC_VER)"
2236     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2237     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2238     debuglevel=3
2239     add_ldflags -Wl,-z,now # calls to libots crash without this
2240     speed_cflags='-fast'
2241     size_cflags='-O1'
2242 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2243     test -d "$sysroot" || die "No valid sysroot specified."
2244     cc_type=armcc
2245     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2246     cc_ident=$($cc --vsn | head -n1)
2247     armcc_conf="$PWD/armcc.conf"
2248     $cc --arm_linux_configure                 \
2249         --arm_linux_config_file="$armcc_conf" \
2250         --configure_sysroot="$sysroot"        \
2251         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2252         die "Error creating armcc configuration file."
2253     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2254     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2255     as_default="${cross_prefix}gcc"
2256     CC_DEPFLAGS='-MMD'
2257     AS_DEPFLAGS='-MMD'
2258     speed_cflags='-O3'
2259     size_cflags='-Os'
2260     filter_asflags="filter_out -W${armcc_opt}*"
2261 elif $cc -version 2>/dev/null | grep -q TMS470; then
2262     cc_type=tms470
2263     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2264     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2265     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2266     CC_O='-fr=$(@D)'
2267     as_default="${cross_prefix}gcc"
2268     ld_default="${cross_prefix}gcc"
2269     TMPO=$(basename $TMPC .c).o
2270     append TMPFILES $TMPO
2271     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2272     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2273     AS_DEPFLAGS='-MMD'
2274     speed_cflags='-O3 -mf=5'
2275     size_cflags='-O3 -mf=2'
2276     filter_cflags=tms470_flags
2277     tms470_flags(){
2278         for flag; do
2279             case $flag in
2280                 -march=*|-mcpu=*)
2281                     case "${flag#*=}" in
2282                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2283                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2284                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2285                         armv6*|arm11*)          echo -mv=6   ;;
2286                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2287                                                 echo -mv=5e  ;;
2288                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2289                     esac
2290                     ;;
2291                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2292                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2293                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2294                 -msoft-float)   echo --float_support=vfplib       ;;
2295                 -O[0-3]|-mf=*)  echo $flag                        ;;
2296                 -g)             echo -g -mn                       ;;
2297                 -pds=*)         echo $flag                        ;;
2298             esac
2299         done
2300     }
2301 elif $cc -v 2>&1 | grep -q clang; then
2302     cc_type=clang
2303     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2304         cc_version=__clang_version__ || cc_version=__VERSION__
2305     cc_ident=$($cc --version | head -n1)
2306     CC_DEPFLAGS='-MMD'
2307     AS_DEPFLAGS='-MMD'
2308     speed_cflags='-O3'
2309     size_cflags='-Os'
2310 elif $cc -V 2>&1 | grep -q Sun; then
2311     cc_type=suncc
2312     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2313     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2314     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2315     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2316     add_ldflags -xc99
2317     speed_cflags='-O5'
2318     size_cflags='-O5 -xspace'
2319     filter_cflags=suncc_flags
2320     suncc_flags(){
2321         for flag; do
2322             case $flag in
2323                 -march=*|-mcpu=*)
2324                     case "${flag#*=}" in
2325                         native)                   echo -xtarget=native       ;;
2326                         v9|niagara)               echo -xarch=sparc          ;;
2327                         ultrasparc)               echo -xarch=sparcvis       ;;
2328                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2329                         i586|pentium)             echo -xchip=pentium        ;;
2330                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2331                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2332                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2333                         pentium4*)          echo -xtarget=pentium4           ;;
2334                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2335                         *-sse3)             echo -xarch=sse3                 ;;
2336                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2337                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2338                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2339                         k8|opteron|athlon64|athlon-fx)
2340                                                   echo -xarch=sse2a          ;;
2341                         athlon*)                  echo -xarch=pentium_proa   ;;
2342                     esac
2343                     ;;
2344                 -std=c99)             echo -xc99              ;;
2345                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2346                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2347                 -W*,*)                echo $flag              ;;
2348                 -f*-*|-W*)                                    ;;
2349                 *)                    echo $flag              ;;
2350             esac
2351         done
2352     }
2353 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2354     cc_type=pathscale
2355     cc_version=__PATHSCALE__
2356     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2357     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2358     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2359     speed_cflags='-O2'
2360     size_cflags='-Os'
2361     filter_cflags='filter_out -Wdisabled-optimization'
2362 elif $cc -v 2>&1 | grep -q Open64; then
2363     cc_type=open64
2364     cc_version=__OPEN64__
2365     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2366     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2367     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2368     speed_cflags='-O2'
2369     size_cflags='-Os'
2370     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2371 elif $cc -V 2>&1 | grep -q Portland; then
2372     cc_type=pgi
2373     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2374     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2375     opt_common='-alias=ansi -Mlre -Mpre'
2376     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2377     size_cflags="-O2 -Munroll=c:1 $opt_common"
2378     noopt_cflags="-O1"
2379     filter_cflags=pgi_flags
2380     pgi_flags(){
2381         for flag; do
2382             case $flag in
2383                 -fomit-frame-pointer) echo -Mnoframe ;;
2384                 -g)                   echo -gopt ;;
2385                 *)                    echo $flag ;;
2386             esac
2387         done
2388     }
2389 fi
2390
2391 test -n "$cc_type" && enable $cc_type ||
2392     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2393
2394 : ${as_default:=$cc}
2395 : ${dep_cc_default:=$cc}
2396 : ${ld_default:=$cc}
2397 set_default ar as dep_cc ld
2398
2399 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2400 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2401 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2402
2403 add_cflags $extra_cflags
2404 add_cxxflags $extra_cxxflags
2405 add_asflags $extra_cflags
2406
2407 if test -n "$sysroot"; then
2408     case "$cc_type" in
2409         gcc|llvm_gcc|clang)
2410             add_cppflags --sysroot="$sysroot"
2411             add_ldflags --sysroot="$sysroot"
2412         ;;
2413         tms470)
2414             add_cppflags -I"$sysinclude"
2415             add_ldflags  --sysroot="$sysroot"
2416         ;;
2417     esac
2418 fi
2419
2420 if test "$cpu" = host; then
2421     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2422
2423     case "$cc_type" in
2424         gcc|llvm_gcc)
2425             check_native(){
2426                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2427                 sed -n "/cc1.*$1=/{
2428                             s/.*$1=\\([^ ]*\\).*/\\1/
2429                             p
2430                             q
2431                         }" $TMPE
2432             }
2433             cpu=$(check_native -march || check_native -mcpu)
2434         ;;
2435     esac
2436
2437     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2438 fi
2439
2440 # Deal with common $arch aliases
2441 case "$arch" in
2442     arm*|iPad*)
2443         arch="arm"
2444     ;;
2445     mips|mipsel|IP*)
2446         arch="mips"
2447     ;;
2448     mips64*)
2449         arch="mips"
2450         subarch="mips64"
2451     ;;
2452     parisc|hppa)
2453         arch="parisc"
2454     ;;
2455     parisc64|hppa64)
2456         arch="parisc"
2457         subarch="parisc64"
2458     ;;
2459     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2460         arch="ppc"
2461     ;;
2462     s390|s390x)
2463         arch="s390"
2464     ;;
2465     sh4|sh)
2466         arch="sh4"
2467     ;;
2468     sun4u|sparc64)
2469         arch="sparc"
2470         subarch="sparc64"
2471     ;;
2472     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2473         arch="x86"
2474     ;;
2475 esac
2476
2477 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2478 enable $arch
2479
2480 # Add processor-specific flags
2481 if test "$cpu" = generic; then
2482     : do nothing
2483 elif enabled ppc; then
2484
2485     case $(tolower $cpu) in
2486         601|ppc601|powerpc601)
2487             cpuflags="-mcpu=601"
2488             disable altivec
2489         ;;
2490         603*|ppc603*|powerpc603*)
2491             cpuflags="-mcpu=603"
2492             disable altivec
2493         ;;
2494         604*|ppc604*|powerpc604*)
2495             cpuflags="-mcpu=604"
2496             disable altivec
2497         ;;
2498         g3|75*|ppc75*|powerpc75*)
2499             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2500             disable altivec
2501         ;;
2502         g4|745*|ppc745*|powerpc745*)
2503             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2504         ;;
2505         74*|ppc74*|powerpc74*)
2506             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2507         ;;
2508         g5|970|ppc970|powerpc970)
2509             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2510         ;;
2511         power[3-7]*)
2512             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2513         ;;
2514         cell)
2515             cpuflags="-mcpu=cell"
2516             enable ldbrx
2517         ;;
2518         e500v2)
2519             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2520             disable altivec
2521         ;;
2522         e500)
2523             cpuflags="-mcpu=8540 -mhard-float"
2524             disable altivec
2525         ;;
2526     esac
2527
2528 elif enabled x86; then
2529
2530     case $cpu in
2531         i[345]86|pentium)
2532             cpuflags="-march=$cpu"
2533             disable mmx
2534         ;;
2535         # targets that do NOT support conditional mov (cmov)
2536         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2537             cpuflags="-march=$cpu"
2538             disable cmov
2539         ;;
2540         # targets that do support conditional mov (cmov)
2541         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2542             cpuflags="-march=$cpu"
2543             enable cmov
2544             enable fast_cmov
2545         ;;
2546         # targets that do support conditional mov but on which it's slow
2547         pentium4|pentium4m|prescott|nocona)
2548             cpuflags="-march=$cpu"
2549             enable cmov
2550             disable fast_cmov
2551         ;;
2552     esac
2553
2554 elif enabled sparc; then
2555
2556     case $cpu in
2557         niagara)
2558             cpuflags="-mcpu=$cpu"
2559             disable vis
2560         ;;
2561         sparc64)
2562             cpuflags="-mcpu=v9"
2563         ;;
2564     esac
2565
2566 elif enabled arm; then
2567
2568     case $cpu in
2569         armv*)
2570             cpuflags="-march=$cpu"
2571             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2572         ;;
2573         *)
2574             cpuflags="-mcpu=$cpu"
2575             case $cpu in
2576                 cortex-a*)                               subarch=armv7a  ;;
2577                 cortex-r*)                               subarch=armv7r  ;;
2578                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2579                 arm11*)                                  subarch=armv6   ;;
2580                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2581                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2582             esac
2583         ;;
2584     esac
2585
2586 elif enabled alpha; then
2587
2588     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2589
2590 elif enabled bfin; then
2591
2592     cpuflags="-mcpu=$cpu"
2593
2594 elif enabled mips; then
2595
2596     cpuflags="-march=$cpu"
2597
2598     case $cpu in
2599         24kc)
2600             disable mipsfpu
2601             disable mipsdspr1
2602             disable mipsdspr2
2603         ;;
2604         24kf*)
2605             disable mipsdspr1
2606             disable mipsdspr2
2607         ;;
2608         24kec|34kc|1004kc)
2609             disable mipsfpu
2610             disable mipsdspr2
2611         ;;
2612         24kef*|34kf*|1004kf*)
2613             disable mipsdspr2
2614         ;;
2615         74kc)
2616             disable mipsfpu
2617         ;;
2618     esac
2619
2620 elif enabled avr32; then
2621
2622     case $cpu in
2623         ap7[02]0[0-2])
2624             subarch="avr32_ap"
2625             cpuflags="-mpart=$cpu"
2626         ;;
2627         ap)
2628             subarch="avr32_ap"
2629             cpuflags="-march=$cpu"
2630         ;;
2631         uc3[ab]*)
2632             subarch="avr32_uc"
2633             cpuflags="-mcpu=$cpu"
2634         ;;
2635         uc)
2636             subarch="avr32_uc"
2637             cpuflags="-march=$cpu"
2638         ;;
2639     esac
2640
2641 fi
2642
2643 add_cflags $cpuflags
2644 add_asflags $cpuflags
2645
2646 # compiler sanity check
2647 check_exec <<EOF
2648 int main(void){ return 0; }
2649 EOF
2650 if test "$?" != 0; then
2651     echo "$cc is unable to create an executable file."
2652     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2653         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2654         echo "Only do this if you know what cross compiling means."
2655     fi
2656     die "C compiler test failed."
2657 fi
2658
2659 add_cppflags -D_ISOC99_SOURCE
2660 add_cxxflags -D__STDC_CONSTANT_MACROS
2661 check_cflags -std=c99
2662 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2663 #include <stdlib.h>
2664 EOF
2665 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2666 #include <stdlib.h>
2667 EOF
2668
2669 check_host_cflags -std=c99
2670 check_host_cflags -Wall
2671
2672 case "$arch" in
2673     alpha|ia64|mips|parisc|sparc)
2674         spic=$shared
2675     ;;
2676     x86)
2677         subarch="x86_32"
2678         check_cc <<EOF && subarch="x86_64"
2679         int test[(int)sizeof(char*) - 7];
2680 EOF
2681         if test "$subarch" = "x86_64"; then
2682             spic=$shared
2683         fi
2684     ;;
2685     ppc)
2686         check_cc <<EOF && subarch="ppc64"
2687         int test[(int)sizeof(char*) - 7];
2688 EOF
2689     ;;
2690 esac
2691
2692 enable $subarch
2693 enabled spic && enable pic
2694
2695 # OS specific
2696 case $target_os in
2697     haiku)
2698         prefix_default="/boot/common"
2699         network_extralibs="-lnetwork"
2700         host_libs=
2701         ;;
2702     sunos)
2703         FFSERVERLDFLAGS=""
2704         SHFLAGS='-shared -Wl,-h,$$(@F)'
2705         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2706         network_extralibs="-lsocket -lnsl"
2707         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2708         # When using suncc to build, the Solaris linker will mark
2709         # an executable with each instruction set encountered by
2710         # the Solaris assembler.  As our libraries contain their own
2711         # guards for processor-specific code, instead suppress
2712         # generation of the HWCAPS ELF section on Solaris x86 only.
2713         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2714         nm_opts='-P -g'
2715         ;;
2716     netbsd)
2717         disable symver
2718         oss_indev_extralibs="-lossaudio"
2719         oss_outdev_extralibs="-lossaudio"
2720         ;;
2721     openbsd|bitrig)
2722         # On OpenBSD 4.5. the compiler does not use PIC unless
2723         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2724         # however the generated executable will not do anything
2725         # (simply quits with exit-code 1, no crash, no output).
2726         # Thus explicitly enable PIC here.
2727         enable pic
2728         disable symver
2729         SHFLAGS='-shared'
2730         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2731         oss_indev_extralibs="-lossaudio"
2732         oss_outdev_extralibs="-lossaudio"
2733         ;;
2734     dragonfly)
2735         disable symver
2736         ;;
2737     freebsd)
2738         ;;
2739     bsd/os)
2740         add_extralibs -lpoll -lgnugetopt
2741         strip="strip -d"
2742         ;;
2743     darwin)
2744         gas="gas-preprocessor.pl $cc"
2745         enabled ppc && add_asflags -force_cpusubtype_ALL
2746         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2747         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2748         strip="${strip} -x"
2749         add_ldflags -Wl,-dynamic,-search_paths_first
2750         SLIBSUF=".dylib"
2751         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2752         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2753         FFSERVERLDFLAGS=-Wl,-bind_at_load
2754         objformat="macho"
2755         enabled x86_64 && objformat="macho64"
2756         enabled_any pic shared ||
2757             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2758         ;;
2759     mingw32*)
2760         if test $target_os = "mingw32ce"; then
2761             disable network
2762         else
2763             target_os=mingw32
2764         fi
2765         LIBTARGET=i386
2766         if enabled x86_64; then
2767             LIBTARGET=x64
2768         elif enabled arm; then
2769             LIBTARGET=arm-wince
2770         fi
2771         shlibdir_default="$bindir_default"
2772         SLIBPREF=""
2773         SLIBSUF=".dll"
2774         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2775         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2776         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2777         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2778         SLIB_INSTALL_LINKS=
2779         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2780         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2781         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'
2782         objformat="win32"
2783         enable dos_paths
2784         check_cflags -fno-common
2785         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2786                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2787                 die "ERROR: MinGW runtime version must be >= 3.15."
2788         add_cppflags -U__STRICT_ANSI__
2789         ;;
2790     cygwin*)
2791         target_os=cygwin
2792         shlibdir_default="$bindir_default"
2793         SLIBPREF="cyg"
2794         SLIBSUF=".dll"
2795         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2796         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2797         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2798         objformat="win32"
2799         enable dos_paths
2800         check_cflags -fno-common
2801         add_cppflags -U__STRICT_ANSI__
2802         ;;
2803     *-dos|freedos|opendos)
2804         network_extralibs="-lsocket"
2805         objformat="coff"
2806         enable dos_paths
2807         add_cppflags -U__STRICT_ANSI__
2808         ;;
2809     linux)
2810         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2811         enable dv1394
2812         ;;
2813     irix*)
2814         target_os=irix
2815         ranlib="echo ignoring ranlib"
2816         ;;
2817     os/2*)
2818         strip="lxlite -CS"
2819         ln_s="cp -f"
2820         objformat="aout"
2821         add_cppflags -D_GNU_SOURCE
2822         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2823         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2824         FFSERVERLDFLAGS=""
2825         LIBSUF="_s.a"
2826         SLIBPREF=""
2827         SLIBSUF=".dll"
2828         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2829         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2830         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2831           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2832           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2833           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2834           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2835           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2836         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2837           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2838         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2839         enable dos_paths
2840         enable_weak os2threads
2841         ;;
2842     gnu/kfreebsd)
2843         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2844         ;;
2845     gnu)
2846         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2847         ;;
2848     qnx)
2849         add_cppflags -D_QNX_SOURCE
2850         network_extralibs="-lsocket"
2851         ;;
2852     symbian)
2853         SLIBSUF=".dll"
2854         enable dos_paths
2855         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2856         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2857         add_ldflags -Wl,--target1-abs,--no-undefined \
2858                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2859                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2860         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2861                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2862                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2863         ;;
2864     none)
2865         ;;
2866     *)
2867         die "Unknown OS '$target_os'."
2868         ;;
2869 esac
2870
2871 esc(){
2872     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2873 }
2874
2875 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
2876
2877 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2878
2879 set_default $PATHS_LIST
2880
2881 # we need to build at least one lib type
2882 if ! enabled_any static shared; then
2883     cat <<EOF
2884 At least one library type must be built.
2885 Specify --enable-static to build the static libraries or --enable-shared to
2886 build the shared libraries as well. To only build the shared libraries specify
2887 --disable-static in addition to --enable-shared.
2888 EOF
2889     exit 1;
2890 fi
2891
2892 die_license_disabled() {
2893     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2894 }
2895
2896 die_license_disabled_gpl() {
2897     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
2898 }
2899
2900 die_license_disabled gpl libcdio
2901 die_license_disabled gpl libutvideo
2902 die_license_disabled gpl libx264
2903 die_license_disabled gpl libxavs
2904 die_license_disabled gpl libxvid
2905 die_license_disabled gpl x11grab
2906
2907 die_license_disabled nonfree libaacplus
2908 die_license_disabled nonfree libfaac
2909 enabled gpl && die_license_disabled_gpl nonfree openssl
2910
2911 die_license_disabled version3 libopencore_amrnb
2912 die_license_disabled version3 libopencore_amrwb
2913 die_license_disabled version3 libvo_aacenc
2914 die_license_disabled version3 libvo_amrwbenc
2915
2916 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2917
2918 disabled optimizations || check_cflags -fomit-frame-pointer
2919
2920 enable_pic() {
2921     enable pic
2922     add_cppflags -DPIC
2923     add_cflags   -fPIC
2924     add_asflags  -fPIC
2925 }
2926
2927 enabled pic && enable_pic
2928
2929 check_cc <<EOF || die "Symbol mangling check failed."
2930 int ff_extern;
2931 EOF
2932 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2933 extern_prefix=${sym%%ff_extern*}
2934
2935 check_cc <<EOF && enable inline_asm
2936 void foo(void) { __asm__ volatile ("" ::); }
2937 EOF
2938
2939 _restrict=
2940 for restrict_keyword in restrict __restrict__ __restrict; do
2941     check_cc <<EOF && _restrict=$restrict_keyword && break
2942 void foo(char * $restrict_keyword p);
2943 EOF
2944 done
2945
2946 check_cc <<EOF && enable attribute_packed
2947 struct { int x; } __attribute__((packed)) x;
2948 EOF
2949
2950 check_cc <<EOF && enable attribute_may_alias
2951 union { int x; } __attribute__((may_alias)) x;
2952 EOF
2953
2954 check_cc <<EOF || die "endian test failed"
2955 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2956 EOF
2957 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2958
2959 if enabled alpha; then
2960
2961     check_cflags -mieee
2962
2963 elif enabled arm; then
2964
2965     enabled thumb && check_cflags -mthumb || check_cflags -marm
2966     nogas=die
2967
2968     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2969         enable vfp_args
2970     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2971         case "${cross_prefix:-$cc}" in
2972             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2973             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2974 __asm__ (".eabi_attribute 28, 1");
2975 int main(void) { return 0; }
2976 EOF
2977         esac
2978         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2979     fi
2980
2981     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2982     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2983     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2984     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2985     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2986     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2987
2988     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2989
2990     enabled_all armv6t2 shared !pic && enable_pic
2991
2992 elif enabled mips; then
2993
2994     check_asm loongson '"dmult.g $1, $2, $3"'
2995     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2996     enabled mips32r2  && add_cflags "-mips32r2" &&
2997      check_asm mips32r2  '"rotr $t0, $t1, 1"'
2998     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
2999      check_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3000     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3001      check_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3002     enabled mipsfpu   && add_cflags "-mhard-float" &&
3003      check_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3004
3005
3006 elif enabled ppc; then
3007
3008     enable local_aligned_8 local_aligned_16
3009
3010     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3011     check_asm ibm_asm   '"add 0, 0, 0"'
3012     check_asm ppc4xx    '"maclhw r10, r11, r12"'
3013     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3014
3015     # AltiVec flags: The FSF version of GCC differs from the Apple version
3016     if enabled altivec; then
3017         nogas=warn
3018         check_cflags -maltivec -mabi=altivec &&
3019         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3020         check_cflags -faltivec
3021
3022         # check if our compiler supports Motorola AltiVec C API
3023         check_cc <<EOF || disable altivec
3024 $inc_altivec_h
3025 int main(void) {
3026     vector signed int v1, v2, v3;
3027     v1 = vec_add(v2,v3);
3028     return 0;
3029 }
3030 EOF
3031
3032         # check if our compiler supports braces for vector declarations
3033         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3034 $inc_altivec_h
3035 int main (void) { (vector int) {1}; return 0; }
3036 EOF
3037     fi
3038
3039 elif enabled sparc; then
3040
3041     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3042         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3043
3044 elif enabled x86; then
3045
3046     enable local_aligned_8 local_aligned_16
3047
3048     # check whether EBP is available on x86
3049     # As 'i' is stored on the stack, this program will crash
3050     # if the base pointer is used to access it because the
3051     # base pointer is cleared in the inline assembly code.
3052     check_exec_crash <<EOF && enable ebp_available
3053     volatile int i=0;
3054     __asm__ volatile (
3055         "xorl %%ebp, %%ebp"
3056     ::: "%ebp");
3057     return i;
3058 EOF
3059
3060     # check whether EBX is available on x86
3061     check_asm ebx_available '""::"b"(0)' &&
3062         check_asm ebx_available '"":::"%ebx"'
3063
3064     # check whether xmm clobbers are supported
3065     check_asm xmm_clobbers '"":::"%xmm0"'
3066
3067     # check whether binutils is new enough to compile SSSE3/MMX2
3068     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
3069     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
3070
3071     if ! disabled_any asm mmx yasm; then
3072         if check_cmd $yasmexe --version; then
3073             enabled x86_64 && yasm_extra="-m amd64"
3074             yasm_debug="-g dwarf2"
3075         elif check_cmd nasm -v; then
3076             yasmexe=nasm
3077             yasm_debug="-g -F dwarf"
3078             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3079         fi
3080
3081         YASMFLAGS="-f $objformat $yasm_extra"
3082         enabled pic               && append YASMFLAGS "-DPIC"
3083         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3084         case "$objformat" in
3085             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3086         esac
3087
3088         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3089             die "yasm not found, use --disable-yasm for a crippled build"
3090         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3091     fi
3092
3093     case "$cpu" in
3094         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3095             disable fast_clz
3096         ;;
3097     esac
3098
3099 fi
3100
3101 if enabled asm; then
3102     as=${gas:=$as}
3103     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3104         $nogas "GNU assembler not found, install gas-preprocessor"
3105 fi
3106
3107 check_ldflags -Wl,--as-needed
3108
3109 if check_func dlopen; then
3110     ldl=
3111 elif check_func dlopen -ldl; then
3112     ldl=-ldl
3113 fi
3114
3115 if enabled network; then
3116     check_type "sys/types.h sys/socket.h" socklen_t
3117     check_type netdb.h "struct addrinfo"
3118     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3119     check_type netinet/in.h "struct sockaddr_in6"
3120     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3121     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3122     check_header netinet/sctp.h
3123     # Prefer arpa/inet.h over winsock2
3124     if check_header arpa/inet.h ; then
3125         check_func closesocket
3126     elif check_header winsock2.h ; then
3127         check_func_headers winsock2.h closesocket -lws2 && \
3128             network_extralibs="-lws2" || \
3129         { check_func_headers winsock2.h closesocket -lws2_32 && \
3130             network_extralibs="-lws2_32"; }
3131         check_type ws2tcpip.h socklen_t
3132         check_type ws2tcpip.h "struct addrinfo"
3133         check_type ws2tcpip.h "struct ipv6_mreq"
3134         check_type ws2tcpip.h "struct sockaddr_in6"
3135         check_type ws2tcpip.h "struct sockaddr_storage"
3136         check_struct winsock2.h "struct sockaddr" sa_len
3137     else
3138         disable network
3139     fi
3140 fi
3141
3142 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3143 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3144
3145 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3146 check_func  fcntl
3147 check_func  fork
3148 check_func  getaddrinfo $network_extralibs
3149 check_func  gethrtime
3150 check_func  getrusage
3151 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3152 check_func  gettimeofday
3153 check_func  inet_aton $network_extralibs
3154 check_func  isatty
3155 check_func  localtime_r
3156 check_func  ${malloc_prefix}memalign            && enable memalign
3157 check_func  mkstemp
3158 check_func  mmap
3159 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3160 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3161 check_func  setrlimit
3162 check_func  strerror_r
3163 check_func  strptime
3164 check_func  sched_getaffinity
3165 check_func  sysconf
3166 check_func  sysctl
3167 check_func  usleep
3168 check_func_headers conio.h kbhit
3169 check_func_headers windows.h PeekNamedPipe
3170 check_func_headers io.h setmode
3171 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3172 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3173 check_func_headers windows.h GetProcessAffinityMask
3174 check_func_headers windows.h GetProcessTimes
3175 check_func_headers windows.h GetSystemTimeAsFileTime
3176 check_func_headers windows.h MapViewOfFile
3177 check_func_headers windows.h Sleep
3178 check_func_headers windows.h VirtualAlloc
3179 check_func_headers glob.h glob
3180
3181 check_header dlfcn.h
3182 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3183 check_header libcrystalhd/libcrystalhd_if.h
3184 check_header malloc.h
3185 check_header poll.h
3186 check_header sys/mman.h
3187 check_header sys/param.h
3188 check_header sys/resource.h
3189 check_header sys/select.h
3190 check_header termios.h
3191 check_header unistd.h
3192 check_header vdpau/vdpau.h
3193 check_header vdpau/vdpau_x11.h
3194 check_header windows.h
3195 check_header X11/extensions/XvMClib.h
3196 check_header asm/types.h
3197
3198 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3199 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3200
3201 # check for VDA header
3202 if ! disabled vda; then
3203     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3204         enable vda
3205         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3206     fi
3207 fi
3208
3209 if ! disabled w32threads && ! enabled pthreads; then
3210     check_func _beginthreadex && enable w32threads
3211 fi
3212
3213 # check for some common methods of building with pthread support
3214 # do this before the optional library checks as some of them require pthreads
3215 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3216     enable pthreads
3217     if check_func pthread_create; then
3218         :
3219     elif check_func pthread_create -pthread; then
3220         add_cflags -pthread
3221         add_extralibs -pthread
3222     elif check_func pthread_create -pthreads; then
3223         add_cflags -pthreads
3224         add_extralibs -pthreads
3225     elif check_func pthread_create -lpthreadGC2; then
3226         add_extralibs -lpthreadGC2
3227     elif ! check_lib pthread.h pthread_create -lpthread; then
3228         disable pthreads
3229     fi
3230 fi
3231
3232 for thread in $THREADS_LIST; do
3233     if enabled $thread; then
3234         test -n "$thread_type" &&
3235             die "ERROR: Only one thread type must be selected." ||
3236             thread_type="$thread"
3237     fi
3238 done
3239
3240 if enabled pthreads; then
3241   check_func pthread_cancel
3242 fi
3243
3244 check_lib math.h sin -lm && LIBM="-lm"
3245 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3246 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3247
3248 check_mathfunc cbrtf
3249 check_mathfunc exp2
3250 check_mathfunc exp2f
3251 check_mathfunc llrint
3252 check_mathfunc llrintf
3253 check_mathfunc log2
3254 check_mathfunc log2f
3255 check_mathfunc lrint
3256 check_mathfunc lrintf
3257 check_mathfunc round
3258 check_mathfunc roundf
3259 check_mathfunc trunc
3260 check_mathfunc truncf
3261
3262 # these are off by default, so fail if requested and not available
3263 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3264 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3265 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3266 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3267 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3268 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3269 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3270 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3271                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3272                         die "ERROR: libcelt version must be >= 0.11.0."; }
3273 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3274 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3275 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3276 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3277 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3278 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3279 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3280 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3281 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3282 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3283 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3284 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3285 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3286 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3287 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3288 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3289     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3290     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3291 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3292 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3293 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3294 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3295 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3296 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3297 enabled libvpx     && {
3298     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3299                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3300     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3301                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3302 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3303                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3304                         die "ERROR: libx264 version must be >= 0.118."; }
3305 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3306 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3307 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3308                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3309                         die "ERROR: openal not found"; } &&
3310                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3311                         die "ERROR: openal version must be 1.1 or compatible"; }
3312 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3313                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3314                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3315                         die "ERROR: openssl not found"; }
3316
3317 # libdc1394 check
3318 if enabled libdc1394; then
3319     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3320         enable libdc1394_2; } ||
3321     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3322         enable libdc1394_1; } ||
3323     die "ERROR: No version of libdc1394 found "
3324 fi
3325
3326 SDL_CONFIG="${cross_prefix}sdl-config"
3327 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3328     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3329     enable sdl &&
3330     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3331 else
3332   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3333     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3334     sdl_libs=$("${SDL_CONFIG}" --libs)
3335     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3336     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3337     enable sdl &&
3338     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3339   fi
3340 fi
3341 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3342
3343 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3344 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3345
3346 check_header linux/fb.h
3347 check_header linux/videodev.h
3348 check_header linux/videodev2.h
3349 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3350
3351 check_header sys/videoio.h
3352
3353 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3354 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3355 # w32api 3.12 had it defined wrong
3356 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3357
3358 check_type "dshow.h" IBaseFilter
3359
3360 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3361 { check_header dev/bktr/ioctl_meteor.h &&
3362   check_header dev/bktr/ioctl_bt848.h; } ||
3363 { check_header machine/ioctl_meteor.h &&
3364   check_header machine/ioctl_bt848.h; } ||
3365 { check_header dev/video/meteor/ioctl_meteor.h &&
3366   check_header dev/video/bktr/ioctl_bt848.h; } ||
3367 check_header dev/ic/bt8xx.h
3368
3369 check_header sndio.h
3370 if check_struct sys/soundcard.h audio_buf_info bytes; then
3371     enable_safe sys/soundcard.h
3372 else
3373     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3374     #include <sys/soundcard.h>
3375     audio_buf_info abc;
3376 EOF
3377 fi
3378 check_header soundcard.h
3379
3380 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3381
3382 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3383     check_func jack_port_get_latency_range -ljack
3384
3385 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3386
3387 enabled libcdio &&
3388     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3389
3390 enabled x11grab                                           &&
3391 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3392 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3393 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3394
3395 if ! disabled vaapi; then
3396     check_lib va/va.h vaInitialize -lva && {
3397         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3398         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3399     } || disable vaapi
3400 fi
3401
3402 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3403 check_cpp_condition \
3404     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3405     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3406       disable vdpau; }
3407 fi
3408
3409 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3410 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3411 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"
3412
3413 # add some useful compiler flags if supported
3414 check_cflags -Wdeclaration-after-statement
3415 check_cflags -Wall
3416 check_cflags -Wno-parentheses
3417 check_cflags -Wno-switch
3418 check_cflags -Wno-format-zero-length
3419 check_cflags -Wdisabled-optimization
3420 check_cflags -Wpointer-arith
3421 check_cflags -Wredundant-decls
3422 check_cflags -Wno-pointer-sign
3423 check_cflags -Wwrite-strings
3424 check_cflags -Wtype-limits
3425 check_cflags -Wundef
3426 check_cflags -Wmissing-prototypes
3427 check_cflags -Wno-pointer-to-int-cast
3428 check_cflags -Wstrict-prototypes
3429 enabled extra_warnings && check_cflags -Winline
3430
3431 # add some linker flags
3432 check_ldflags -Wl,--warn-common
3433 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3434 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3435
3436 enabled xmm_clobber_test &&                             \
3437     check_ldflags -Wl,--wrap,avcodec_open2              \
3438                   -Wl,--wrap,avcodec_decode_audio4      \
3439                   -Wl,--wrap,avcodec_decode_video2      \
3440                   -Wl,--wrap,avcodec_decode_subtitle2   \
3441                   -Wl,--wrap,avcodec_encode_audio2      \
3442                   -Wl,--wrap,avcodec_encode_video       \
3443                   -Wl,--wrap,avcodec_encode_subtitle    \
3444                   -Wl,--wrap,sws_scale ||               \
3445     disable xmm_clobber_test
3446
3447 echo "X{};" > $TMPV
3448 if test_ldflags -Wl,--version-script,$TMPV; then
3449     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3450     check_cc <<EOF && enable symver_asm_label
3451 void ff_foo(void) __asm__ ("av_foo@VERSION");
3452 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3453 EOF
3454     check_cc <<EOF && enable symver_gnu_asm
3455 __asm__(".symver ff_foo,av_foo@VERSION");
3456 void ff_foo(void) {}
3457 EOF
3458 fi
3459
3460 if [ -n "$optflags" ]; then
3461     add_cflags $optflags
3462 elif enabled small; then
3463     add_cflags $size_cflags
3464 elif enabled optimizations; then
3465     add_cflags $speed_cflags
3466 else
3467     add_cflags $noopt_cflags
3468 fi
3469 check_cflags -fno-math-errno
3470 check_cflags -fno-signed-zeros
3471 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3472 int x;
3473 EOF
3474
3475
3476 if enabled icc; then
3477     # Just warnings, no remarks
3478     check_cflags -w1
3479     # -wd: Disable following warnings
3480     # 144, 167, 556: -Wno-pointer-sign
3481     # 1292: attribute "foo" ignored
3482     # 1419: external declaration in primary source file
3483     # 10006: ignoring unknown option -fno-signed-zeros
3484     # 10148: ignoring unknown option -Wno-parentheses
3485     # 10156: ignoring option '-W'; no argument required
3486     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3487     # 11030: Warning unknown option --as-needed
3488     # 10156: ignoring option '-export'; no argument required
3489     check_ldflags -wd10156,11030
3490     # Allow to compile with optimizations
3491     check_ldflags -march=$cpu
3492     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3493     enable ebp_available
3494     if enabled x86_32; then
3495         test ${icc_version%%.*} -ge 11 && \
3496             check_cflags -falign-stack=maintain-16-byte || \
3497             disable aligned_stack
3498     fi
3499 elif enabled ccc; then
3500     # disable some annoying warnings
3501     add_cflags -msg_disable cvtu32to64
3502     add_cflags -msg_disable embedcomment
3503     add_cflags -msg_disable needconstext
3504     add_cflags -msg_disable nomainieee
3505     add_cflags -msg_disable ptrmismatch1
3506     add_cflags -msg_disable unreachcode
3507 elif enabled gcc; then
3508     check_cflags -fno-tree-vectorize
3509     check_cflags -Werror=implicit-function-declaration
3510     check_cflags -Werror=missing-prototypes
3511 elif enabled llvm_gcc; then
3512     check_cflags -mllvm -stack-alignment=16
3513 elif enabled clang; then
3514     check_cflags -mllvm -stack-alignment=16
3515     check_cflags -Qunused-arguments
3516 elif enabled armcc; then
3517     # 2523: use of inline assembler is deprecated
3518     add_cflags -W${armcc_opt},--diag_suppress=2523
3519     add_cflags -W${armcc_opt},--diag_suppress=1207
3520     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3521     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3522     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3523     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3524 elif enabled tms470; then
3525     add_cflags -pds=824 -pds=837
3526 elif enabled pathscale; then
3527     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3528 fi
3529
3530 enabled_any $THREADS_LIST      && enable threads
3531
3532 check_deps $CONFIG_LIST       \
3533            $CONFIG_EXTRA      \
3534            $HAVE_LIST         \
3535            $ALL_COMPONENTS    \
3536            $ALL_TESTS         \
3537
3538 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3539
3540 if test $target_os = "haiku"; then
3541     disable memalign
3542     disable posix_memalign
3543 fi
3544
3545 ! enabled_any memalign posix_memalign aligned_malloc &&
3546     enabled_any $need_memalign && enable memalign_hack
3547
3548 # add_dep lib dep
3549 # -> enable ${lib}_deps_${dep}
3550 # -> add $dep to ${lib}_deps only once
3551 add_dep() {
3552     lib=$1
3553     dep=$2
3554     enabled "${lib}_deps_${dep}" && return 0
3555     enable  "${lib}_deps_${dep}"
3556     prepend "${lib}_deps" $dep
3557 }
3558
3559 # merge deps lib components
3560 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3561 merge_deps() {
3562     lib=$1
3563     shift
3564     for comp in $*; do
3565         enabled $comp || continue
3566         eval "dep=\"\$${comp}_deps\""
3567         for d in $dep; do
3568             add_dep $lib $d
3569         done
3570     done
3571 }
3572
3573 merge_deps libavfilter $FILTER_LIST
3574
3575 echo "install prefix            $prefix"
3576 echo "source path               $source_path"
3577 echo "C compiler                $cc"
3578 echo "ARCH                      $arch ($cpu)"
3579 if test "$build_suffix" != ""; then
3580     echo "build suffix              $build_suffix"
3581 fi
3582 if test "$progs_suffix" != ""; then
3583     echo "progs suffix              $progs_suffix"
3584 fi
3585 if test "$extra_version" != ""; then
3586     echo "version string suffix     $extra_version"
3587 fi
3588 echo "big-endian                ${bigendian-no}"
3589 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3590 if enabled x86; then
3591     echo "${yasmexe}                      ${yasm-no}"
3592     echo "MMX enabled               ${mmx-no}"
3593     echo "MMX2 enabled              ${mmx2-no}"
3594     echo "3DNow! enabled            ${amd3dnow-no}"
3595     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3596     echo "SSE enabled               ${sse-no}"
3597     echo "SSSE3 enabled             ${ssse3-no}"
3598     echo "AVX enabled               ${avx-no}"
3599     echo "CMOV enabled              ${cmov-no}"
3600     echo "CMOV is fast              ${fast_cmov-no}"
3601     echo "EBX available             ${ebx_available-no}"
3602     echo "EBP available             ${ebp_available-no}"
3603 fi
3604 if enabled arm; then
3605     echo "ARMv5TE enabled           ${armv5te-no}"
3606     echo "ARMv6 enabled             ${armv6-no}"
3607     echo "ARMv6T2 enabled           ${armv6t2-no}"
3608     echo "ARM VFP enabled           ${armvfp-no}"
3609     echo "NEON enabled              ${neon-no}"
3610 fi
3611 if enabled mips; then
3612     echo "MMI enabled               ${mmi-no}"
3613     echo "MIPS FPU enabled          ${mipsfpu-no}"
3614     echo "MIPS32R2 enabled          ${mips32r2-no}"
3615     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3616     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3617 fi
3618 if enabled ppc; then
3619     echo "AltiVec enabled           ${altivec-no}"
3620     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3621     echo "dcbzl available           ${dcbzl-no}"
3622 fi
3623 if enabled sparc; then
3624     echo "VIS enabled               ${vis-no}"
3625 fi
3626 echo "debug symbols             ${debug-no}"
3627 echo "strip symbols             ${stripping-no}"
3628 echo "optimize for size         ${small-no}"
3629 echo "optimizations             ${optimizations-no}"
3630 echo "static                    ${static-no}"
3631 echo "shared                    ${shared-no}"
3632 echo "postprocessing support    ${postproc-no}"
3633 echo "new filter support        ${avfilter-no}"
3634 echo "network support           ${network-no}"
3635 echo "threading support         ${thread_type-no}"
3636 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3637 echo "SDL support               ${sdl-no}"
3638 echo "libdxva2 enabled          ${dxva2-no}"
3639 echo "libva enabled             ${vaapi-no}"
3640 echo "libvdpau enabled          ${vdpau-no}"
3641 echo "AVISynth enabled          ${avisynth-no}"
3642 echo "frei0r enabled            ${frei0r-no}"
3643 echo "gnutls enabled            ${gnutls-no}"
3644 echo "libaacplus enabled        ${libaacplus-no}"
3645 echo "libass enabled            ${libass-no}"
3646 echo "libcdio support           ${libcdio-no}"
3647 echo "libcelt enabled           ${libcelt-no}"
3648 echo "libdc1394 support         ${libdc1394-no}"
3649 echo "libfaac enabled           ${libfaac-no}"
3650 echo "libgsm enabled            ${libgsm-no}"
3651 echo "libilbc enabled           ${libilbc-no}"
3652 echo "libmodplug enabled        ${libmodplug-no}"
3653 echo "libmp3lame enabled        ${libmp3lame-no}"
3654 echo "libnut enabled            ${libnut-no}"
3655 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3656 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3657 echo "libopencv support         ${libopencv-no}"
3658 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3659 echo "libpulse enabled          ${libpulse-no}"
3660 echo "librtmp enabled           ${librtmp-no}"
3661 echo "libschroedinger enabled   ${libschroedinger-no}"
3662 echo "libspeex enabled          ${libspeex-no}"
3663 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3664 echo "libtheora enabled         ${libtheora-no}"
3665 echo "libutvideo enabled        ${libutvideo-no}"
3666 echo "libv4l2 enabled           ${libv4l2-no}"
3667 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3668 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3669 echo "libvorbis enabled         ${libvorbis-no}"
3670 echo "libvpx enabled            ${libvpx-no}"
3671 echo "libx264 enabled           ${libx264-no}"
3672 echo "libxavs enabled           ${libxavs-no}"
3673 echo "libxvid enabled           ${libxvid-no}"
3674 echo "openal enabled            ${openal-no}"
3675 echo "openssl enabled           ${openssl-no}"
3676 echo "zlib enabled              ${zlib-no}"
3677 echo "bzlib enabled             ${bzlib-no}"
3678 test -n "$random_seed" &&
3679     echo "random seed               ${random_seed}"
3680 echo
3681
3682 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3683     echo "Enabled ${type}s:"
3684     eval list=\$$(toupper $type)_LIST
3685     print_enabled '_*' $list | sort | pr -r -3 -t
3686     echo
3687 done
3688
3689 license="LGPL version 2.1 or later"
3690 if enabled nonfree; then
3691     license="nonfree and unredistributable"
3692 elif enabled gplv3; then
3693     license="GPL version 3 or later"
3694 elif enabled lgplv3; then
3695     license="LGPL version 3 or later"
3696 elif enabled gpl; then
3697     license="GPL version 2 or later"
3698 fi
3699
3700 echo "License: $license"
3701
3702 echo "Creating config.mak and config.h..."
3703
3704 test -e Makefile || $ln_s "$source_path/Makefile" .
3705
3706 enabled stripping || strip="echo skipping strip"
3707
3708 config_files="$TMPH config.mak"
3709
3710 cat > config.mak <<EOF
3711 # Automatically generated by configure - do not modify!
3712 ifndef FFMPEG_CONFIG_MAK
3713 FFMPEG_CONFIG_MAK=1
3714 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3715 prefix=$prefix
3716 LIBDIR=\$(DESTDIR)$libdir
3717 SHLIBDIR=\$(DESTDIR)$shlibdir
3718 INCDIR=\$(DESTDIR)$incdir
3719 BINDIR=\$(DESTDIR)$bindir
3720 DATADIR=\$(DESTDIR)$datadir
3721 MANDIR=\$(DESTDIR)$mandir
3722 SRC_PATH=$source_path
3723 ifndef MAIN_MAKEFILE
3724 SRC_PATH:=\$(SRC_PATH:.%=..%)
3725 endif
3726 CC_IDENT=$cc_ident
3727 ARCH=$arch
3728 CC=$cc
3729 CXX=$cxx
3730 AS=$as
3731 LD=$ld
3732 DEPCC=$dep_cc
3733 YASM=$yasmexe
3734 YASMDEP=$yasmexe
3735 AR=$ar
3736 RANLIB=$ranlib
3737 CP=cp -p
3738 LN_S=$ln_s
3739 STRIP=$strip
3740 CPPFLAGS=$CPPFLAGS
3741 CFLAGS=$CFLAGS
3742 CXXFLAGS=$CXXFLAGS
3743 ASFLAGS=$ASFLAGS
3744 AS_O=$CC_O
3745 CC_O=$CC_O
3746 CXX_O=$CXX_O
3747 LDFLAGS=$LDFLAGS
3748 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3749 SHFLAGS=$SHFLAGS
3750 YASMFLAGS=$YASMFLAGS
3751 BUILDSUF=$build_suffix
3752 PROGSSUF=$progs_suffix
3753 FULLNAME=$FULLNAME
3754 LIBPREF=$LIBPREF
3755 LIBSUF=$LIBSUF
3756 LIBNAME=$LIBNAME
3757 SLIBPREF=$SLIBPREF
3758 SLIBSUF=$SLIBSUF
3759 EXESUF=$EXESUF
3760 EXTRA_VERSION=$extra_version
3761 DEPFLAGS=$DEPFLAGS
3762 CCDEP=$CCDEP
3763 CXXDEP=$CXXDEP
3764 ASDEP=$ASDEP
3765 CC_DEPFLAGS=$CC_DEPFLAGS
3766 AS_DEPFLAGS=$AS_DEPFLAGS
3767 HOSTCC=$host_cc
3768 HOSTCFLAGS=$host_cflags
3769 HOSTEXESUF=$HOSTEXESUF
3770 HOSTLDFLAGS=$host_ldflags
3771 HOSTLIBS=$host_libs
3772 TARGET_EXEC=$target_exec
3773 TARGET_PATH=$target_path
3774 SDL_LIBS=$sdl_libs
3775 SDL_CFLAGS=$sdl_cflags
3776 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3777 EXTRALIBS=$extralibs
3778 INSTALL=$install
3779 LIBTARGET=${LIBTARGET}
3780 SLIBNAME=${SLIBNAME}
3781 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3782 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3783 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3784 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3785 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3786 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3787 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3788 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3789 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3790 NOREDZONE_FLAGS=$noredzone_flags
3791 EOF
3792
3793 get_version(){
3794     name=$1
3795     file=$source_path/$2
3796 # This condition will be removed when we stop supporting old libpostproc versions
3797 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3798     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3799     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3800 fi
3801     lcname=$(tolower $name)
3802     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3803     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3804 }
3805
3806 get_version LIBAVCODEC  libavcodec/version.h
3807 get_version LIBAVDEVICE libavdevice/avdevice.h
3808 get_version LIBAVFILTER libavfilter/version.h
3809 get_version LIBAVFORMAT libavformat/version.h
3810 get_version LIBAVRESAMPLE libavresample/version.h
3811 get_version LIBAVUTIL   libavutil/avutil.h
3812 get_version LIBPOSTPROC libpostproc/postprocess.h
3813 get_version LIBSWRESAMPLE libswresample/swresample.h
3814 get_version LIBSWSCALE  libswscale/swscale.h
3815
3816 cat > $TMPH <<EOF
3817 /* Automatically generated by configure - do not modify! */
3818 #ifndef FFMPEG_CONFIG_H
3819 #define FFMPEG_CONFIG_H
3820 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3821 #define FFMPEG_LICENSE "$(c_escape $license)"
3822 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3823 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3824 #define CC_TYPE "$cc_type"
3825 #define CC_VERSION $cc_version
3826 #define av_restrict $_restrict
3827 #define EXTERN_PREFIX "${extern_prefix}"
3828 #define EXTERN_ASM ${extern_prefix}
3829 #define SLIBSUF "$SLIBSUF"
3830 EOF
3831
3832 test -n "$assert_level" &&
3833     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
3834
3835 test -n "$malloc_prefix" &&
3836     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3837
3838 if enabled small || disabled optimizations; then
3839     echo "#undef  av_always_inline"  >> $TMPH
3840     if enabled small; then
3841         echo "#define av_always_inline inline"  >> $TMPH
3842     else
3843         echo "#define av_always_inline av_unused"  >> $TMPH
3844     fi
3845 fi
3846
3847 if enabled yasm; then
3848     append config_files $TMPASM
3849     printf '' >$TMPASM
3850 fi
3851
3852 print_config ARCH_   "$config_files" $ARCH_LIST
3853 print_config HAVE_   "$config_files" $HAVE_LIST
3854 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3855                                      $CONFIG_EXTRA      \
3856                                      $ALL_COMPONENTS    \
3857
3858 cat >>config.mak <<EOF
3859 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3860 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3861 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3862 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3863 EOF
3864
3865 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3866 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3867
3868 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3869 cp_if_changed $TMPH config.h
3870 touch .config
3871
3872 enabled yasm && cp_if_changed $TMPASM config.asm
3873
3874 cat > $TMPH <<EOF
3875 /* Generated by ffconf */
3876 #ifndef AVUTIL_AVCONFIG_H
3877 #define AVUTIL_AVCONFIG_H
3878 EOF
3879
3880 test "$postproc_version" != current && cat >> $TMPH <<EOF
3881 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3882 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3883 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3884 EOF
3885
3886 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3887
3888 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3889
3890 cp_if_changed $TMPH libavutil/avconfig.h
3891
3892 test -n "$WARNINGS" && printf "\n$WARNINGS"
3893
3894 # build pkg-config files
3895
3896 pkgconfig_generate(){
3897 name=$1
3898 shortname=${name#lib}${build_suffix}
3899 comment=$2
3900 version=$3
3901 libs=$4
3902 requires=$5
3903 enabled ${name#lib} || return 0
3904 mkdir -p $name
3905 cat <<EOF > $name/$name.pc
3906 prefix=$prefix
3907 exec_prefix=\${prefix}
3908 libdir=$libdir
3909 includedir=$incdir
3910
3911 Name: $name
3912 Description: $comment
3913 Version: $version
3914 Requires: $(enabled shared || echo $requires)
3915 Requires.private: $(enabled shared && echo $requires)
3916 Conflicts:
3917 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3918 Libs.private: $(enabled shared && echo $libs)
3919 Cflags: -I\${includedir}
3920 EOF
3921 cat <<EOF > $name/$name-uninstalled.pc
3922 prefix=
3923 exec_prefix=
3924 libdir=\${pcfiledir}
3925 includedir=${source_path}
3926
3927 Name: $name
3928 Description: $comment
3929 Version: $version
3930 Requires: $requires
3931 Conflicts:
3932 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3933 Cflags: -I\${includedir}
3934 EOF
3935 }
3936
3937 libavfilter_pc_deps=""
3938 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
3939 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
3940 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
3941 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
3942 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
3943 libavfilter_pc_deps=${libavfilter_pc_deps%, }
3944
3945 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
3946 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
3947
3948 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3949 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3950 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3951 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
3952 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
3953 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3954 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
3955 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
3956 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"